Annals of Coloproctology

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Original Articles

Complications

Comparative outcomes of early and late rectourethral fistula: insights from a multicentric retrospective study on multidisciplinary management strategies: Pauline Jeannot, Edouard Roussel, Alexandre Dutoit, Maxime Collard, Niki Christou, Jérémie H. Lefevre, Amine Souadka, Alves Arnaud, Antonio Castaldi, Martin Bertrand, Nicolas Michot, Benjamin Faivre d’Arcier, Jean Jacques Tuech, Franck Bruyère, Urs Giger-Pabst, Mehdi Ouaïssi, for the French Research Group of Rectal Cancer Surgery (GRECCAR); Ann Coloproctol. 2026;42(1):103-114. Published online February 27, 2026; DOI: https://doi.org/10.3393/ac.2025.00696.0099

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Abstract PDF: Purpose
The objective of this study was to evaluate the natural history of early and late rectourethral fistulas (RUFs) and to determine the long-term outcomes of a multidisciplinary management approach.
Methods
A multicenter retrospective study was performed on patients with RUF who were treated by a combined colorectal and urological team. Early RUF (ERUF) was defined as occurring within 31 days after surgery, while late RUF (LRUF) was defined as occurring thereafter. Surgical procedures and the surgeons involved were recorded, in addition to clinical assessments, radiological findings, and oncological assessments.
Results
A total of 72 patients diagnosed with RUF were treated between January 1, 2010, and June 2023. Patients were divided into ERUF (n=37) and LRUF (n=35) groups. After conservative management, comparisons of success rates for graciloplasty, York-Mason, and delayed coloanal anastomosis as second and third treatments showed higher rates for graciloplasty in ERUF than in LRUF (83% vs. 40%, P=0.034; 71% vs. 33%, P=0.500; and 60% vs. 40%, P>0.999, respectively). The ERUF group demonstrated significantly higher cure rates after the second treatment (83.8% vs. 40.0%, P<0.001). At final follow-up, complete healing was significantly more frequent in ERUF than in LRUF (83.8% vs. 42.9%, P<0.005). Definitive digestive and urinary diversion rates were lower in ERUF (13.5% vs. 48.5%, P=0.001; and 13.5% vs. 25.7%, P=0.240, respectively).
Conclusion
These findings suggest that 30% of patients required a definitive colostomy, with a significantly higher proportion observed in the LRUF group. Moreover, repeated surgical procedures in the LRUF group were frequently unsuccessful.

Colorectal cancer

Upfront surgery versus preoperative chemoradiotherapy: a comparative survival analysis for stage II/III resectable rectal cancer: Nattapanee Sukphol, Thitithep Limvorapitak; Ann Coloproctol. 2026;42(1):115-126. Published online February 26, 2026; DOI: https://doi.org/10.3393/ac.2025.00724.0103

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Graphical Abstract Abstract PDF: Purpose
Current international guidelines recommend neoadjuvant chemoradiotherapy (nCRT) followed by total mesorectal excision (TME) for locally advanced rectal cancer (LARC). Although nCRT reduces the risk of local recurrence, it has not demonstrated a survival advantage and increases the likelihood of preoperative overtreatment. This study investigated whether upfront TME could be offered without compromising oncologic outcomes.
Methods
From January 2015 to December 2020, patients with stage II/III LARC who underwent either upfront TME or nCRT followed by TME were analyzed using propensity score matching. Long-term survival outcomes were compared between the 2 groups. The primary endpoint was 5-year disease-free survival. Secondary endpoints included 5-year local recurrence-free survival, distant metastasis-free survival, and overall survival.
Results
A total of 348 patients were included, of whom 138 (39.7%) underwent upfront TME. The upfront TME group showed significantly higher 5-year disease-free survival (63.3% vs. 43.9%) and distant metastasis-free survival (88.1% vs. 70.3%). However, after excluding patients with preoperative mesorectal fascia (MRF) involvement, no significant differences were observed in long-term oncologic outcomes. Following 1:1 propensity score matching, 47 patients from each group were compared. Kaplan-Meier survival analysis revealed no significant differences in any endpoints. Cox regression analysis of the matched cohort indicated that preoperative MRF involvement, positive extramural vascular invasion, and tumor deposits were not independent prognostic factors.
Conclusion
Upfront TME may represent a viable treatment option for selected patients with LARC, particularly those without MRF involvement, providing comparable oncologic outcomes to the standard nCRT approach.

Review

Colorectal cancer

Fluorescence-guided surgery in colorectal cancer: current evidence, quantitative advances, and future perspectives: Kyung-Ha Lee; Ann Coloproctol. 2026;42(1):58-71. Published online February 25, 2026; DOI: https://doi.org/10.3393/ac.2025.01438.0205

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Abstract PDF

Fluorescence-guided surgery (FGS) has progressed from a qualitative adjunct to a quantitative, data-driven tool in colorectal surgery. Fluorescence-guided angiography for perfusion assessment shows mixed randomized results overall, with signals of benefit in low anterior resection and less-severe leaks; emerging metrics (e.g., time-to-peak, slope, time from the initial fluorescence increase to half of the maximum [T1/2MAX], time ratio [TR]) support objective decision-making. Fluorescence-guided lymphatic mapping can increase D3 yield, whereas consistent oncologic benefit remains uncertain; sentinel lymph node mapping in early colon cancer is feasible but not standard. In advanced rectal cancer, fluorescence may facilitate lateral pelvic node dissection with lower blood loss and selective clearance, though long-term outcomes require confirmation. Tumor-targeted imaging shifts FGS from anatomy to biology, aiding detection of occult disease, characterization of indeterminate lesions after therapy, and therapeutic decision-making for organ preservation. Near-infrared II (NIR-II) agents and hybrid positron emission tomography (PET)/NIR tracers promise deeper penetration and preoperative-to-intraoperative correlation but remain largely preclinical. Platform advances, automated data capture, tumor to background ratio thresholds, and artificial intelligence–assisted analytics are moving FGS toward integrated, reproducible workflows. Priorities include international standardization, prospective trials with long-term endpoints, validated tumor-targeted probes, and digital/robotic integration.

Citations

Citations to this article as recorded by

Over and above what is visible and conventional: development of new territories in colorectal cancer management
In Ja Park
Annals of Coloproctology.2026; 42(1): 1. CrossRef

Guideline

Colorectal cancer

The Korean Rectal Cancer Multidisciplinary Committee Clinical Practice Guidelines for Rectal Cancer version 2.0: Hyo Seon Ryu, Hyun Jung Kim, Dong Hyun Kang, Yoo-Kang Kwak, Han Deok Kwak, Yoon-Hye Kwon, Dalyong Kim, Baek-Hui Kim, Jae Hyun Kim, Ji Hun Kim, Jin Won Kim, Tae Hyung Kim, Hae Young Kim, Soo Min Nam, Gyoung Tae Noh, Jun Woo Bong, Nak Song Sung, Seon Hui Shin, Kil-Yong Lee, Sung Chul Lee, Sea-Won Lee, Jung Won Lee, Jong Min Lee, Myung Hoon Ihn, Joo Han Lim, Woong Bae Ji, Dae Hee Pyo, Young Ki Hong, Jung-Myun Kwak, on behalf of the Korean Rectal Cancer Multidisciplinary (KRCM) Committee; Ann Coloproctol. 2026;42(1):4-33. Published online February 24, 2026; DOI: https://doi.org/10.3393/ac.2025.01396.0199

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Abstract PDF Supplementary Material: Rectal cancer, which accounts for approximately 40% of colorectal cancers, remains a major clinical concern. Recent advances in diagnostic imaging, surgical techniques, radiotherapy, and systemic treatment have steadily improved rectal cancer outcomes. Considering this, the Korean Rectal Cancer Multidisciplinary (KRCM) Committee has aimed to provide clinicians and policymakers with up-to-date, evidence-based clinical practice guidelines to support optimal decision-making, reflecting current evidence, the Korean healthcare context, and patient values and preferences. The Clinical Practice Guidelines for Rectal Cancer version 2.0 were developed through multidisciplinary collaboration with related academic societies, building upon and updating the KRCM Clinical Practice Guidelines version 1.0 (titled “Multidisciplinary guidelines for the management of rectal cancer”). These consensus guidelines of the KRCM were established based on a comprehensive literature review, evidence synthesis, with recommendation development guided by the GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology, and consideration of applicability in real-world clinical practice under the national health insurance system. Each recommendation has been presented with its strength and level of evidence.

Original Articles

Minimally invasive surgery

Interim analysis of short-term outcomes between robotic and laparoscopic surgery for colon cancer: results from the ESSIMIC trial: Marco Milone, Sara Vertaldi, Pietro Anoldo, Simona Borin, Graziano Ceccarelli, Anna D’Amore, Maurizio Degiuli, Paolo Delrio, Uberto Romario Fumagalli, Mario Guerrieri, Michele Manigrasso, Monica Ortenzi, Ugo Pace, Felice Pirozzi, Lucia Puca, Wanda Petz, Rossella Reddavid, Daniela Rega, Fabio Rondelli, Antonio Sciuto, Giovanni Domenico De Palma; Ann Coloproctol. 2026;42(1):86-93. Published online February 23, 2026; DOI: https://doi.org/10.3393/ac.2025.00339.0048

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Graphical Abstract Abstract PDF Supplementary Material: Purpose
This study aimed to determine whether the benefits of robotic surgery can be applied to the treatment of colon cancer by evaluating short-term outcomes of robotic versus laparoscopic colonic resection.
Methods
This interim analysis of an interventional multicenter randomized trial was conducted to compare outcomes of robotic and laparoscopic colorectal surgery performed between January 2017 and December 2019. The study specifically assessed short-term outcomes in patients undergoing laparoscopic or robotic right or left colectomy for cancer. In addition, all short-term outcomes were evaluated in separate subgroups of right and left colonic resections through prespecified subgroup analyses.
Results
A total of 323 patients were analyzed, of whom 142 underwent robotic-assisted surgery and 181 underwent laparoscopic surgery. Overall, 109 complications (33.7%) occurred in the short-term period, 41 (28.9%) in the robotic group and 68 (37.6%) in the laparoscopic group, with no differences between groups in intraoperative or postoperative complications. However, grade III complications were significantly more frequent in the laparoscopic group, with 17 cases (9.4%) compared to 5 cases (3.5%) in the robotic group. Oncological radicality was similar between groups. Functional recovery after surgery was superior in the robotic group, as reflected by a shorter time to mobilization (17.5±10.2 hours vs. 21.1±11.5 hours). In the right colectomy subgroup, rates of grade III complications (1.9% vs. 11.7%) and lymph nodes retrieved (20.3±10.3 vs. 20.2±6.4) favored robotic surgery. In the left colon cancer subgroup, functional recovery was also improved with robotic surgery (44.3±22.2 hours vs. 61.1±31.1 hours, as measured by the composite recovery outcome).
Conclusion
Robotic surgery is associated with fewer severe complications and improved postoperative recovery following colonic resections. Trial registration: ClinicalTrials.gov identifier: NCT02871960

Anorectal benign disease

Patient-reported outcomes after hemorrhoid surgery: early results from a prospective, nationwide, real-world, cohort study on diverse approaches: Metin Kement, Atıf Tekin, Hakan Baysal, Salih Tosun, Orhan Alimoğlu, İlker Sücüllü, Osman Civil, Nevin Sakoğlu, Naciye Çiğdem Arslan, Cihad Tatar, Ali Emre Naycı, Aziz Arı, Ensar Çakır, Rozan Kaya, İlknur Turan, Taygun Gülşen, Serhat Meriç, Erkan Yavuz, Nihat Buğdaycı, Farid Mohamad Hamad, Sezai Leventoğlu, Ramazan Kozan, Özkan Akpınar, Hakan Yanar, Fatih Yanar, Hasan Fehmi Küçük, Mehmet Karahan, Selçuk Kaya, Nail Can Adıgüzel, Tolga Önder, İlker Abcı, Ahmet Zeki Aydın, Ömer Faruk Özkan, Nurhilal Kızıltoprak, Berkay Özcan, Anıl Orhan, Alp Ömer Cantürk, Murat Tan, Yusuf Bilgin, Harun Çok, Azamet Cezit, Mehmet Mahir Fersahoğlu, Mustafa Öncel; Ann Coloproctol. 2025;41(6):573-585. Published online December 30, 2025; DOI: https://doi.org/10.3393/ac.2025.00710.0101

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Abstract PDF Supplementary Material: Purpose
Real-world evidence comparing surgical techniques for symptomatic hemorrhoidal disease (HD) remains limited, despite the availability of multiple approaches. This study aimed to evaluate short-term, interim outcomes from a prospective, nationwide cohort study that compared the effectiveness of different operative techniques based on patient-reported outcome measures (PROMs) in patients with symptomatic HD.
Methods
A prospective, nationwide cohort study was conducted at 20 tertiary care centers across Turkiye between July 2022 and July 2024. Adult patients aged 18 years or older with symptomatic HD (grades I–IV) who underwent surgery during this period were included. The choice of procedure was determined by the operating surgeon, and patients were categorized into excisional, fixative, and ablative groups according to the surgical approach used. The primary outcomes were changes in the Hemorrhoidal Disease Symptom Score, Short Health ScaleHD, visual analog scale for pain, and patient satisfaction, assessed from the preoperative period to postoperative day 7 and postoperative week 6.
Results
The study included a total of 315 patients after excluding those who did not fulfil the inclusion criteria. Among them, 239 (78.9%) were male, with a mean age of 43.7±11.7 years. The distribution of patients across surgical groups was 207 (65.7%) in the excisional group, 30 (9.5%) in the fixative group, and 78 (24.8%) in the ablative group. All groups demonstrated significant improvements in PROM scores from preoperative to postoperative assessments. However, no statistically significant differences were observed between groups at any time point for PROM scores or for changes in PROM scores across consecutive evaluations (P≥0.05 for all comparisons). Urinary retention occurred more frequently, and hospital stays were longer in the fixative group (P=0.006 and P<0.001, respectively). The excisional group had a greater need for narcotic use and longer duration of use (P=0.003 and P<0.001, respectively).
Conclusion
This real-world cohort study shows that all 3 surgical approaches are effective for HD, providing comparable short-term symptomatic relief and patient satisfaction. These techniques appear equally valid treatment options, and the choice of procedure may best be individualized based on patient-specific characteristics and surgeon preference. Trial registration: ClinicalTrials.gov identifier: NCT05429060

ERAS

Safety and patient’s satisfaction of preoperative carbohydrate drink until 2 hours before colorectal cancer surgery: a single-center, prospective randomized controlled trial: Yun Min Lee, Kyeong Eui Kim, Sung Uk Bae, Seong Kyu Baek, Woon Kyung Jeong; Ann Coloproctol. 2025;41(6):519-527. Published online December 24, 2025; DOI: https://doi.org/10.3393/ac.2025.00521.0074

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Abstract PDF: Purpose
Traditionally, fasting from midnight has been a standard practice in elective surgery for reduce the risk of aspiration. However, Enhanced Recovery After Surgery (ERAS) programs recommend clear fluid intake until 2 hours before anesthesia. This study aimed to evaluate the safety and patient satisfaction of preoperative carbohydrate drink intake until 2 hours before colorectal cancer surgery.
Methods
Sixty patients who underwent colorectal cancer surgery between April 2021 and February 2023 at Keimyung University Dongsan Medical Center were enrolled. This study included 30 patients who fasted from midnight (nothing by mouth [NPO] group) and 30 patients who consumed a high concentration of complex carbohydrate fluids (New Care NO-NPO) until 2 hours before surgery (No-NPO group). Patient satisfaction was assessed using a visual analog scale. Perioperative and postoperative outcomes were compared.
Results
Basic characteristics of patients were similar for the 2 groups. The No-NPO group had a significantly higher patient satisfaction score than the NPO group (3.7 vs. 2.2, P=0.040). Scores of operative difficulty, operation time, blood loss, postoperative recovery parameters, and postoperative complication rates were similar for the 2 groups. Pathological outcomes were also comparable. No mortality occurred in either group.
Conclusion
High-concentration carbohydrate fluid intake until 2 hours before induction of anesthesia could improve patient satisfaction without increasing postoperative complications, demonstrating its safety and feasibility in colorectal cancer surgery. Trial registration CRIS (cris.nih.go.kr) identifier: KCT0011323.

Complications

Efficacy and safety of novel alginate-based sealants (SEAL-G and SEAL-G MIST) in reducing anastomotic leakage following colorectal anastomosis: a prospective multicenter study: Moshe Kamar, Fahim Kanani, Antonio Spinelli, David Jayne, Lior Segev, Matt Tutton, Isacco Montroni, Hagit Tulchinsky, Mordechai Shimonov, Ron Lavy, Oded Zmora; Ann Coloproctol. 2025;41(5):424-433. Published online October 23, 2025; DOI: https://doi.org/10.3393/ac.2025.00297.0042

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Abstract PDF Supplementary Material

Purpose
This study aimed to evaluate the efficacy, usability, and safety of the novel alginate-based sealants SEAL-G and SEAL-G MIST in reducing anastomotic leakage after colorectal resection.
Methods
This prospective, multicenter study enrolled 160 patients undergoing elective colonic resection with primary anastomosis at 8 centers. SEAL-G was applied in open procedures (n=33), and SEAL-G MIST was used for minimally invasive procedures (n=127), with both sealants applied circumferentially to the anastomotic site. The primary endpoints included the rate of anastomotic coverage and the incidence of leakage within 30 days, classified according to the International Study Group of Rectal Cancer (ISGRC) criteria.
Results
The overall anastomotic leak rate was 3.1% (5 of 160), with only 1 patient (0.6%) experiencing a grade C leak that required reoperation. Four patients (2.5%) developed grade A or B leaks, all of which were managed conservatively. Complete circumferential sealant coverage was achieved in 93.1% of cases. The overall leak rates were 6.1 percent and 2.4 percent, respectively. However, statistical analysis did not show a significant difference. Mean hospital stay was significantly shorter after laparoscopic surgery compared to open surgery (5.1±2.8 days vs. 8.4±5.5 days, P<0.001).
Conclusion
Alginate-based sealants show promise in reducing the severity of anastomotic leaks and in supporting anastomotic healing, demonstrating high technical success and low complication rates. Trial registration: ClinicalTrials.gov identifier: NCT04532515

Citations

Citations to this article as recorded by

Long-Term Safety and Efficacy of Alginate-Based Serosal Reinforcement (SEAL-G/SEAL-G MIST) Following Colorectal Anastomosis: A Multicenter, Comparative and Retrospective Cohort Study
Fahim Kanani, Antonino Spinelli, Mordechai Shimonov, Husam Zbede, Nouha Hinnawi, Ron Lavy, Oded Zmora, Moshe Kamar
Journal of Clinical Medicine.2026; 15(4): 1448. CrossRef

Complications

Effect of oral antibiotic bowel preparation versus no preparation on surgical site infections in elective colorectal surgery: a randomized trial: Kavyashree Mallesh, Rajendran Theakarajan, Balasubramanian G, Prashant Penumadu, Raja Kalayarasan, Rajkumar Nagarajan; Ann Coloproctol. 2025;41(5):393-399. Published online October 20, 2025; DOI: https://doi.org/10.3393/ac.2025.00633.0090

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Abstract PDF

Purpose
Surgical site infections (SSIs) represent a significant cause of morbidity following colorectal surgery. While mechanical bowel preparation combined with oral antibiotics is known to reduce SSIs, the independent effect of oral antibiotics alone remains unclear. This study compared the efficacy of oral antibiotic bowel preparation (OABP) versus no bowel preparation (NBP) in reducing SSIs among patients undergoing elective colorectal surgery.
Methods
A prospective, randomized, double-blinded trial was performed at a tertiary care center in India. Eighty-six patients scheduled for elective colorectal surgery were randomized to receive either OABP (oral ciprofloxacin and metronidazole) or placebo, in addition to standard intravenous antibiotics. The primary outcome was the rate of SSIs. Secondary outcomes included anastomotic leak, length of hospital stay, overall morbidity, and readmission rates.
Results
Baseline characteristics were comparable between the groups. The incidence of SSI was significantly lower in the OABP group compared to the NBP group (14.0% vs. 41.9%, P<0.01). The severity of infections and postoperative complications was also reduced in the OABP group (P<0.01). Although rates of anastomotic leak, readmission, and reoperation were higher in the NBP group, these differences were not statistically significant. The mean duration of hospital stay was shorter for patients in the OABP group (8.09 days vs. 11.28 days, P<0.01). No adverse effects related to oral antibiotics were observed.
Conclusion
OABP without mechanical cleansing significantly reduces SSIs, postoperative morbidity, and length of hospital stay in elective colorectal surgery. This approach is safe and effective, offering a strategy to improve surgical outcomes.

Citations

Citations to this article as recorded by

Bowel Preparation for Colorectal Surgery: Evolution, Evidence, and Contemporary Practice
Rajendran Theakarajan, Subramanian Ashuvanth, Govindarajan Rajagopalan
Indian Journal of Colo-Rectal Surgery.2026; 9(1): 7. CrossRef
Oral antibiotics alone for bowel preparation in colorectal surgery: time to rethink tradition?
Soo Young Lee
Annals of Coloproctology.2025; 41(5): 367. CrossRef

Minimally invasive surgery

Comparative perioperative outcomes of articulated versus conventional straight devices in laparoscopic low anterior resection: a propensity score–matched analysis: Hayoung Lee, Yong Sik Yoon, Young Il Kim, Min Hyun Kim, Jong Lyul Lee, Chan Wook Kim, In Ja Park, Seok-Byung Lim; Ann Coloproctol. 2025;41(5):434-442. Published online October 16, 2025; DOI: https://doi.org/10.3393/ac.2025.00227.0032

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Abstract PDF Supplementary Material: Purpose
Laparoscopic low anterior resection for rectal cancer is technically challenging due to the precision required for mesorectal excision. Articulated instruments were developed to improve precision and oncological safety over conventional instruments. This study compares their perioperative outcomes.
Methods
A retrospective cohort study of 432 patients with colorectal cancer who underwent low anterior resection between August 2022 and February 2024 applied propensity score matching to minimize selection bias. Primary endpoints were circumferential resection margin (CRM), distal resection margin (DRM), and harvested lymph nodes count. Secondary outcomes included postoperative complications.
Results
Following propensity score matching, 84 matched pairs were analyzed. Most patients achieved CRM negativity (>1 mm), with CRM ≥10 mm in 67.9% of the articulated group and 59.5% of the conventional group (P=0.613). Median (interquartile range, IQR) lymph nodes harvests were comparable (20 [14–26] vs. 18 [14–22], P=0.147). The articulated group had a significantly longer DRM (30.0 mm [IQR, 18.0–40.0 mm] vs. 24.0 mm [IQR, 12.0–34.2 mm], P=0.008) and the median operation time (111.0 minutes [IQR, 95.8–125.2 minutes] vs. 99.5 minutes [IQR, 72.0–119.8 minutes], P=0.009). Estimated blood loss, open conversion rates, and postoperative complications, including leakage (7.1% vs. 8.3%, P>0.999) and surgical site infections, (15.5% vs. 9.5%, P=0.383), showed no significant differences.
Conclusion
Articulated laparoscopic instruments demonstrated comparable safety and feasibility to conventional instruments but offered no significant clinical or oncological benefits beyond a longer DRM. Larger studies are needed to evaluate their value in laparoscopic rectal surgery.

Minimally invasive surgery

Expanding the boundaries of minimally invasive surgery: the feasibility of robotic natural orifice transluminal extraction colectomy and robotic no-incision colectomy in colorectal practice: Thalia Petropoulou, Kyriacos Evangelou, Andreas Polydorou; Ann Coloproctol. 2025;41(4):346-353. Published online August 28, 2025; DOI: https://doi.org/10.3393/ac.2025.00647.0092

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Abstract PDF

Purpose
Minimally invasive surgery offers reduced trauma, accelerated recovery, and shorter hospital stays. Robotic technology further enhances laparoscopic precision, particularly in colorectal procedures. This study investigated the safety and effectiveness of robotic natural orifice transluminal extraction colectomy (R-NOTEC) and robotic no-incision colectomy (R-NIC), comparing these techniques to the conventional robotic colectomy.
Methods
Outcomes of patients undergoing robotic-assisted colorectal resection—either conventional robotic colectomy or R-NOTEC/R-NIC—using a single docking technique at a tertiary hospital over 3 years were analyzed. All patients were managed according to established Enhanced Recovery After Surgery protocols.
Results
In total, 100 patients were included, with 25 receiving R-NOTEC or R-NIC. The median age was 65 years (range, 30–82 years), and the median body mass index was 31.0 kg/m2 (range, 20.1–43.0 kg/m2). The median length of stay was significantly shorter in the R-NOTEC/R-NIC group than in the conventional robotic group (2.0 days vs. 3.4 days, P=0.021). Other outcomes, such as circumferential resection margin status, lymph node yield, and mortality, were similar between groups. The R-NOTEC/R-NIC group exhibited a slightly lower complication rate, as well as less opioid use. No conversions to open surgery occurred in either group.
Conclusion
R-NOTEC/R-NIC offer significant promise in colorectal surgery by minimizing trauma, expediting recovery, and maintaining oncologic safety. Nevertheless, these procedures require specialized surgical expertise and careful patient selection. Further research should focus on long-term outcomes and standardization of these techniques.

Citations

Citations to this article as recorded by

Robotic-Assisted Surgery in Emergency General Surgery: A Prospective, Single-Center, Case Series
Thalia Petropoulou, Kyriacos Evangelou, Andreas Polydorou
Cureus.2025;[Epub] CrossRef
Minimally Invasive Versus Conventional Colectomy: Evaluating Clinical Outcomes, Complications, and Recovery in Modern Surgical Practice
Vaseem Akram Vadhooth, Krishnaprasad K, Priyanka L Reddy, Sailesh Kumar S
Cureus.2025;[Epub] CrossRef

Review

Minimally invasive surgery

Comparison of chyle leakage between laparoscopic and open colectomy in patients with colon cancer: a systematic review and meta-analysis: Tharin Thampongsa, Sitanun Saengsri, Pichet Wattanapreechanoni, Chairat Supsamutchai, Chumpon Wilasrusmee, Napaphat Poprom; Ann Coloproctol. 2025;41(4):262-270. Published online August 27, 2025; DOI: https://doi.org/10.3393/ac.2025.00045.0006

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Abstract PDF Supplementary Material: Purpose
Laparoscopic complete mesocolon excision (LCME) for right colonic cancer improves oncological outcomes. This meta-analysis aimed to compare the rate of chylous leakage between laparoscopic and open right colectomy with CME for right-sided colonic cancers.
Methods
A literature search was performed up to February 2022. The primary outcome was the rate of chylous leakage. Secondary outcomes included related surgical and clinical parameters. A meta-analysis was performed to calculate risk ratios.
Results
Eleven studies were included. The rate of postoperative chylous leakage was lower in laparoscopic surgery compared to open surgery (risk ratio, 0.63; 95% confidence interval, 0.33–1.20), although this difference was not statistically significant. LCME showed superior outcomes to open CME (OCME) in secondary outcomes, such as reduced blood loss, increased harvested lymph node count, and decreased overall morbidity.
Conclusion
There was no significant difference between LCME and OCME regarding the rates of chylous leakage, anastomosis leakage, or operative time. However, LCME demonstrated superiority in blood loss reduction, harvested lymph node number, and overall morbidity in patients undergoing surgery for right colon cancer.

Original Articles

ERAS

Predicting venous thromboembolism and determining appropriate prophylaxis in elderly patients undergoing colorectal cancer surgery with Enhanced Recovery After Surgery (ERAS) using the adjusted Caprini score: Young Sun Choi, Hyung Jin Cho, Chul Seung Lee, Dong Geun Lee, Choon Sik Chung, Gwan Cheol Lee, Dong Woo Kang, Jeong Sub Kim, Tae Gyu Kim; Ann Coloproctol. 2025;41(4):279-286. Published online August 26, 2025; DOI: https://doi.org/10.3393/ac.2024.00857.0122

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Abstract PDF Supplementary Material: Purpose
Age and postoperative complications are known risk factors for venous thromboembolism (VTE). Minimally invasive surgery and Enhanced Recovery After Surgery (ERAS) protocol has been implemented to reduce these risks. The purpose of this study was to assess the short- and long-term effects of a VTE prophylaxis program using the Caprini score in elderly patients undergoing minimally invasive colorectal cancer surgery with the ERAS protocol.
Methods
This retrospective cross-sectional study included 1,043 colorectal cancer patients requiring surgery from January 2017 to December 2019, divided into a control group (≤75 years) and an elderly group (>75 years), with 827 and 216 patients, respectively. The primary outcome was the incidence of VTE; secondary outcome was the incidence of postoperative complications, particularly bleeding.
Results
The incidence of VTE was 1.5% in the control group and 3.7% in the elderly group (P=0.061). Five patients (0.5%) experienced symptomatic VTE, and the Caprini score for all VTE patients was ≤8 points; thus, only mechanical prophylaxis was used. In the multivariable logistic regression, the Caprini score (P=0.024) and cancer stage (P=0.004) were selected. The odds ratios (95% confidence interval) of the Caprini score and TNM staging were 1.758 (1.078–2.867) and 6.152 (2.045–26.510), respectively.
Conclusion
When the ERAS protocol was used for patients with colorectal cancer as perioperative care, the VTE risk was lower than that estimated by the Caprini score. Given that age is a recognized risk factor for major bleeding, criteria for the use of anticoagulation to prevent VTE, particularly in elderly patients, should be carefully evaluated, considering both the bleeding risks and the potential benefits of pharmacologic prophylaxis. Trial registration: Clinical Research Information Service (CRIS; cris.nih.go.kr) identifier: KCT0007804

Minimally invasive surgery

Propensity score–matched comparison of robot-assisted rectal cancer surgery using hinotori and da Vinci: Hidetoshi Katsuno, Koji Morohara, Tomoyoshi Endo, Kenji Kikuchi, Kenichi Nakamura, Kazuhiro Matsuo, Takahiko Higashiguchi, Tetsuya Koide, Hiromi Kanai, Satoshi Arakawa, Tsunekazu Hanai, Zenichi Morise; Ann Coloproctol. 2025;41(4):310-318. Published online August 25, 2025; DOI: https://doi.org/10.3393/ac.2025.00136.0019

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Graphical Abstract Abstract PDF

Purpose
The hinotori Surgical Robot System (hereafter “hinotori”) is a novel platform for robot-assisted surgery, while the da Vinci Surgical System (“da Vinci”) remains the field standard. This study compared short-term surgical outcomes of rectal cancer surgery between these systems using propensity score–matched analysis.
Methods
A retrospective analysis was conducted of 209 consecutive patients who underwent robot-assisted surgery with the da Vinci and 58 patients with the hinotori system. After 2:1 propensity score matching, 108 da Vinci and 54 hinotori cases were included. Surgical outcomes, including operative time, blood loss, postoperative complications, length of hospital stay, and pathological findings, were compared.
Results
After matching, the baseline demographics were well balanced between groups. The hinotori system was associated with significantly longer operative time (266 minutes vs. 227 minutes, P=0.014) and console time (156 minutes vs. 110 minutes, P=0.001). However, estimated blood loss and postoperative complication rate did not differ significantly. Pathological findings, including the number of lymph nodes retrieved and the incidence of positive surgical margins, were comparable between systems.
Conclusion
In rectal surgery, the hinotori system demonstrates comparable short-term safety outcomes to da Vinci. Despite longer operative times and limited integrated instrumentation, hinotori‐assisted procedures may be feasible in selected patients. Further research should address long-term oncological outcomes and strategies to improve procedural efficiency.

Citations

Citations to this article as recorded by

Racing toward the future of robot-assisted rectal cancer surgery: a comparative study of hinotori and da Vinci
Sung Uk Bae
Annals of Coloproctology.2025; 41(4): 259. CrossRef

ERAS

The efficacy of mosapride on recovery of intestinal motility after elective colorectal cancer surgery: a randomized controlled trial: Tharin Thampongsa, Bensita Saengsawang, Chairat Supsamutchai, Chumpon Wilasrusmee, Jakrapan Jirasiritham, Puvee Punmeechao, Visarat Palitnonkiat, Napaphat Poprom, Pattawia Choikrua, Pongsasit Singhathas; Ann Coloproctol. 2025;41(3):232-238. Published online June 25, 2025; DOI: https://doi.org/10.3393/ac.2024.00892.0127

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Abstract PDF Supplementary Material: Purpose
Postoperative ileus is the physiologic hypomotility of the gastrointestinal tract that occurs immediately after abdominal surgery. Mosapride citrate is known to enhance gastrointestinal motility. This study aimed to evaluate mosapride’s impact on postoperative ileus and gastrointestinal motility in patients undergoing elective colorectal surgery.
Methods
Forty-four patients with colorectal cancer undergoing surgery at Ramathibodi Hospital between July 2021 and August 2022 were randomly assigned to either a mosapride group or a control group. The mosapride group received 5 mg of mosapride via the enteric route with 50 mL of water 3 times daily, beginning on postoperative day 1, while the control group received 5 mg of a placebo with 50 mL of water on the same schedule. A single investigator, blinded to the treatment assignments in this triple-blind study, evaluated the postoperative time to the first bowel movement and passage of flatus. Secondary outcomes included the time to step diet, length of postoperative hospital stay, and adverse effects.
Results
There were 23 patients in the control group and 21 in the mosapride group. There were no significant differences in baseline patient characteristics between the 2 groups. The mosapride group demonstrated significantly shorter times to the first bowel movement (26 hours vs. 50 hours, P=0.004) and passage of flatus (40 hours vs. 70 hours, P=0.003).
Conclusion
Mosapride significantly improved the recovery of gastrointestinal motility and reduced the length of hospital stay without causing any serious adverse effects in patients undergoing elective colorectal surgery. Trial registration: ClinicalTrials.gov identifier: NCT04905147

Colorectal cancer

How appropriately can generative artificial intelligence platforms, including GPT-4, Gemini, Bing, and Wrtn, answer questions about colon cancer in the Korean language?: Sun Huh; Ann Coloproctol. 2025;41(3):190-197. Published online June 25, 2025; DOI: https://doi.org/10.3393/ac.2024.00122.0017

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Abstract PDF Supplementary Material

Purpose
This study aims to assess the performance of 4 generative artificial intelligence (AI) platforms—Gemini (formerly Bard), Bing, GPT-4, and Wrtn—in answering questions about colon cancer in the Korean language. Two main research questions guided this study. First, which AI platform provides the most accurate answers? Second, can these AI-generated answers be reliably used to educate patients and their families about colon cancer?
Methods
Ten questions selected by the author were posed to the 4 generative AI platforms on February 22, 2024. Two colorectal surgeons in Korea, each with over 20 years of clinical experience, independently evaluated the answers provided by these generative AI platforms.
Results
The generative AI platforms scored an average of 5.5 out of 10 points. Wrtn achieved the highest score at 6 points, followed by GPT-4 and Gemini, each with 5.5, and Bing, scoring 5 points. The weighted κ for inter-rater reliability was 0.597 (P<0.001). The generative AI platforms performed well in explaining the occult blood test for cancer screening, keyhole surgery, and dietary recommendations for cancer prevention. However, they demonstrated significant limitations in answering more complex topics, such as estimating survival rates following surgery, choosing targeted therapy after surgery, and accurately reporting the mortality rate due to colon cancer in Korea.
Conclusion
The findings suggest that using these generative AI platforms as educational resources for patients and their families regarding colon cancer is premature. Further training on colorectal diseases is required before these AI platforms can be considered reliable information sources for the general public in Korea.

Citations

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Expert Review on the Quality of Responses to the Questions of Multiple Myeloma Patients: A Validation Study of the Medical Artificial Intelligence System “Myelobot”
Aleksander Sergeevich Luchinin, O. E. Ochirova, V. G. Potapenko, V. V. Ryabchikova
Clinical Oncohematology.2026; 19(1): 81. CrossRef
Agentic artificial intelligence is the future of cancer detection and diagnosis
Sayedur Rahman, Md. Tanzib Hosain, Nafiz Fahad, Md. Kishor Morol, Md. Jakir Hossen
Array.2026; 29: 100676. CrossRef
Role of Medical Editors in the Age of Generative Artificial Intelligence
Sun Huh
Healthcare Informatics Research.2025; 31(4): 317. CrossRef
Temporal evolution of large language models (LLMs) in oncology
Zilin Qiu, Aimin Jiang, Chang Qi, Wenyi Gan, Lingxuan Zhu, Weiming Mou, Dongqiang Zeng, Mingjia Xiao, Guangdi Chu, Shengkun Peng, Hank Z. H. Wong, Lin Zhang, Hengguo Zhang, Xinpei Deng, Quan Cheng, Bufu Tang, Yaxuan Wang, Jian Zhang, Anqi Lin, Peng Luo
Journal of Translational Medicine.2025;[Epub] CrossRef

Minimally invasive surgery

Minimally invasive transanal excision for rectal tumors: technical feasibility compared to conventional approach: Ji Yeon Mun, Gyu Sung Geong, Nina Yoo, Hyung Jin Kim, Hyeon-Min Cho, Bong-Hyeon Kye; Ann Coloproctol. 2025;41(2):162-168. Published online April 29, 2025; DOI: https://doi.org/10.3393/ac.2024.00864.0123

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Graphical Abstract Abstract PDF Supplementary Material

Purpose
The technique for transanal resection of rectal tumors has evolved from conventional methods to minimally invasive approaches. However, the research comparing long-term results between these approaches is limited.
Methods
Between 2016 and 2022, a total of 133 patients who underwent transanal excision were analyzed. Patients were classified into 2 groups according to surgical approach: conventional transanal approach (CTA) and minimally invasive transanal approach (MTA). Medical records were analyzed to compare surgical and oncological outcomes between the 2 groups.
Results
There were no significant differences observed in patient’s demographics and tumor characteristics, except the MTA group exhibited a statistically longer distance from the anal verge. Although statistical significance was not reached, the MTA group demonstrated a 100% margin-negative rate in contrast to the CTA group, which had worse outcomes for both margin status and fragmentation. Recurrence was observed only in the CTA group containing pT1 rectal cancer and grade 1 neuroendocrine tumor, with negative margins and no fragmentation.
Conclusion
The minimally invasive approach did not demonstrate statistical superiority but showed technical feasibility through the absence of margin-positive cases and the use of the clip handle method. Further studies are needed to validate these findings and assess broader applicability.

Citations

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Minimally invasive transanal excision over conventional transanal excision: pursuing the perfect removal of early rectal cancer
HyungJoo Baik
Annals of Coloproctology.2025; 41(2): 105. CrossRef

Minimally invasive surgery

Impact of single-port laparoscopic approach on scar assessment by patients and observers: a multicenter retrospective study: Sung Uk Bae, Kyeong Eui Kim, Chang-Woo Kim, Ji-Hoon Kim, Woon Kyung Jeong, Yoon-Suk Lee, Seong Kyu Baek, Suk-Hwan Lee, Jun-Gi Kim; Ann Coloproctol. 2025;41(2):154-161. Published online April 29, 2025; DOI: https://doi.org/10.3393/ac.2024.00563.0080

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Abstract PDF

Purpose
This study aimed to compare the wound cosmesis of a single-incision approach on scar assessment after laparoscopic surgery for colon cancer.
Methods
This study included 32 patients undergoing single-port laparoscopic surgery (SPLS) and 61 patients undergoing multiport laparoscopic surgery (MPLS) for colon cancer at 3 tertiary referral hospitals between September 2011 and December 2019. We modified and applied the Korean version of the Patient and Observer Scar Assessment Scale (POSAS) to assess cosmetic outcomes. To assess the interobserver reliability using intraclass correlation coefficient values for the Observer Scar Assessment Scale (OSAS), the surgeons evaluated 5 images of postoperative scars.
Results
No significant differences were observed in the time before the return of normal bowel function, time to sips of water and soft diet initiation, length of in-hospital stay, and postoperative complication rate. The SPLS group had a shorter total incision length than the MPLS group. The POSAS favored the SPLS approach, revealing significant differences in the Patient Scar Assessment Scale (PSAS), OSAS, and overall scores. The SPLS approach was an independent factor influencing the POSAS, PSAS, and OSAS scores. Eleven colorectal surgeons had a significantly substantial intraclass coefficient.
Conclusion
The cosmetic outcomes of SPLS as assessed by the patients and surgeons were superior to those of MPLS in colon cancer. Reducing the number of ports is an independent factor affecting scar assessment by patients and observers.

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Gui H Wang, Jin Y Gang, Yan Li
Cureus.2025;[Epub] CrossRef

Complications

Bedside endoscopic inspection of colorectal anastomoses in the early postoperative period: a 2-center prospective feasibility study: David J. Nijssen, Roel Hompes, Jurriaan Tuynman, Jimme K. Wiggers, Willem A. Bemelman, Saidah Sahid, James Kinross, Wytze Laméris; Ann Coloproctol. 2025;41(2):127-135. Published online April 14, 2025; DOI: https://doi.org/10.3393/ac.2024.00584.0083

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3 Citations

Abstract PDF

Purpose
Early diagnosis of anastomotic leakage (AL) after colorectal surgery can reduce severe postoperative morbidity and ensure successful treatment. This study evaluated the feasibility of bedside endoscopic inspection of the anastomosis early postoperatively using a point-of-care digital rectoscope.
Methods
This prospective study was conducted at 2 tertiary centers. Patients who underwent minimally invasive or open sphincter-preserving surgery with creation of a colorectal or coloanal anastomosis were included. Data were collected from December 2022 to October 2023. Bedside anastomotic inspections were performed postoperative day (POD) 3 to 5 using a point-of-care digital rectoscope. The primary outcome was feasibility, defined as adequate clinical assessment of the anastomosis during bedside inspection. Secondary outcomes included patient tolerability, efficacy compared to other diagnostic methods, and clinical outcomes during 90 days of follow-up.
Results
In total, 35 patients were included. All bedside anastomotic inspections were carried out successfully. The examination showed complete visibility of the entire anastomosis in 30 patients (85.7%), with minimal discomfort reported by 3 (8.6%). No adverse events were recorded. AL occurred in 6 patients (17.1%), with 3 cases detected during bedside inspections between POD 3 and 5. Two leaks were detected without clinical or biochemical suspicion. Three patients with negative rectoscopy between POD 3 and 5 were later diagnosed with AL: 2 by a computed tomography scan and 1 by a bedside rectoscopy.
Conclusion
Bedside inspection of rectal anastomoses early postoperatively is feasible and tolerable for patients. Routine anastomotic inspections can detect early AL even without clear clinical or biochemical signs.

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Is Chronic Pelvic Sepsis Complicating Low Anterior Resection of Rectal Cancer Preventable?
Elroy Weledji
Surgeries.2026; 7(1): 9. CrossRef
Routine Endoscopic Evaluation of Colorectal Anastomoses for Early Detection of Anastomotic Leakage (REAL Study): Protocol for a Multicenter Prospective Study
David J. Nijssen, Wytze Laméris, Quentin Denost, Antonino Spinelli, Eloy Espín-Basany, James Kinross, Jurriaan Tuynman, Roel Hompes
Digestive Surgery.2025; 42(4): 185. CrossRef
Diagnostic accuracy of C-reactive protein in detecting anastomotic leakage after minimally invasive rectal cancer surgery
David J. Nijssen, Mark Broekman, Franny Rensink, Gijs Stuart, Ritch T. J. Geitenbeek, Joost Stael, Susan van Dieren, Willem A. Bemelman, Jurriaan Tuynman, Esther C. J. Consten, Roel Hompes, Wytze Laméris, G. J. D. van Acker, T. S. Aukema, H. J. Belgers, F
Surgical Endoscopy.2025;[Epub] CrossRef

Guideline

ERAS

The 2024 Korean Enhanced Recovery After Surgery (ERAS) guidelines for colorectal cancer: a secondary publication: Kil-yong Lee, Soo Young Lee, Miyoung Choi, Moonjin Kim, Ji Hong Kim, Ju Myung Song, Seung Yoon Yang, In Jun Yang, Moon Suk Choi, Seung Rim Han, Eon Chul Han, Sang Hyun Hong, Do Joong Park, Sang-Jae Park, the Korean Enhanced Recovery After Surgery (ERAS) Committee within the Korean Society of Surgical Metabolism and Nutrition; Ann Coloproctol. 2025;41(1):3-26. Published online February 20, 2025; DOI: https://doi.org/10.3393/ac.2024.00836.0119

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Abstract PDF Supplementary Material

The Korean Enhanced Recovery After Surgery (ERAS) Committee within the Korean Society of Surgical Metabolism and Nutrition was established to develop ERAS guidelines tailored to the Korean context. This guideline focuses on creating the most current evidence-based practice guidelines for ERAS purposes, based on systematic reviews. All key questions targeted randomized controlled trials exclusively, and if fewer than 2 were available, studies employing propensity score matching were also included. Recommendations for each key question were marked with strength of recommendation and level of evidence following internal and external review processes by the committee.

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Quadratus Lumborum Block Versus Transversus Abdominis Plane Block in Laparoscopic Colorectal Surgery: A Systematic Review and Meta-Analysis
Abdullah M. Alharran, Waleed Bader Alazemi, Saad A. Alajmi, Yousiff A. Bahman, Osamah Alhajri, Ali A. Alenezi, Jarrah J. Alenezi, Duaij Salman Saif
Medicina.2026; 62(1): 92. CrossRef
Efficacy of preoperative immunonutrition in malnourished patients undergoing colorectal cancer surgery: a study protocol for a multicenter randomized clinical trial
Soo Young Lee, Chang Hyun Kim, Gi Won Ha, Soo Yeun Park, In Jun Yang, Jin Soo Kim, Gyung Mo Son, Sung Il Kang, Sung Uk Bae
Trials.2025;[Epub] CrossRef
Oral antibiotics alone for bowel preparation in colorectal surgery: time to rethink tradition?
Soo Young Lee
Annals of Coloproctology.2025; 41(5): 367. CrossRef

Original Articles

Colorectal cancer

Comparison of colorectal cancer surgery patients in intensive care between rural and metropolitan hospitals in Australia: a national cohort study: Jessica A. Paynter, Zakary Doherty, Chun Hin Angus Lee, Kirby R. Qin, Janelle Brennan, David Pilcher; Ann Coloproctol. 2025;41(1):68-76. Published online January 24, 2025; DOI: https://doi.org/10.3393/ac.2024.00269.0038

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Abstract PDF Supplementary Material

Purpose
A small proportion of colorectal cancer (CRC) surgical patients will require an admission to an intensive care unit (ICU) within the early postoperative period. This study aimed to compare the characteristics and outcomes of patients admitted to an ICU following CRC surgery per hospital type (metropolitan vs. rural) over a decade in Australia.
Methods
A retrospective cohort analysis was undertaken of all adult patients admitted to a participating Australian ICUs following CRC surgery between January 2011 and December 2021. The primary outcome was in-hospital mortality.
Results
Over the 10-year period, 19,611 patients were treated in 122 metropolitan ICUs and 4,108 patients were treated in 42 rural ICUs. Rural ICUs had a lower proportion of annual admissions following CRC surgery (20 vs. 36, P<0.001). Patients admitted to a rural ICU were more likely to have undergone emergency CRC surgery compared to those admitted to a metropolitan cohort (28.5% vs. 13.8%, P<0.001). There was no difference in in-hospital mortality between metropolitan and rural hospitals (odds ratio [OR], 1.03; 95% confidence interval [CI], 0.73–1.35; P=0.500). There was a general trend for lower mortality in later years of the study with the odds of death in the final year of the study (2021) almost half that of the first study year (OR, 0.52; 95% CI, 0.34–0.80; P=0.003).
Conclusion
There was no difference between in-hospital mortality outcomes for CRC surgical patients requiring ICU admission between metropolitan and rural hospitals. These findings may contribute to discussions regarding rural scope of colorectal practice within Australia and globally.

Citations

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Intensive care unit outcomes and prognostic factors of colorectal cancer
Qian Dong, Rui Xia, Xue-Zhong Xing, Chang-Song Wang, Gang Ma, Hong-Zhi Wang, Biao Zhu, Jiang-Hong Zhao, Dong-Min Zhou, Li Zhang, Ming-Guang Huang, Rong-Xi Quan, Yong Ye, Guo-Xing Zhang, Zheng-Ying Jiang, Bing Huang, Shan-Ling Xu, Yun Xiao, Lin-Lin Zhang,
World Journal of Gastrointestinal Oncology.2025;[Epub] CrossRef

Minimally invasive surgery

Robotic surgery may lead to reduced postoperative inflammatory stress in colon cancer: a propensity score–matched analysis: Eun Ji Park, Gyong Tae Noh, Yong Joon Lee, Min Young Park, Seung Yoon Yang, Yoon Dae Han, Min Soo Cho, Hyuk Hur, Kang Young Lee, Byung Soh Min; Ann Coloproctol. 2024;40(6):594-601. Published online December 6, 2024; DOI: https://doi.org/10.3393/ac.2024.00171.0024

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Abstract PDF Supplementary Material

Purpose
Robot-assisted surgery is readily applied to every type of colorectal surgeries. However, studies showing the safety and feasibility of robotic surgery (RS) have dealt with rectal cancer more than colon cancer. This study aimed to investigate how technical advantages of RS can translate into actual clinical outcomes that represent postoperative systemic response.
Methods
This study retrospectively reviewed consecutive cases in a single tertiary medical center in Korea. Patients with primary colon cancer who underwent curative resection between 2006 and 2012 were included. Propensity score matching was done to adjust baseline patient characteristics (age, sex, body mass index, American Society of Anesthesiologists physical status, tumor profile, pathologic stage, operating surgeon, surgery extent) between open surgery (OS), laparoscopic surgery (LS), and RS groups.
Results
After propensity score matching, there were 66 patients in each group for analysis, and there was no significant differences in baseline patient characteristics. Maximal postoperative leukocyte count was lowest in the RS group and highest in the OS group (P=0.021). Similar results were observed for postoperative neutrophil count (P=0.024). Postoperative prognostic nutritional index was highest in the RS group and lowest in the OS group (P<0.001). The time taken to first flatus and soft diet resumption was longest in the OS group and shortest in the RS group (P=0.001 and P<0.001, respectively). Among all groups, other short-term postoperative outcomes such as hospital stay and complications did not show significant difference, and oncological survival results were similar.
Conclusion
Better postoperative inflammatory indices in the RS group may correlate with their faster recovery of bowel motility and diet resumption compared to LS and OS groups.

Citations

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Open, Laparoscopic, and robotic approaches in colorectal surgery: a comprehensive review with focus on colorectal cancer
Farhad Shafiei, Fatemeh Kani, Nargess Porkar, Maede Mirzaee, Fatemeh Heidarzadeh, Mahdi Kolivand, Soheila Behdad, Amir Shokri
Journal of Robotic Surgery.2026;[Epub] CrossRef
Impact of Preoperative Neutrophil Percentage-to-Albumin Ratio (NPAR) on Short-Term Complications and Long-Term Prognosis in Patients Undergoing Robot-Assisted Laparoscopic Radical Surgery for Colorectal Cancer
Jing Wang, Tao Hu, Nanhui Yu
Journal of Inflammation Research.2026; Volume 19: 1. CrossRef
Übergangsphase zur roboterassistierten Chirurgie beim kolorektalen Karzinom: eine vergleichende konsekutive Kohortenstudie
U. A. Dietz, M. Kalisvaart, S. Maksimovic, R. Frey, M. Ramser, B. M. Erhart, U. Pfefferkorn
Die Chirurgie.2025; 96(11): 942. CrossRef
Comparative clinical efficacy of three surgical modalities for the treatment of malignant tumours of the left hemicolon
Hao Chen, Dong-Ping Han, Jian-Yang Xiong, Zhen-Sheng Li, Teng-Cheng Hu, Zheng-Rong Li, Yi Cao
World Journal of Gastrointestinal Surgery.2025;[Epub] CrossRef
Comparison of the perioperative outcomes of robotic vs. open distal pancreatectomy: a meta-analysis of propensity-score-matched studies
Junjie Wang, Yuanjun Liu, Yakun Wu
Frontiers in Surgery.2025;[Epub] CrossRef
Effectiveness of Guardix-SG in Preventing Postoperative Bowel Complications After Radical Cystectomy: A Single-Arm Prospective Observational Study
Jiwoong Yu, Wan Song, Minyong Kang, Hyun Hwan Sung, Hwang Gyun Jeon, Seong Il Seo, Seong Soo Jeon, Byong Chang Jeong
Journal of Urologic Oncology.2025; 23(3): 253. CrossRef
Laparoscopic surgery should be a viable option for T4 colon cancer: evidence from a propensity score matching analysis
Xiaomei Jiang, Hang Zhou, Zhaoyang Zheng, Xiaodong Wang, Zongguang Zhou, Lie Yang
Updates in Surgery.2025;[Epub] CrossRef

Video

Minimally invasive surgery

Robotic abdominoperineal resection, bilateral robotic groin node dissection and simultaneous perineal gracilis flap reconstruction for locally advanced node-positive anal squamous cell carcinoma: Mohammed Ali, Melanie Holzgang, Vivekanandan Kumar, Dhalia Masud, Sandeep Kapur, Ahmed El-Hadi, Dolly Dowsett, Irshad Shaikh; Ann Coloproctol. 2024;40(6):613-615. Published online December 2, 2024; DOI: https://doi.org/10.3393/ac.2023.00801.0114

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PDF Supplementary Material

Original Article

ERAS

Impact of an Enhanced Recovery After Surgery (ERAS) program on the management of complications after laparoscopic or robotic colectomy for cancer: Victoria Weets, Hélène Meillat, Jacques Emmanuel Saadoun, Marie Dazza, Cécile de Chaisemartin, Bernard Lelong; Ann Coloproctol. 2024;40(5):440-450. Published online September 20, 2024; DOI: https://doi.org/10.3393/ac.2023.00850.0121

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Graphical Abstract Abstract PDF Supplementary Material

Purpose
Enhanced Recovery After Surgery (ERAS) reduces postoperative complications (POCs) after colorectal surgery; however, its impact on the management of POCs remains unclear. This study compared the diagnosis and management of POCs before and after implementing our ERAS protocol after laparoscopic or robotic colectomy for cancer and examined the short- and mid-term oncologic impacts.
Methods
This single-center, retrospective study evaluated all consecutive patients who underwent laparoscopic or robotic colectomy for cancer between 2012 and 2021, focusing on the incidence of POCs within 90 days. We compared outcomes before (standard group) and after (ERAS group) the implementation of our ERAS protocol in January 2016.
Results
Significantly fewer patients in the ERAS group developed POCs (standard vs. ERAS, 136 of 380 patients [35.8%] vs.136 of 660 patients [20.6%]; P<0.01). The ERAS group had a significantly shorter mean total length of stay after POCs (13.1 days vs. 11.4 days, P=0.04), and the rates of life-threatening complications (6.7% vs. 0.7%) and 1-year mortality (7.4% vs. 1.5%) were significantly lower in the ERAS group than in the standard group. Among patients with anastomotic complications, laparoscopic reoperation was significantly more common in the ERAS group than in the standard group (8.3% vs. 75.0%, P<0.01). Among patients with postoperative ileus, the diagnosis and recovery times were significantly shorter in the ERAS group than in the standard group, resulting in a shorter total length of stay (13.5 days vs. 10 days, P<0.01).
Conclusion
The implementation of an ERAS protocol did not eliminate all POCs, but it did accelerate their diagnosis and management and improved patient outcomes.

Citations

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The ultrasonographic measure of postoperative day 2 gastric volume may be a useful tool to improve the management of colorectal surgery patients: results of an ancillary study
Aurélien Venara, Anita Paisant, Julien Gillet, Lise Morgado, Emeline Rebmann, Jean-Francois Hamel
International Journal of Colorectal Disease.2026;[Epub] CrossRef
Perioperative impact of enhanced recovery after surgery (ERAS) for minimally invasive colorectal resection: a systematic review and meta-analysis
Kaiming Wen, Haoyang Wu, Bo-Wen Wu
Journal of Robotic Surgery.2026;[Epub] CrossRef
Less is more: simplifying patient-centered cancer care
In Ja Park
Annals of Coloproctology.2025; 41(3): 173. CrossRef
Research Progress on the Application of ERAS Concept in the Perioperative Period of Colorectal Cancer Patients
梦云孙
Advances in Clinical Medicine.2025; 15(08): 1208. CrossRef
Can Surgical Approach and Postoperative Factors Impact Survival in Rectal Cancer? Robotic Versus Laparoscopic Insights
Ahmed Abdelsamad, Seyidali Mirzazada, Karsten Ridwelski, Mohamad Nour Nasif, Florian Gebauer
Cancer Medicine.2025;[Epub] CrossRef
Optimizing postoperative pain management in minimally invasive colorectal surgery
Soo Young Lee
Annals of Coloproctology.2024; 40(6): 525. CrossRef

Reviews

Minimally invasive surgery

Robotic colorectal surgery training: Portsmouth perspective: Guglielmo Niccolò Piozzi, Sentilnathan Subramaniam, Diana Ronconi Di Giuseppe, Rauand Duhoky, Jim S. Khan; Ann Coloproctol. 2024;40(4):350-362. Published online August 30, 2024; DOI: https://doi.org/10.3393/ac.2024.00444.0063

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Abstract PDF

This study aims to discuss the principles and pillars of robotic colorectal surgery training and share the training pathway at Portsmouth Hospitals University NHS Trust. A narrative review is presented to discuss all the relevant and critical steps in robotic surgical training. Robotic training requires a stepwise approach, including theoretical knowledge, case observation, simulation, dry lab, wet lab, tutored programs, proctoring (in person or telementoring), procedure-specific training, and follow-up. Portsmouth Colorectal has an established robotic training model with a safe stepwise approach that has been demonstrated through perioperative and oncological results. Robotic surgery training should enable a trainee to use the robotic platform safely and effectively, minimize errors, and enhance performance with improved outcomes. Portsmouth Colorectal has provided such a stepwise training program since 2015 and continues to promote and augment safe robotic training in its field. Safe and efficient training programs are essential to upholding the optimal standard of care.

Citations

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Technical proficiency assessment of robotic intracorporeal single-stapling colorectal anastomosis using video-based RA-CUSUM
Shih-Feng Huang, Yung-Lin Tan, Chao-Wen Hsu, Hsin-Ping Tseng, Danilo Miskovic, Chih-Chien Wu
International Journal of Colorectal Disease.2026;[Epub] CrossRef
Robotic-assisted colorectal surgery in colorectal cancer management: a narrative review of clinical efficacy and multidisciplinary integration
Engeng Chen, Li Chen, Wei Zhang
Frontiers in Oncology.2025;[Epub] CrossRef
Entwicklung und Implementation eines strukturierten Ausbildungsprogramms in der robotischen Chirurgie
Sarah Englert, Natascha Tschukewitsch, Alexa Wölfl, Christoph Justinger
Die Chirurgie.2025; 96(9): 765. CrossRef
The evolution of training in robotic colorectal surgery
R. Smyth, N. Francis, S. Vasudevan
Journal of Robotic Surgery.2025;[Epub] CrossRef
Evaluating the Toumai MT‑1000 for urologic surgery: a systematic review and single-arm meta-analysis with remote and on-site experiences
Chi Zhang, Jinwan Wang
Journal of Robotic Surgery.2025;[Epub] CrossRef
A systematic review of comprehensive Robotic-assisted surgical (RAS) curricula
Anna K. Kieslich, Ruari Jardine, Hussain Ibrahim, Areeg Calvert, Kenneth G. Walker, Kim A. Walker, Angus J. M. Watson
Journal of Robotic Surgery.2025;[Epub] CrossRef
From the Editor: Uniting expertise, a new era of global collaboration in coloproctology
In Ja Park
Annals of Coloproctology.2024; 40(4): 285. CrossRef

Translational/basic research

Tissue engineering and regenerative medicine approaches in colorectal surgery: Bigyan B. Mainali, James J. Yoo, Mitchell R. Ladd; Ann Coloproctol. 2024;40(4):336-349. Published online August 30, 2024; DOI: https://doi.org/10.3393/ac.2024.00437.0062

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Abstract PDF

Tissue engineering and regenerative medicine (TERM) is an emerging field that has provided new therapeutic opportunities by delivering innovative solutions. The development of nontraditional therapies for previously unsolvable diseases and conditions has brought hope and excitement to countless individuals globally. Many regenerative medicine therapies have been developed and delivered to patients clinically. The technology platforms developed in regenerative medicine have been expanded to various medical areas; however, their applications in colorectal surgery remain limited. Applying TERM technologies to engineer biological tissue and organ substitutes may address the current therapeutic challenges and overcome some complications in colorectal surgery, such as inflammatory bowel diseases, short bowel syndrome, and diseases of motility and neuromuscular function. This review provides a comprehensive overview of TERM applications in colorectal surgery, highlighting the current state of the art, including preclinical and clinical studies, current challenges, and future perspectives. This article synthesizes the latest findings, providing a valuable resource for clinicians and researchers aiming to integrate TERM into colorectal surgical practice.

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Ana Regina Sampaio, Renata Faria Maia, Maria Camilla Ciardulli, Hélder A. Santos, Bruno Sarmento
Materials Today Bio.2025; 33: 102053. CrossRef
First Successful Regeneration of a Structurally Native‐Like Colon Using a Bioabsorbable Polymer Sheet
Junpei Takashima, Mitsuo Miyazawa, Masayasu Aikawa, Daisuke Fujimoto, Hirotoshi Kobayashi
Annals of Gastroenterological Surgery.2025;[Epub] CrossRef
From the Editor: Uniting expertise, a new era of global collaboration in coloproctology
In Ja Park
Annals of Coloproctology.2024; 40(4): 285. CrossRef

Colorectal cancer

Dissection layer selection based on an understanding of pelvic fascial anatomy in transanal total mesorectal excision: Daichi Kitaguchi, Masaaki Ito; Ann Coloproctol. 2024;40(4):375-383. Published online August 30, 2024; DOI: https://doi.org/10.3393/ac.2024.00178.0025

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3 Citations

Abstract PDF

This study aimed to review the historical transition of rectal cancer surgery and recent evidence regarding transanal total mesorectal excision (TaTME). Additionally, it outlined the anatomical landmarks and technical considerations essential for successful TaTME. Anatomical studies and surgical techniques were analyzed to identify key landmarks and procedural steps crucial for TaTME. TaTME offers improved visibility and maneuverability even in the deep and narrow pelvis and is expected to contribute to tumor radical cure rates. By securing the circumferential resection margin and distal margin while preserving pelvic autonomic nerve function, TaTME holds promise for maintaining postoperative urinary and sexual functions. Key anatomical landmarks include the endopelvic fascia posteriorly, the S4-pelvic splanchnic nerve laterally, and the prostate or posterior vaginal wall anteriorly. Selecting the appropriate dissection layer based on tumor depth and ensuring precise incision of the tendinous arch of the pelvic fascia contributes to successful TaTME outcomes. TaTME represents a significant advancement in rectal cancer surgery, offering improved outcomes through meticulous attention to anatomical detail and precise dissection techniques. Understanding the historical context of rectal cancer surgery alongside recent evidence on TaTME is essential for optimizing patient outcomes and expanding the safe implementation of this innovative approach.

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Impact of Two‐Team Surgery on Short‐ and Long‐Term Outcomes of Transanal Total Mesorectal Excision for Rectal Cancer
Nobuaki Hoshino, Koya Hida, Yukinari Tokoro, Kazutaka Obama, Takeru Matsuda, Ichiro Takemasa, Tomonori Akagi, Masafumi Inomata, Shigenori Homma, Nobuki Ichikawa, Yoshihiro Kakeji, Seiichiro Yamamoto, Takeshi Naitoh
Annals of Gastroenterological Surgery.2025;[Epub] CrossRef
From the Editor: Uniting expertise, a new era of global collaboration in coloproctology
In Ja Park
Annals of Coloproctology.2024; 40(4): 285. CrossRef
Efficacy of Neoadjuvant Hypofractionated Chemoradiotherapy in Elderly Patients with Locally Advanced Rectal Cancer: A Single-Center Retrospective Analysis
Jae Seung Kim, Jaram Lee, Hyeung-min Park, Soo Young Lee, Chang Hyun Kim, Hyeong Rok Kim
Cancers.2024; 16(24): 4280. CrossRef

ERAS

Tolerance to and postoperative outcomes with early oral feeding following elective bowel surgery: a systematic review with meta-analysis: Lord Mvoula, Evelyn Irizarry; Ann Coloproctol. 2024;40(6):538-547. Published online July 31, 2024; DOI: https://doi.org/10.3393/ac.2023.00472.0067

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Abstract PDF

Purpose
Advancements in gastrointestinal surgery have directed attention toward optimizing recovery, including through the use of feeding methods that reduce prolonged postoperative hospital stays, complications, and mortality, among other undesirable outcomes. This study’s primary goals were to identify current peer-reviewed literature reporting the postoperative outcomes of elective bowel surgery and to evaluate the clinical evidence of patients’ tolerance to oral feeding following elective bowel surgery.
Methods
An exhaustive literature search was conducted via PubMed and Scopus. The search results were screened for potential articles, and articles were assessed for eligibility based on prespecified eligibility criteria. The data were synthesized, and the results were reported and discussed thematically.
Results
The database search yielded 1,667 articles, from which 18 randomized controlled trials were chosen for inclusion in this study. This study included 874 early oral feeding (EOF) patients, 865 traditional oral feeding patients, and 91 patients whose postoperative care was unspecified. Data synthesis was done, and meta-analyses were conducted. The results showed that EOF patients required a significantly shorter time to tolerate a solid diet and had shorter hospital stays. In addition, bowel function was restored earlier in EOF groups.
Conclusion
The results show good tolerance to EOF, shorter hospitalizations, and faster restoration of bowel function, suggesting that EOF after elective bowel surgery is relatively safe. However, further studies with similar baseline conditions should be conducted to verify these results.

Citations

Citations to this article as recorded by

Outcomes of patients with cancer receiving early feeding following gastric, small intestinal or colorectal surgery
Thuy Tran, Bach Hoang, Tien Nguyen, Huong Le
World Academy of Sciences Journal.2025; 7(6): 1. CrossRef
Perioperative nutrition practices in gastrointestinal cancer surgery: A nationwide survey among German surgical departments
Rahel Maria Strobel, Katharina Beyer, Johannes Christian Lauscher, Marc Martignoni, Christoph Reißfelder, Tim Vilz, Arved Weimann, Maria Wobith
Langenbeck's Archives of Surgery.2025;[Epub] CrossRef

Original Articles

Minimally invasive surgery

Preoperative localization of potentially invisible colonic lesions on the laparoscopic operation field: using autologous blood tattooing: Ji Yeon Mun, Hyunjoon An, Ri Na Yoo, Hyeon-Min Cho, Bong-Hyeon Kye; Ann Coloproctol. 2024;40(3):225-233. Published online June 19, 2024; DOI: https://doi.org/10.3393/ac.2023.00059.0008

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Graphical Abstract Abstract PDF

Purpose
Preoperative colonoscopic (POC) localization is recommended for patients scheduled for elective laparoscopic colectomy for early colon cancer. Among the various localization method, POC tattooing localization has been widely used. Several dyes have been used for tattooing, but dye has disadvantages, including foreign body reactions. For this reason, we have used autologous blood tattooing for POC localization. This study aimed to evaluate the safety and efficacy of the autologous blood tattooing method.
Methods
This study included patients who required POC localization of the colonic neoplasm among the patients who were scheduled for elective colon resection. The indication for localization was early colon cancer (clinically T1 or T2) or colonic neoplasms that could not be resected endoscopically. POC autologous blood tattooing was performed after saline injection, and 2 hemoclips were applied.
Results
A total of 45 patients who underwent autologous blood tattooing and laparoscopic colectomy were included in this study. All POC localization sites were visible in the laparoscopic view. POC localization sites showed almost perfect agreement with intraoperative surgical findings. There were no complications like bowel perforation, peritonitis, hemoperitoneum, and mesenteric hematoma.
Conclusion
Autologous blood is a safe and effective agent for localizing materials that can replace previous dyes. However, a large prospective case-control study is required for the routine application of this procedure in early colon cancer or colonic neoplasms.

Citations

Citations to this article as recorded by

Meeting report on the 8th Asian Science Editors’ Conference and Workshop 2024
Eun Jung Park
Science Editing.2025; 12(1): 66. CrossRef
Preoperative Localization, Margins, and Intraoperative Endoscopy in Minimally Invasive Sigmoid Colectomy: A Matched Cohort
Chang-Lin Lin, Feng-Fan Chiang, Ming-Cheng Chen, Chun-Yu Lin, Shang-Chih Huang, Ching-Shiang Lin
Journal of Surgical Research.2025; 315: 847. CrossRef

Colorectal cancer

Long-term bowel functional outcomes following anal sphincter-preserving surgery for upper and middle rectal cancer: a single-center longitudinal study: Ahmad Sakr, Seung Yoon Yang, Min Soo Cho, Hyuk Hur, Byung Soh Min, Kang Young Lee, Nam Kyu Kim; Ann Coloproctol. 2024;40(1):27-35. Published online February 28, 2024; DOI: https://doi.org/10.3393/ac.2022.01067.0152

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3 Citations

Abstract PDF

Purpose
Despite advances in neoadjuvant chemoradiotherapy and anal sphincter-preserving surgery for rectal cancer, bowel dysfunction is still unavoidable and negatively affects patients’ quality of life. In this longitudinal study, we aimed to investigate the changes in bowel function with follow-up time and the effect of neoadjuvant chemoradiotherapy on bowel function following low anterior resection for rectal cancer.
Methods
In this study, 171 patients with upper or middle rectal cancer who underwent low anterior resection between 2012 and 2018 were included. Bowel function was assessed longitudinally with Memorial Sloan Kettering Cancer Center Bowel Function Instrument and Wexner scores every 6 months after restoration of bowel continuity. Patients with at least 2 follow-up visits were included.
Results
Overall, 100 patients received neoadjuvant chemoradiotherapy. Urgency, soilage, and fecal incontinence were noted within 24 months in the patients treated with neoadjuvant chemoradiotherapy. After 2 years of follow-up, significant bowel dysfunction and fecal incontinence were observed in the neoadjuvant chemoradiotherapy group. Low tumor level and neoadjuvant chemoradiotherapy were associated with delayed bowel dysfunction.
Conclusion
Neoadjuvant chemoradiotherapy in combination with low tumor level was significantly associated with delayed bowel dysfunction even after 2 years of follow-up. Therefore, careful selection and discussion with patients are paramount.

Citations

Citations to this article as recorded by

Funktionelle Folgen von Radiotherapie, Chemotherapie und Operation bei der Behandlung des Rektumkarzinoms
Philipp Rhode, Matthias Mehdorn, Undine Gabriele Lange, Sebastian Murad Rabe, Johannes Quart, Robert Nowotny, Patrick Sven Plum, Stefan Niebisch, Sigmar Stelzner
Zentralblatt für Chirurgie - Zeitschrift für Allgemeine, Viszeral-, Thorax- und Gefäßchirurgie.2025; 150(04): 353. CrossRef
Efficacy of Neoadjuvant Hypofractionated Chemoradiotherapy in Elderly Patients with Locally Advanced Rectal Cancer: A Single-Center Retrospective Analysis
Jae Seung Kim, Jaram Lee, Hyeung-min Park, Soo Young Lee, Chang Hyun Kim, Hyeong Rok Kim
Cancers.2024; 16(24): 4280. CrossRef
Beyond survival: a comprehensive review of quality of life in rectal cancer patients
Won Beom Jung
Annals of Coloproctology.2024; 40(6): 527. CrossRef

Technical Notes

Can the Heald anal stent help to reduce anastomotic or rectal stump leak in elective and emergency colorectal surgery? A single-center experience: Michael Jones, Brendan Moran, Richard John Heald, John Bunni; Ann Coloproctol. 2024;40(1):82-85. Published online February 26, 2024; DOI: https://doi.org/10.3393/ac.2023.00038.0005

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1 Citations

Abstract PDF

Anastomotic and rectal stump leaks are feared complications of colorectal surgery. Diverting stomas are commonly used to protect low rectal anastomoses but can have adverse effects. Studies have reported favorable outcomes for transanal drainage devices instead of diverting stomas. We describe our use of the Heald anal stent and its potential impact in reducing anastomotic or rectal stump leak after elective or emergency colorectal surgery. We performed a single-center retrospective analysis of patients in whom a Heald anal stent had been used to “protect” a colorectal anastomosis or a rectal stump, in an elective or emergency context, for benign and malignant pathology. Intraoperative and postoperative outcomes were reviewed using clinical and radiological records. The Heald anal stent was used in 93 patients over 4 years. Forty-six cases (49%) had a colorectal anastomosis, and 47 (51%) had an end stoma with a rectal stump. No anastomotic or rectal stump leaks were recorded. We recommend the Heald anal stent as a simple and affordable adjunct that may decrease anastomotic and rectal stump leak by reducing intraluminal pressure through drainage of fluid and gas.

Citations

Citations to this article as recorded by

Techniques in coloproctology - controversies in coloproctology: resection rectopexy is an underutilised procedure in the management of both symptomatic high-grade internal and external rectal prolapse
J. Bunni, E. D. Courtney
Techniques in Coloproctology.2026;[Epub] CrossRef

Minimally invasive surgery

Robotic natural orifice specimen extraction surgery (NOSES) for anterior resection: Toan Duc Pham, Tomas Larach, Bushra Othman, Amrish Rajkomar, Alexander G. Heriot, Satish K. Warrier, Philip Smart; Ann Coloproctol. 2023;39(6):526-530. Published online December 19, 2023; DOI: https://doi.org/10.3393/ac.2022.00458.0065

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4 Web of Science
4 Citations

Abstract PDF Supplementary Material

Minimally invasive colorectal surgery is currently well-accepted, with open techniques being reserved for very difficult cases. Laparoscopic colectomy has been proven to have lower mortality, complication, and ostomy rates; a shorter median length of stay; and lower overall costs when compared to its open counterpart. This trend is seen in both benign and malignant indications. Natural orifice specimen extraction surgery (NOSES) in colorectal surgery was first described in the early 1990s. Three recent meta-analyses comparing transabdominal extraction against NOSES concluded that NOSES was superior in terms of overall postoperative complications, recovery of gastrointestinal function, postoperative pain, aesthetics, and hospital stay. However, NOSES was associated with a longer operative time. Herein, we present our technique of robotic NOSES anterior resection using the da Vinci Xi platform in diverticular disease and sigmoid colon cancers.

Citations

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Laparoscopic natural orifice specimen extraction for diverticular disease: a systematic review
Jasmine Mui, Mina Sarofim, Ernest Cheng, Andrew Gilmore
Surgical Endoscopy.2025; 39(5): 3049. CrossRef
Current Application Status and Innovative Development of Surgical Robot
Aimin Jiang, Zhao Tang, Hanzhong Zhang, Jinxin Li, Jialin Meng, Ying Liu, Yu Fang, Juan Lu, Xu Zhang, Le Qu, Anqi Lin, Linhui Wang
Med Research.2025; 1(3): 378. CrossRef
Precision and Power: A Comprehensive Review of Exploring the Role of Laser Treatment in Hemorrhoidal Management
Dheeraj Surya, Pankaj Gharde
Cureus.2024;[Epub] CrossRef
Beyond survival: a comprehensive review of quality of life in rectal cancer patients
Won Beom Jung
Annals of Coloproctology.2024; 40(6): 527. CrossRef

Reviews

Colorectal cancer

Essential anatomy for lateral lymph node dissection: Yuichiro Yokoyama, Hiroaki Nozawa, Kazuhito Sasaki, Koji Murono, Shigenobu Emoto, Hiroyuki Matsuzaki, Shinya Abe, Yuzo Nagai, Yuichiro Yoshioka, Takahide Shinagawa, Hirofumi Sonoda, Daisuke Hojo, Soichiro Ishihara; Ann Coloproctol. 2023;39(6):457-466. Published online December 8, 2023; DOI: https://doi.org/10.3393/ac.2023.00164.0023

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6 Citations

Abstract PDF

In Western countries, the gold-standard therapeutic strategy for rectal cancer is preoperative chemoradiotherapy (CRT) following total mesorectal excision (TME), without lateral lymph node dissection (LLND). However, preoperative CRT has recently been reported to be insufficient to control lateral lymph node recurrence in cases of enlarged lateral lymph nodes before CRT, and LLND is considered necessary in such cases. We performed a literature review on aspects of pelvic anatomy associated with rectal surgery and LLND, and then combined this information with our experience and knowledge of pelvic anatomy. In this review, drawing upon research using a 3-dimensional anatomical model and actual operative views, we aimed to clarify the essential anatomy for LLND. The LLND procedure was developed in Asian countries and can now be safely performed in terms of functional preservation. Nonetheless, the longer operative time, hemorrhage, and higher complication rates with TME accompanied by LLND than with TME alone indicate that LLND is still a challenging procedure. Laparoscopic or robotic LLND has been shown to be useful and is widely performed; however, without a sufficient understanding of anatomical landmarks, misrecognition of vessels and nerves often occurs. To perform safe and accurate LLND, understanding the landmarks of LLND is essential.

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da Vinci robotic-assisted micro-space dissection and autonomic nerve network preservation technique in the total mesorectal excision procedure for rectal cancer: a single-center, retrospective, observational, real-world study
Fanghai Han, Yequan Xie, Guangyu Zhong, Jintao Zeng, Yang Chen, Jianan Tan, Shengning Zhou
Journal of Robotic Surgery.2025;[Epub] CrossRef
Learning curve for lateral lymph node dissection in rectal cancer – a systematic review of literature
D. Kehagias, L. Baldari, E. Cassinotti, L. Boni, C. Lampropoulos, I. Kehagias
Techniques in Coloproctology.2025;[Epub] CrossRef
Deep learning-based vessel and nerve recognition model for lateral lymph node dissection: a retrospective feasibility study
Shoma Sasaki, Daichi Kitaguchi, Tomohiro Noda, Hiroki Matsuzaki, Hiro Hasegawa, Nobuyoshi Takeshita, Masaaki Ito
Langenbeck's Archives of Surgery.2025;[Epub] CrossRef
Clinical implications of radiologic criteria and prognostic factors for lateral lymph node metastasis in low rectal cancer
Gyung Mo Son
Annals of Coloproctology.2025; 41(6): 489. CrossRef
The role of lateral pelvic lymph node dissection in advanced rectal cancer: a review of current evidence and outcomes
Gyu-Seog Choi, Hye Jin Kim
Annals of Coloproctology.2024; 40(4): 363. CrossRef
Dissection layer selection based on an understanding of pelvic fascial anatomy in transanal total mesorectal excision
Daichi Kitaguchi, Masaaki Ito
Annals of Coloproctology.2024; 40(4): 375. CrossRef

Benign bowel disease

Multimodal prerehabilitation for elderly patients with sarcopenia in colorectal surgery: Jingting Wu, Hannah Chi, Shawn Kok, Jason M.W. Chua, Xi-Xiao Huang, Shipin Zhang, Shimin Mah, Li-Xin Foo, Hui-Yee Peh, Hui-Bing Lee, Phoebe Tay, Cherie Tong, Jasmine Ladlad, Cheryl H.M. Tan, Nathanelle Khoo, Darius Aw, Cheryl X.Z. Chong, Leonard M.L. Ho, Sharmini S. Sivarajah, Jialin Ng, Winson J.H. Tan, Fung-Joon Foo, Bin-Tean Teh, Frederick H. Koh; Ann Coloproctol. 2024;40(1):3-12. Published online March 31, 2023; DOI: https://doi.org/10.3393/ac.2022.01207.0172

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39 Citations

Abstract PDF

Sarcopenia, which is characterized by progressive and generalized loss of skeletal muscle mass and strength, has been well described to be associated with numerous poor postoperative outcomes, such as increased perioperative mortality, postoperative sepsis, prolonged length of stay, increased cost of care, decreased functional outcome, and poorer oncological outcomes in cancer surgery. Multimodal prehabilitation, as a concept that involves boosting and optimizing the preoperative condition of a patient prior to the upcoming stressors of a surgical procedure, has the purported benefits of reversing the effects of sarcopenia, shortening hospitalization, improving the rate of return to bowel activity, reducing the costs of hospitalization, and improving quality of life. This review aims to present the current literature surrounding the concept of sarcopenia, its implications pertaining to colorectal cancer and surgery, a summary of studied multimodal prehabilitation interventions, and potential future advances in the management of sarcopenia.

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Physical exercise set as part of multimodal prehabilitation plan in patients with gynecological cancer undergoing abdominal cytoreductive surgery
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Gen Tsujio, Shoichi Manabe, Akio Shiomi, Yusuke Tanaka, Shunsuke Kasai, Tadahiro Kojima, Takahiro Igaki, Yukihiro Mori, Akifumi Notsu
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The effect of sarcopenia on postoperative adverse events after endoscopic submucosal dissection for early gastrointestinal cancer
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Scandinavian Journal of Gastroenterology.2026; 61(1): 36. CrossRef
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A. Srinivasan, K. M. Yi, D. Sharma, S. K. Mantoo
Techniques in Coloproctology.2026;[Epub] CrossRef
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European Journal of Clinical Nutrition.2025; 79(4): 358. CrossRef
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Yuki Hirase, Takaaki Arigami, Daisuke Matsushita, Masataka Shimonosono, Yusuke Tsuruda, Ken Sasaki, Kenji Baba, Yota Kawasaki, Takao Ohtsuka
Langenbeck's Archives of Surgery.2024;[Epub] CrossRef
Get Fit: Muscle Health for Crohn’s Disease Surgical Outcome Optimization
Sara Massironi, Pierpaolo Sileri, Silvio Danese
Inflammatory Bowel Diseases.2023;[Epub] CrossRef
Recommendations on the use of prehabilitation, i.e. comprehensive preparation of the patient for surgery
Tomasz Banasiewicz, Jarosław Kobiela, Jarosław Cwaliński, Piotr Spychalski, Patrycja Przybylska, Karolina Kornacka, Dagmara Bogdanowska-Charkiewicz, Magdalena Leyk-Kolańczak, Maciej Borejsza-Wysocki, Dominika Batycka-Stachnik, Rafał Drwiła
Polish Journal of Surgery.2023; 95(4): 62. CrossRef

Original Article

Colorectal cancer

Partial mesorectal excision can be a primary option for middle rectal cancer: a propensity score–matched retrospective analysis: Ee Jin Kim, Chan Wook Kim, Jong Lyul Lee, Yong Sik Yoon, In Ja Park, Seok-Byung Lim, Chang Sik Yu, Jin Cheon Kim; Ann Coloproctol. 2024;40(3):253-267. Published online March 31, 2023; DOI: https://doi.org/10.3393/ac.2022.00689.0098

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Abstract PDF

Purpose
Although partial mesorectal excision (PME) and total mesorectal excision (TME) is primarily indicated for the upper and lower rectal cancer, respectively, few studies have evaluated whether PME or TME is more optimal for middle rectal cancer.
Methods
This study included 671 patients with middle and upper rectal cancer who underwent robot-assisted PME or TME. The 2 groups were optimized by propensity score matching of sex, age, clinical stage, tumor location, and neoadjuvant treatment.
Results
Complete mesorectal excision was achieved in 617 of 671 patients (92.0%), without showing a difference between the PME and TME groups. Local recurrence rate (5.3% vs. 4.3%, P>0.999) and systemic recurrence rate (8.5% vs. 16.0%, P=0.181) also did not differ between the 2 groups, in patients with middle and upper rectal cancer. The 5-year disease-free survival (81.4% vs. 74.0%, P=0.537) and overall survival (88.0% vs. 81.1%, P=0.847) also did not differ between the PME and TME groups, confined to middle rectal cancer. Moreover, 5-year recurrence and survival rates were not affected by distal resection margins of 2 cm (P=0.112) to 4 cm (P>0.999), regardless of pathological stages. Postoperative complication rate was higher in the TME than in the PME group (21.4% vs. 14.5%, P=0.027). Incontinence was independently associated with TME (odds ratio [OR], 2.009; 95% confidence interval, 1.015–3.975; P=0.045), along with older age (OR, 4.366, P<0.001) and prolonged operation time (OR, 2.196; P=0.500).
Conclusion
PME can be primarily recommended for patients with middle rectal cancer with lower margin of >5 cm from the anal verge.

Citations

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Review of definition and treatment of upper rectal cancer
Elias Karam, Fabien Fredon, Yassine Eid, Olivier Muller, Marie Besson, Nicolas Michot, Urs Giger-Pabst, Arnaud Alves, Mehdi Ouaissi
Surgical Oncology.2024; 57: 102145. CrossRef
Tumour-specific mesorectal excision for rectal cancer: Systematic review and meta-analysis of oncological and functional outcomes
Fabio Carbone, Wanda Petz, Simona Borin, Emilio Bertani, Stefano de Pascale, Maria Giulia Zampino, Uberto Fumagalli Romario
European Journal of Surgical Oncology.2023; 49(11): 107069. CrossRef

Reviews

Optimal anastomotic technique in rectal surgery to prevent anastomotic leakage: Daichi Kitaguchi, Masaaki Ito; Ann Coloproctol. 2023;39(2):97-105. Published online January 3, 2023; DOI: https://doi.org/10.3393/ac.2022.00787.0112

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18 Citations

Abstract PDF

Complications after colorectal surgery remain inevitable, and anastomotic leakage is one of the most severe and potentially fatal complications. Generally, anastomotic leakage is associated with severe peritonitis, the need for emergency reoperation, and an increased mortality rate. Additionally, particularly after rectal cancer surgery, it has a negative impact on long-term outcomes, including postoperative anorectal function, local recurrence, and survival. To prevent anastomotic leakage, understanding the characteristics of each anastomotic technique and establishing a stable anastomotic procedure are important. Transanal total mesorectal excision (TaTME) is a relatively new advanced surgical access technique for pelvic dissection and facilitates different anastomotic techniques without the need for transabdominal rectal transection. Especially, stapled anastomosis in TaTME, also known as double purse-string circular stapled anastomosis or the single stapling technique (SST), has gained much attention as an alternative to the conventional double stapling technique (DST). In this article, we describe the DST, SST, and hand-sewn anastomosis as anastomotic techniques after rectal surgery, focusing mainly on the differences between conventional anastomotic techniques and SST in TaTME. Furthermore, the blood flow evaluation method for the reconstructive colon before anastomosis, which is extremely important in anastomotic leakage prevention regardless of the anastomotic type, is also described.

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Neutrophil-to-lymphocyte ratio as an early predictor of anastomotic leakage after rectal cancer surgery
Yingjun Liu, Bing Han, Weifeng Xu, Youcai Wang, Mingke Huo, Jianwei Wang, Hongli Wang, Zhi Li
Surgery.2026; 190: 109829. CrossRef
Delayed Diagnosis of Anastomotic Leak and Failure to Rescue After Colon Resection
Samantha L. Savitch, Kiran H. Lagisetty, Pasithorn A. Suwanabol
JAMA Surgery.2026;[Epub] CrossRef
Incidence and risk factors for anastomotic leakage after transanal total mesorectal excision in a retrospective cohort of 212 patients
Bartosz Kapturkiewicz, Michal Kazanowski, Pawel Lesiak, David Ramsey, Marek Bebenek
Scientific Reports.2026;[Epub] CrossRef
Optimizing outcomes in anastomotic recurrence of rectal cancer: Efficacy of transanal total mesorectal excision
Mengqin Yu, Ximo Xu, Hao Zhong, Duohuo Shu, Naijipu Abuduaini, Jingyi Liu, Zhenfeng Huang, Haiqin Song, Sen Zhang, Xiao Yang, Zhenghao Cai, Gaojian Cao, Jianwen Li, Bo Feng
Current Problems in Surgery.2025; 66: 101748. CrossRef
Sphincter-preserving surgical techniques in low rectal cancer management: A systematic review of contemporary evidence
Song Wang, A-Jian Li, Hui-Hong Jiang, Yin Lin, Hai-Bo Ding
World Journal of Gastrointestinal Surgery.2025;[Epub] CrossRef
The robotic intracorporeal single-stapled anastomosis (RiSSA) technique in robotic left-sided colorectal resection: a technical note
Chih-Chien Wu, Yung-Lin Tan, Chao-Wen Hsu, Hsin-Ping Tseng, Danilo Miskovic, Shih-Feng Huang
Annals of Coloproctology.2025; 41(4): 357. CrossRef
Achieving the perfect end-to-end single-stapled anastomosis in low anterior resection for rectal cancer: technical aspects
Cherylin Wan Pei Fu
Annals of Coloproctology.2025; 41(4): 361. CrossRef
Comparative perioperative outcomes of articulated versus conventional straight devices in laparoscopic low anterior resection: a propensity score–matched analysis
Hayoung Lee, Yong Sik Yoon, Young Il Kim, Min Hyun Kim, Jong Lyul Lee, Chan Wook Kim, In Ja Park, Seok-Byung Lim
Annals of Coloproctology.2025; 41(5): 434. CrossRef
Dissection layer selection based on an understanding of pelvic fascial anatomy in transanal total mesorectal excision
Daichi Kitaguchi, Masaaki Ito
Annals of Coloproctology.2024; 40(4): 375. CrossRef
Successful Clinical Avoidance of Colorectal Anastomotic Leakage through Local Decontamination
Gerhard Ernst Steyer, Markus Puchinger, Johann Pfeifer
Antibiotics.2024; 13(1): 79. CrossRef
Combined Robotic Transanal Transection Single-Stapled Technique in Ultralow Rectal Endometriosis Involvement Associated With Parametrial and Vaginal Infiltration
Gianmarco D'Ancona, Benjamin Merlot, Quentin Denost, Stefano Angioni, Thomas Dennis, Horace Roman
Journal of Minimally Invasive Gynecology.2024; 31(4): 267. CrossRef
Risk factors for the failure of endoscopic balloon dilation to manage anastomotic stricture from colorectal surgery: retrospective cohort study
Young Il Kim, Seung Wook Hong, Seok-Byung Lim, Dong-Hoon Yang, Eon Bin Kim, Min Hyun Kim, Chan Wook Kim, Jong Lyul Lee, Yong Sik Yoon, In Ja Park, Chang Sik Yu
Surgical Endoscopy.2024; 38(4): 1775. CrossRef
The impact of powered circular staplers on anastomotic leak in left-sided colorectal cancer surgeries
Hayoung Lee, Yong Sik Yoon, Young Il Kim, Eun Jung Park, Min Hyun Kim, Jong Lyul Lee, Chan Wook Kim, In Ja Park, Seok-Byung Lim
Surgical Endoscopy.2024; 38(10): 6111. CrossRef
Effect of powered circular stapler in colorectal anastomosis after left-sided colic resection: systematic review and meta-analysis
Andrea Scardino, Carlo Galdino Riva, Luca Sorrentino, Sara Lauricella, Alberto Aiolfi, Matteo Rottoli, Gianluca Bonitta, Marco Vitellaro, Luigi Bonavina, Davide Bona, Michael Kelly, Emanuele Rausa
International Journal of Colorectal Disease.2024;[Epub] CrossRef
Early detection of anastomotic leakage in colon cancer surgery: the role of early warning score and C-reactive protein
Gyung Mo Son
Annals of Coloproctology.2024; 40(5): 415. CrossRef
Optimal Indocyanine Green Dosage for Repetitive Angiography for Laparoscopic Colorectal Surgery
Gyung Mo Son, Sang-Ho Park, Nam Su Kim, Mi Sook Yun, In Young Lee, Myeong-Sook Kwon, Tae Kyun Kim, Eun Hwa Lee, Eun Jung Hwang, Kwang-Ryul Baek
Medicina.2024; 60(12): 1966. CrossRef
The Safe Values of Quantitative Perfusion Parameters of ICG Angiography Based on Tissue Oxygenation of Hyperspectral Imaging for Laparoscopic Colorectal Surgery: A Prospective Observational Study
Gyung Son, Armaan Nazir, Mi Yun, In Lee, Sun Im, Jae Kwak, Sang-Ho Park, Kwang-Ryul Baek, Ines Gockel
Biomedicines.2023; 11(7): 2029. CrossRef
Impact of Postoperative Naples Prognostic Score to Predict Survival in Patients with Stage II–III Colorectal Cancer
Su Hyeong Park, Hye Seung Woo, In Kyung Hong, Eun Jung Park
Cancers.2023; 15(20): 5098. CrossRef

Colorectal cancer

Outcomes of redo for failed colorectal or coloanal anastomoses: a systematic review and meta-analysis: Ricardo Purchio Galletti, Gabriel Andrade Agareno, Lucas de Abreu Sesconetto, Rafael Benjamim Rosa da Silva, Rafael Vaz Pandini, Lucas Soares Gerbasi, Victor Edmond Seid, Sérgio Eduardo Alonso Araujo, Francisco Tustumi; Ann Coloproctol. 2023;39(5):375-384. Published online December 20, 2022; DOI: https://doi.org/10.3393/ac.2022.00605.0086

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Abstract PDF Supplementary Material

Purpose
This study aimed to review the outcomes of redo procedures for failed colorectal or coloanal anastomoses.
Methods
A systematic review was performed using the PubMed, Embase, Cochrane, and LILACS databases. The inclusion criteria were adult patients undergoing colectomy with primary colorectal or coloanal anastomosis and studies that assessed the postoperative results. The protocol is registered in PROSPERO (No. CRD42021267715).
Results
Eleven articles met the eligibility criteria and were selected. The studied population size ranged from 7 to 78 patients. The overall mortality rate was 0% (95% confidence interval [CI], 0%–0.01%). The postoperative complication rate was 40% (95% CI, 40%–50%). The length of hospital stay was 13.68 days (95% CI, 11.3–16.06 days). After redo surgery, 82% of the patients were free of stoma (95% CI, 75%–90%), and 24% of patients (95% CI, 0%–39%) had fecal incontinence. Neoadjuvant chemoradiotherapy (P=0.002) was associated with a lower probability of being free of stoma in meta-regression.
Conclusion
Redo colorectal and coloanal anastomoses are strategies to restore colonic continuity. The decision to perform a redo operation should be based on a proper evaluation of the morbidity and mortality risks, the probability of remaining free of stoma, the quality of life, and a functional assessment.

Citations

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Abdominoperineal pull-through with delayed coloanal anastomosis for pelvic anastomotic failure—a systematic review
T. J. K. Tan, S.-M. Ng, T. S. Q. Lee, E. K.-W. Tan, I. Seow-En
Techniques in Coloproctology.2025;[Epub] CrossRef
Laparoscopic redo endorectal pull‐through procedure for complex rectovaginal fistula after rectal resection for endometriosis: A Video Vignette
Sergio Eduardo Alonso Araujo, Francisco Tustumi, Ana Sarah Portilho, Lucas de Araujo Horcel, Victor Edmond Seid
Colorectal Disease.2023; 25(11): 2284. CrossRef

Inflammatory bowel diseases

Colorectal surgical management of colitis induced by vasculitis in the absence of inflammatory bowel disease: a case report and literature review: Jessica A. Paynter, Kirby R. Qin, Georgia Seamer, Ruchira Fernando, Janelle Brennan, Chun Hin Angus Lee; Ann Coloproctol. 2023;39(3):193-203. Published online November 16, 2022; DOI: https://doi.org/10.3393/ac.2022.00584.0083

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Abstract PDF

Colitis caused by vasculitis is a rare and poorly understood pathology. Little evidence exists on its clinical presentation, path to diagnosis, and surgical management. In this report, we present a case report and literature review. A healthy 20-year-old male patient presented with hemorrhagic colitis requiring total colectomy with end ileostomy. Pathological examination showed pancolitis with multiple ulcers, transmural inflammation, hemorrhage, and microvascular thrombosis. Extensive serological testing revealed elevated cytoplasmic antineutrophil cytoplasmic antibody (c-ANCA) and eosinophilia, leading to a diagnosis of eosinophilic granulomatosis with polyangiitis (EGPA) and vasculitis-induced colitis. A literature review was subsequently conducted. Nineteen studies were found documenting vasculitis-induced colitis in the absence of inflammatory bowel disease (IBD). Systemic signs of vasculitis, hemorrhagic colitis, and progression to fulminant colitis were present. Of all patients, 40.0% required colorectal surgery and 62.5% of those patients received a stoma; 25% underwent emergency surgery following failed immunosuppression. All cases relied on clinical correlation with serology and/or histopathology to reach a final diagnosis. We report a case of vasculitis-induced colitis caused by c-ANCA−positive EGPA. The review shows that vasculitis-induced colitis without IBD is an important differential that clinicians should be aware of in patients presenting with colitis.

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Systemic Lupus Erythematosus Vasculitis Causing Perforation Peritonitis in Miliary Tuberculosis: A Disease in Disguise
Soumyajit Jana, Monika Gureh, Ankur Cheleng, Ayush Vardhan
Cureus.2025;[Epub] CrossRef

Original Articles

Annual long-term functional outcomes after transanal repair for symptomatic rectocele: Akira Tsunoda, Hiroshi Kusanagi; Received April 22, 2022 Accepted July 7, 2022 Published online November 15, 2022; DOI: https://doi.org/10.3393/ac.2022.00283.0040 [Epub ahead of print]

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3 Citations

Abstract PDF

Purpose
This study was performed to assess the long-term annual functional outcomes and quality of life (QOL) after transanal rectocele repair.
Methods
We evaluated retrospectively collected data from patients who underwent transanal repair for symptomatic rectocele between February 2012 and December 2018. The Constipation Scoring System (CSS), the Fecal Incontinence Severity Index (FISI), and several QOL questionnaires (e.g., the Patient Assessment of Constipation-QOL [PAC-QOL], Fecal Incontinence QOL, and the 36-Item Short Form Survey [SF-36]) were administered before surgery and annually after surgery. Additionally, physiological assessments and defecography were performed before and after surgery. Substantial symptom improvement, indicated by at least a 50% reduction in the CSS or FISI score, was evaluated postoperatively. All postoperative follow-up results were compared with the preoperative data.
Results
Thirty-two patients were included in the study. The median follow-up period was 5 years (range, 0.5−7 years). Postoperative defecography showed that the rectocele size significantly decreased (P<0.0001). However, the physiological assessment did not reveal postoperative changes. The CSS score 1 year after surgery was significantly lower than the preoperative score (P<0.0001) and remained significantly low until the long-term follow-up. Constipation improved by more than 80% 2 to 5 years postoperatively, and fecal incontinence improved in 2/3 of the patients after 5 years. The PAC-QOL scores significantly improved (all P<0.05) over time until the 3-year and long-term follow-ups, and 6 of the 8 SF-36 scores significantly improved at specific points postoperatively.
Conclusion
Transanal rectocele repair provides long-term improvement for constipation and constipation-specific QOL.

Citations

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IUGA Opinion Paper on Obstructed Defecation: Management of Clinical and Proctographic Rectoceles
Suneetha Rachaneni, Hans Peter Dietz, Pallavi Latthe, Annie Sirany, Anna Spivak, Anupreet Dua
International Urogynecology Journal.2026; 37(1): 75. CrossRef
Transvaginal repair of rectocele for obstructed defecation syndrome: a case report
Liman Zhang, Jie Yang, Qiang Wang, Lili Wang, Shuzhen Su, Lifang Wang, Shiyuan Li
Journal of Surgical Case Reports.2025;[Epub] CrossRef
Laparoscopic or transanal repair of rectocele? Comparison of a reduction in rectocele size
Akira Tsunoda, Tomoko Takahashi, Satoshi Matsuda, Hiroshi Kusanagi
International Journal of Colorectal Disease.2023;[Epub] CrossRef

Anorectal physiology & pelvic floor disorder

Does transanal endoscopic microsurgery affect rectal function?: Evgeniy Khomyakov, Stanislav Chernyshov, Oksana Fomenko, Evgeny Rybakov; Ann Coloproctol. 2023;39(4):326-331. Published online November 14, 2022; DOI: https://doi.org/10.3393/ac.2022.00220.0031

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Abstract PDF

Purpose
Transanal endoscopic microsurgery (TEM) is the most standardized method for the local excision of rectal neoplasms. Unfortunately, local excisions of rectal lesions by means of TEM are not completely free from undesirable functional sequela. This study was performed to evaluate the risk factors of major loss of function after TEM.
Methods
Eighty-nine patients underwent TEM between 2019 and 2020. Anorectal manometry was performed before the surgery and 3, 6, and 12 months after the surgery. The quality of life (QoL) was assessed using the Fecal Incontinence Quality of Life scale.
Results
The major decrease in QoL was observed in women in 3 months after the surgery in terms of lifestyle and frustration domains (3.6 and 3.64 points, respectively). In 3 months after the surgery, there was a significant decrease in resting pressure both in male and female patients (P=0.01). This difference remained significant 6 months after the surgery (P=0.01). In 12 months after the surgery, resting pressure returned to the preoperative level in most patients (P=0.50). A significant decrease in manometric parameters appeared when the surgery time is more than 55 minutes (P=0.05), the tumor localization is lower than 3 cm from the anus (P=0.03), and the tumor size is over 3 cm (P=0.001).
Conclusion
The most significant risk factors for the development of functional disorders after TEM are surgery time of >55 minutes, tumor localization at <3 cm from the anal verge, and tumor size of >3 cm.

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For Early Rectal Neoplasms, the Time Has Come to Move Beyond the Transanal Minimally Invasive Surgery Era: Endoscopic Submucosal Dissection Is No Longer the Challenger—It Is the Standard to Beat
Jeremie Jacques, Jon Steingrimsson
Gastroenterology.2026; 170(1): 14. CrossRef
Beyond survival: a comprehensive review of quality of life in rectal cancer patients
Won Beom Jung
Annals of Coloproctology.2024; 40(6): 527. CrossRef

Colorectal cancer

Recurrence following transanal total mesorectal excision for rectal cancer: a monocentric retrospective series of technically difficult cases: Jonathan Frigault, Geneviève Morin, Sébastien Drolet, Philippe Bouchard, Alexandre Bouchard, Thanh-Quan Philips Ngo, François Letarte; Ann Coloproctol. 2023;39(4):332-341. Published online November 14, 2022; DOI: https://doi.org/10.3393/ac.2022.00178.0025

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Abstract PDF: Purpose
Transanal total mesorectal excision (TaTME) has been proposed to overcome surgical difficulties encountered during rectal resection, especially for patients having high body mass index or low rectal cancer. The aim of this study was to evaluate oncologic outcomes following TaTME.
Methods
This retrospective study included all consecutive patients with rectal cancer who had a TaTME from 2013 to 2019. The main outcome was the incidence of locoregional recurrence by the end of the follow-up period.
Results
Among a total of 81 patients, 96.3% were male, and their mean age was 63±9 years. The mean body mass index was 30.3±5.7 kg/m2, and the median distance from tumor to anal verge was 5.0 cm (interquartile range [IQR], 4.0–6.0 cm). Most patients had a low anterior resection performed (n=80, 98.8%) with a diverting ileostomy (n=64, 79.0%). Distal and circumferential resection margins were positive in 2.5% and 6.2% of patients, respectively. Total mesorectal excision was complete or near complete in 95.1% of patients. A successful resection was achieved in 72 patients (88.9%). After a median follow-up of 27.5 months (IQR, 16.7–48.1 months), 4 patients (4.9%) experienced locoregional recurrence. Anastomotic leaks were observed in 21 patients (25.9%). At the end of the follow-up, 69 patients (85.2%) were stoma-free.
Conclusion
TaTME was associated with acceptable oncological outcomes, including low locoregional recurrence rates in selected patients with low rectal cancer. Although associated with a high incidence of postoperative morbidities, the use of TaTME enabled a high rate of successful sphincter-saving procedures in selected patients who posed a technical challenge.

Colorectal cancer

Evaluating prognostic significance of preoperative C-reactive protein to albumin ratio in older patients with pathological stage II or III colorectal cancer: Koji Numata, Yukari Ono, Mihwa Ju, Shizune Onuma, Ayano Tanaka, Taichi Kawabe, Sho Sawazaki, Akio Higuchi, Kazuki Yamanaka, Shinsuke Hatori, Hiroyuki Saeki, Hiroshi Matsukawa, Yasushi Rino, Kazuyuki Tani; Ann Coloproctol. 2024;40(2):161-168. Published online October 11, 2022; DOI: https://doi.org/10.3393/ac.2022.00367.0052

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6 Citations

Abstract PDF

Purpose
This study was performed to evaluate the prognostic value of preoperative C-reactive protein to albumin ratio (CAR) in older patients with colorectal cancer (CRC) undergoing curative resection.
Methods
We retrospectively analyzed 244 older patients (aged 75 years or higher) with pathological stage II or III CRC who underwent curative surgery between 2008 and 2016. The optimal value of CAR was calculated and its correlation with the clinicopathological factors and prognosis was examined.
Results
The optimal cutoff value of the CAR was 0.085. High preoperative CAR was significantly associated with high carcinoembryonic antigen levels (P=0.001), larger tumor size (P<0.001), and pT factor (P=0.001). On multivariate analysis, high CAR was independent prognostic factor for relapse-free survival (P=0.042) and overall survival (P=0.001).
Conclusion
Preoperative elevated CAR could be considered as an adverse predictor of both relapse-free survival and overall survival in older patients with CRC undergoing curative surgery.

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Post-chemotherapy C-reactive protein/albumin ratio predicts prognosis in stage II-III colorectal cancer
Fei-Fei Kong, Xuan Geng, Ru-Ming Liu, Wen-Tao Zhang, Bin Quan, Yong Zhong, You-Long Zhu
World Journal of Gastrointestinal Surgery.2026;[Epub] CrossRef
C-Reactive Protein/Albumin Ratio Is an Independent Risk Factor for Recurrence and Survival Following Curative Resection of Stage I–III Colorectal Cancer in Older Patients
Tomoaki Bekki, Manabu Shimomura, Minoru Hattori, Saki Sato, Atsuhiro Watanabe, Sho Ishikawa, Kouki Imaoka, Kosuke Ono, Keiso Matsubara, Tetsuya Mochizuki, Shintaro Akabane, Takuya Yano, Hideki Ohdan
Annals of Surgical Oncology.2024; 31(7): 4812. CrossRef
Towards a Gradual Optimization of Oncologic Prognostic Factors in the Era of the Frail Patient: The Potential Role of Preoperative Inflammation and Nutritional Status
Giuseppe Zimmitti
Annals of Surgical Oncology.2024; 31(8): 4853. CrossRef
Prognostic role of C-reactive protein to albumin ratio in cancer patients treated with immune checkpoint inhibitors: a meta-analysis
Menglu Dai, Wei Wu
Frontiers in Oncology.2023;[Epub] CrossRef
The association of blood biomarkers with treatment response and adverse health outcomes in older patients with solid tumors: A systematic review
Yara van Holstein, P. Janne E. van den Berkmortel, Stella Trompet, Diana van Heemst, Frederiek van den Bos, Marieke Roemeling-van Rhijn, Nienke A. de Glas, Marian Beekman, P. Eline Slagboom, Johanneke E.A. Portielje, Simon P. Mooijaart, Barbara C. van Mun
Journal of Geriatric Oncology.2023; 14(7): 101567. CrossRef
Prognostic prediction of colorectal cancer using the C-reactive protein to albumin ratio: the importance of inflammatory biomarkers and their association with long-term outcomes
Chul Seung Lee
Annals of Coloproctology.2023; 39(4): 287. CrossRef

Surgical management of retrorectal tumors: a single-center 12 years’ experience: Amirhosein Naseri, Behnam Behboudi, Ali Faryabi, Seyed Mohsen Ahmadi Tafti, Amirsina Sharifi, Mohammad Reza Keramati, Mohammad Sadegh Fazeli, Amir Keshvari, Mehdi Zeinalizadeh, Reza Akbari Asbagh, Niloufar Hoorshad, Alireza Kazemeini; Received April 26, 2022 Accepted June 23, 2022 Published online October 11, 2022; DOI: https://doi.org/10.3393/ac.2022.00297.0042 [Epub ahead of print]

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Abstract PDF

Purpose
Retrorectal tumors (RTs) are rare tumors that arise in the space between the mesorectum and the pelvic wall and often originate in embryonic tissues. The primary treatment for these tumors is complete excision surgery, and choosing the best surgical approach is very important.
Methods
In this study, we retrospectively collected the data of 15 patients with RTs who underwent surgery in Imam Khomeini Hospital (Tehran, Iran) for 12 years to share our experiences of patients’ treatment and compare different surgical approaches.
Results
A total of 5 tumors were malignant, 10 were benign, and most of the tumors were congenital. Malignant tumors were seen in older patients. Three surgical procedures were performed on patients. Three patients underwent abdominal approach surgery, and 8 patients underwent posterior surgery. A combined surgical approach was performed on 4 patients. Two patients underwent laparoscopic surgery. The abdominal approach had the least long-term complication, and the combined approach had the most complications; laparoscopic surgery reduced the length of hospital stay and complications after surgery.
Conclusion
A multidisciplinary team collaboration using magnetic resonance imaging details is necessary to determine a surgical treatment approach. It could reduce the need for a preoperative biopsy. However, every approach has its advantages and disadvantages, and individualized treatment is the key.

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Andrei Mihai Malutan, Viorela-Elena Suciu, Florin Laurentiu Ignat, Doru Diculescu, Razvan Ciortea, Emil-Claudiu Boțan, Carmen Elena Bucuri, Maria Patricia Roman, Ionel Nati, Cristina Ormindean, Dan Mihu
Diagnostics.2025; 15(1): 108. CrossRef
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Cesar A Barros de Sousa, Steven J Capece, Mikhail I Rakhmanine, John S Park
Cureus.2025;[Epub] CrossRef
Kraske Procedure: Oldie but Goodie
Murat Sen, Ozgen Isik
Diseases of the Colon & Rectum.2025; 68(12): e1941. CrossRef

Review

Malignant disease,Rectal cancer,Surgical technique

Transanal total mesorectal excision for rectal cancer: it’s come a long way and here to stay: Jing Yu Ng, Chien-Chih Chen; Ann Coloproctol. 2022;38(4):283-289. Published online August 29, 2022; DOI: https://doi.org/10.3393/ac.2022.00374.0053

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16 Citations

Abstract PDF

Transanal total mesorectal excision (TaTME) was introduced as a novel technique to deal with rectal cancers. Its transanal approach offered the shortest distance to approach a challenging location, allowing an excellent visualization of the distal resection margin. Since its introduction in 2010, a significant amount of research has been put in to measure its development. In this review, we look at its ancestry, the genesis for its introduction and continued evolution as well as some of the important outcomes in its journey thus far. The importance of a structured and proctored learning journey is also stressed to enable the safe application and development of this technique. Beyond this, the TaTME movement has progressed relentlessly and its utility has been expanded to the management of benign conditions such as inflammatory bowel disease, Hartman reversals, and anastomotic strictures. We believe that the continued development and adoption of TaTME worldwide is here to stay.

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Rectal Eversion as an Anus-sparing Technique in Laparoscopic Low Anterior Resection With Double Stapling Anastomosis: Long-term Functional Results
Servet Karagul, Serdar Senol, Oktay Karakose, Huseyin Eken, Cuneyt Kayaalp
Surgical Laparoscopy, Endoscopy & Percutaneous Techniques.2025;[Epub] CrossRef
Histopathological outcomes of transanal, robotic, open, and laparoscopic surgery for rectal cancer resection. A Bayesian network meta-analysis of randomized controlled trials
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Original Articles

Anorectal benign disease

Simple mucopexy and hemorrhoidal arterial ligation with and without Doppler guide: a randomized clinical trial for short-term outcome: Mahdi Alemrajabi, Abolfazl Akbari, Sara Sohrabi, Mohammad Rezazadehkermani, Mohammad Moradi, Shahram Agah, Mohsen Masoodi; Ann Coloproctol. 2023;39(4):351-356. Published online May 16, 2022; DOI: https://doi.org/10.3393/ac.2022.00017.0002

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153 Download
8 Web of Science
11 Citations

Abstract PDF

Purpose
Hemorrhoids are the most common benign anorectal diseases. Mucopexy strengthens the anal canal mucosa, which can be performed alone or in combination with Doppler-guided hemorrhoidal artery ligation (DG-HAL). In this study, we compared the postoperative complications between simple mucopexy plus HAL with and without a Doppler guide.
Methods
This study was performed as a single-blinded randomized clinical trial. Patients referred to a tertiary colorectal referral clinic with grades 3 and 4 hemorrhoids who were candidates for surgical intervention entered the study. Thirty-six patients were randomly divided into 2 groups. Group A including 18 patients underwent mucopexy and DG-HAL and the other 18 patients (group B) underwent standard mucopexy and HAL without a Doppler guide. Postoperative pain score and the duration of oral analgesic consumption were recorded. Additionally, postoperative symptoms and complications were recorded and compared between the 2 methods.
Results
There was no significant difference between the 2 groups in terms of pain score and the duration of postoperative analgesic consumption as well as the incidence of postoperative complications. Besides, the primary grade of hemorrhoids was not significantly associated with recurrence, but there was a significant association between body mass index and Wexner score (WS) with recurrence. The mean WS of patients showed a significant decrease in both groups postoperatively. However, the rate of WS reduction was not remarkably different between the 2 groups.
Conclusion
Simple mucopexy with blind HAL (without Doppler guide) might be considered for the treatment of grades 3 and 4 hemorrhoids effectively.

Citations

Citations to this article as recorded by

Comparison of “Mucopexy with Haemorrhoidal Artery Ligation with Open Hemorrhoidectomy in Terms of Effectiveness and Outcome
Muhammad Asad, Kiran Rehman, Muhammad Ismail Seerat, Maryam Iftikhar, Bilal Ahmed, Adil Hameed, Sufyan Rauf
Pakistan Journal of Health Sciences.2025; : 191. CrossRef
Latest Research Trends on the Management of Hemorrhoids
Sung Il Kang
Journal of the Anus, Rectum and Colon.2025; 9(2): 179. CrossRef
Evaluation of Doppler-guided Hemorrhoid Artery Ligation and Recto anal Repair Procedure: A Single-center Analysis in Indonesia
Amanda Putri Halim, Livia Taniwangsa, Joanna A. Kosasih, Anthony Berlim Lioe
Indian Journal of Colo-Rectal Surgery.2025; 8(1): 9. CrossRef
Haemorrhoidal artery ligation: Is Doppler guidance useful? A systematic review and meta‐analysis of randomized controlled trials
Roberta Tutino, Arcangelo Picciariello, Mauro Santarelli, Veronica De Simone, Pierluigi Lobascio, Gianfranco Cocorullo, Marco Massani, Giusi Graziano, Giulio Aniello Santoro, Gaetano Gallo
Colorectal Disease.2025;[Epub] CrossRef
Defining recurrence in haemorrhoidal disease and comparing Doppler systems: Are we evaluating Doppler fairly
Ugo Grossi, Pasquale Giordano
Colorectal Disease.2025;[Epub] CrossRef
Doppler-Guided Versus Digitally Guided Transanal Hemorrhoidal Dearterialization: A Systematic Review and Meta-Analysis
Marília Cardoso Massoni, Felipe Santos Marimpietri, Paulo André Lago Silva, Glicia Estevam de Abreu
Journal of Coloproctology.2025; 45(03): 001. CrossRef
The Italian Unitary Society of Colon-Proctology (Società Italiana Unitaria di Colonproctologia) guidelines for the management of acute and chronic hemorrhoidal disease
Antonio Brillantino, Adolfo Renzi, Pasquale Talento, Luigi Brusciano, Luigi Marano, Maurizio Grillo, Mauro Natale Maglio, Fabrizio Foroni, Alessio Palumbo, Maria Laura Sandoval Sotelo, Luciano Vicenzo, Michele Lanza, Giovanna Frezza, Massimo Antropoli, Cl
Annals of Coloproctology.2024; 40(4): 287. CrossRef
Conventional Excisional Haemorrhoidectomy versus Transanal Haemorrhoidal Dearterialization for Haemorrhoids: A Systematic Review and Meta-Analysis
Juliana Jee, Lauren Vourneen O’Connell, Ishapreet Kaur, Shaheel Mohammad Sahebally
Digestive Surgery.2024; 41(4): 204. CrossRef
Haemorrhoid artery ligation – recto anal repair (HAL‐RAR) blind versus Doppler: a systematic review and meta‐analysis
Amos Nepacina Liew, Jason Wang, Michelle Zhiyun Chen, Yeng Kwang Tay, Joseph C.H. Kong
ANZ Journal of Surgery.2024; 94(11): 2053. CrossRef
Lower pain, less itching, and faster healing after ultrasound scalpel-assisted hemorrhoidectomy using an intimate cleaner containing chlorhexidine, acid hyaluronic acid, and natural anti-inflammatories: a multicenter observational case-control study
Antonio Brillantino, Luigi Marano, Maurizio Grillo, Alessio Palumbo, Fabrizio Foroni, Luciano Vicenzo, Alessio Antropoli, Michele Lanza, Maria Laura Sandoval Sotelo, Nicola Sangiuliano, Mauro Maglio, Rosanna Filosa, Lucia Abbatiello, Maria Preziosa Romano
Annals of Coloproctology.2024; 40(6): 602. CrossRef
Picking Up the Threads: Long-Term Outcomes of the Sutured Haemorrhoidopexy: A Retrospective Single-Centre Cohort Study
Sara Z. Kuiper, Kayleigh A. M. Van Dam, Merel L. Kimman, Litza Mitalas, Paula G. M. Koot, Jarno Melenhorst, Sander M. J. Van Kuijk, Carmen D. Dirksen, Stephanie O. Breukink
Journal of Clinical Medicine.2023; 12(1): 391. CrossRef

Anorectal physioloy

Validation of low anterior resection syndrome score in Brazil with Portuguese: Kelly C.L.R. Buzatti, Andy Petroianu, Søren Laurberg, Rodrigo G. Silva, Beatriz D.S. Rodrigues, Peter Christensen, Antonio Lacerda-Filho, Therese Juul; Ann Coloproctol. 2023;39(5):402-409. Published online May 13, 2022; DOI: https://doi.org/10.3393/ac.2022.00136.0019

6,869 View
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5 Web of Science
3 Citations

Abstract PDF

Purpose
This study was performed to investigate the convergent validity, discriminative validity, and reliability of the Brazilian version of the low anterior resection syndrome (LARS) score in a population with low educational and socioeconomic levels.
Methods
The LARS score was translated into the Portuguese language by forward- and back-translation procedures. In total, 127 patients from a public hospital in Brazil completed the questionnaires. The convergent validity was tested by comparing the LARS score with the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core Module 30 (QLQ-C30) and with patients’ self-reported quality of life. For the discriminative validity, we tested the ability of the score to differentiate among subgroups of patients regarding neoadjuvant radiotherapy, type of surgery, and tumor distance from the anal verge. The test-retest reliability was investigated in a subgroup of 36 patients who responded to the survey twice in 2 weeks.
Results
The LARS score demonstrated a strong correlation with 5 of 6 items from the EORTC QLQ-C30 (P<0.05) and good concordance with patients’ self-reported quality of life (95.3%), confirming the convergent validity. The score was able to discriminate between subgroups of patients with different clinical characteristics related to LARS (P<0.001). The agreement between the test and retest showed that 86.1% of the patients remained in the same LARS category, and there was no significant difference between the LARS score numerical values (P=0.80), indicating good reliability overall.
Conclusion
The Brazilian version of the LARS score is a valid and reliable instrument to assess postoperative bowel function in a population with low educational and socioeconomic levels.

Citations

Citations to this article as recorded by

Effects of low anterior resection syndrome after colorectal cancer resections on health-related quality of life: a systematic review and meta-analysis
S. Shojaei-Zarghani, K. Gorgi, A. Bananzadeh, A. R. Safarpour, S. V. Hosseini
Techniques in Coloproctology.2025;[Epub] CrossRef
Validation of the Vietnamese version of the low anterior resection syndrome score questionnaire
Tuong-Anh Mai-Phan, Vu Quang Pham
Annals of Coloproctology.2024; 40(6): 588. CrossRef
Beyond survival: a comprehensive review of quality of life in rectal cancer patients
Won Beom Jung
Annals of Coloproctology.2024; 40(6): 527. CrossRef

Effect of reinforcement suture on anastomotic healing in rectal and sigmoid tumor resections, single-center experience: a retrospective case-controlled study: Tomáš Řezáč, Petr Špička, Pavel Zbořil, Martin Stašek, Radek Vrba, Dušan Klos; Ann Coloproctol. 2023;39(2):139-146. Published online March 11, 2022; DOI: https://doi.org/10.3393/ac.2021.00948.0135

6,098 View
145 Download
3 Web of Science
3 Citations

Abstract PDF

Purpose
Healing of colorectal anastomosis is burdened with a number of risk factors and the development of leak carries with it higher morbidity and mortality associated not only with worse quality of life but also worse oncological outcomes. The purpose of the study was an evaluation of the effect of reinforcement suture in the healing of stapler rectal anastomosis and risk factors for anastomotic leakage in mid, upper rectal and sigmoid tumors.
Methods
A total of 357 patients who underwent curative resection for rectal or sigmoid tumor over 5 years were analyzed. Risk factors, baseline demographic and clinical data, and presence of leak were recorded. All statistical analyses were carried out at a significance level of P<0.05.
Results
One hundred fifty-one patients met the inclusion criteria for the study. The overall incidence of leak was 2.8% in the group with reinforcement suture and 6.3% in the group without reinforcement suture. Because of the low incidence of leak the results were not statistically significant. Further results also show that none of the monitored parameters (age, weight, body mass index, tumor distance, preoperative radiotherapy, tumor stage, type of surgery) were significant predictors of anastomotic leakage.
Conclusion
Although the reinforcement suture is a safe and simple option for anastomosis protection after rectal or sigmoid resections, its statistical significance was not demonstrated in our study.

Citations

Citations to this article as recorded by

Risk Factors for Sigmoid Colonic Anastomosis: A Comparative and Cross-Sectional Analysis
Tutkun Talih, Gokhan Sonmez, Erdogan Sozuer, Sevket Tombul, Mahmut Kulturoglu, Dogan Islam, Hızır Akyıldız, Abdullah Demirtas, Mustafa Karaagac, Fatih Dal
Therapeutics and Clinical Risk Management.2025; Volume 21: 1219. CrossRef
Comprehensive evaluation of reinforcement strategies for anastomotic leak prevention in rectal cancer surgery: an umbrella review of meta-analyses
Arcangelo Picciariello, Gianpiero Gravante, Alfredo Annicchiarico, Rossella Melcarne, Leonardo Vincenti
Updates in Surgery.2025; 77(8): 2195. CrossRef
Defining key interventions for rectal cancer surgery: a literature review and expert panel consensus
Cédric Schraepen, Gabriele Bislenghi, Kris Vanhaecht, André D’Hoore, Albert Wolthuis, Ellen Coeckelberghs
International Journal of Colorectal Disease.2025;[Epub] CrossRef

Benign bowel disease

Short-term outcomes in patients undergoing laparoscopic surgery for deep infiltrative endometriosis with rectal involvement: a single-center experience of 168 cases: Sara Gortázar de las Casas, Emanuela Spagnolo, Salomone Di Saverio, Mario Álvarez-Gallego, Ana López Carrasco, María Carbonell López, Sergio Torres Cobos, Constantino Fondevila Campo, Alicia Hernández Gutiérrez, Isabel Pascual Miguelañez; Ann Coloproctol. 2023;39(3):216-222. Published online March 7, 2022; DOI: https://doi.org/10.3393/ac.2021.00829.0118

6,899 View
166 Download
3 Web of Science
2 Citations

Abstract PDF

Purpose
The surgical management of deep infiltrative endometriosis (DE) involving the rectum remains a challenge. The objective of this study was to assess the outcomes from a single tertiary center over a decade with an emphasis on the role of a protective loop ileostomy (PI).
Methods
A retrospective review of outcomes for 168 patients managed between 2008 and 2018 is presented including 57 rectal shaves, 23 discoid excisions, and 88 segmental rectal resections.
Results
The nodule size (mean±standard deviation) in the segmental resection group was 32.7±11.2 mm, 23.4±10.5 mm for discoid excision, and 18.8±6.0 mm for rectal shaves. A PI was performed in 19 elective cases (11.3%) usually for an ultra-low anastomosis <5 cm from the anal verge. All Clavien-Dindo grade III/IV complications occurred after segmental resections and included 5 anastomotic leaks, 6 rectovaginal fistulas, 2 ureteric fistulas, and 1 ureteric stenosis. Of 26 stomas (15.5%), there were 19 PIs, 3 secondary ileostomies (after complications), and 4 end colostomies. The median time to PI closure was 5.8 months (range, 0.4–16.7 months) in uncomplicated disease compared with 9.2 months (range, 4.7–18.4 months) when initial postoperative complications were recorded (P=0.019). Only 1 patient with a recurrent rectovaginal fistula had a permanent colostomy.
Conclusion
In patients with DE and rectal involvement a PI is selectively used for low anastomoses and complex pelvic reconstructions. Protective stomas and those used in the definitive management of a major postoperative complication can usually be reversed.

Citations

Citations to this article as recorded by

Surgeons' workload assessment during indocyanine-assisted deep endometriosis surgery using the surgery task load index: The impact of the learning curve
Emanuela Spagnolo, Ignacio Cristóbal Quevedo, Sara Gortázar de las Casas, Ana López Carrasco, Maria Carbonell López, Isabel Pascual Migueláñez, Alicia Hernández Gutiérrez
Frontiers in Surgery.2022;[Epub] CrossRef
Quality of Life in Women after Deep Endometriosis Surgery: Comparison with Spanish Standardized Values
Alicia Hernández, Elena Muñoz, David Ramiro-Cortijo, Emanuela Spagnolo, Ana Lopez, Angela Sanz, Cristina Redondo, Patricia Salas, Ignacio Cristobal
Journal of Clinical Medicine.2022; 11(20): 6192. CrossRef

Minimally invasive surgery,Surgical technique

The impact of assistants’ reverse alignment surgical skill proficiency on laparoscopic colorectal surgery: Seunghun Lee; Ann Coloproctol. 2022;38(6):432-441. Published online January 20, 2022; DOI: https://doi.org/10.3393/ac.2021.00689.0098

5,319 View
148 Download
4 Web of Science
4 Citations

Graphical Abstract Abstract PDF

Purpose
We aimed to investigate the difference in the surgical outcome based on whether the assistant overcame the mirror image in laparoscopic colorectal surgery.
Methods
Three hundred patients who underwent laparoscopic colorectal surgery performed by single operator were divided into 2 groups. Based on the assistants’ experience, patients who underwent surgery involving 1 of 6 residents with an experience of fewer than 30 surgeries each were classified into group 1. Patients who underwent surgery involving a single fellow as an assistant with an experience of over 1,000 surgeries were classified into group 2. According to the type of surgery, patients were divided into left and right colon resection groups and the surgical outcome of groups 1 and 2 was investigated.
Results
Group 2 exhibited shorter operation time, less bleeding, shorter postoperative hospital stay, lower open conversion, and anastomotic leakage rate than group 1. In right colon resection, the operation time was shorter in group 2. In left colon resection, group 2 exhibited shorter operation time, less bleeding, shorter postoperative hospital stay, and lower anastomotic leakage rate. In the multivariate analysis, the assistant was a factor affecting the operation time in the entire surgery.
Conclusion
Assistants’ reverse alignment surgical skill proficiency was a factor affecting the operation time.

Citations

Citations to this article as recorded by

The Impact of the First Assistant's Experience on the Perioperative Outcome of Patients Undergoing Laparoscopic Hysterectomies for Benign Diseases: A Retrospective Analysis
Sangam Jha, Vikas Chandra Jha, Sharda Jha, Jafeesha B. Singh
Journal of Gynecologic Surgery.2025; 41(4): 164. CrossRef
Design of Automatic Tool Replacement Mechanism for Laparoscopic Surgical Robot Arm for Solo Surgery
Daehwan Ko, Yeonkyoung Kim, Hongseok Lim, Sungmin Kim
The International Journal of Medical Robotics and Computer Assisted Surgery.2025;[Epub] CrossRef
Sex Disparities in Rectal Cancer Surgery: An In-Depth Analysis of Surgical Approaches and Outcomes
Chungyeop Lee, In Ja Park
The World Journal of Men's Health.2024; 42(2): 304. CrossRef
Can assistants’ skills be used to improve colorectal cancer surgery outcomes in a way similar to the “butterfly effect”?
Je-Ho Jang
Annals of Coloproctology.2022; 38(6): 391. CrossRef

Case Report

Benign bowel disease

Recurrent perianal abscess in a patient with Hermansky-Pudlak syndrome–associated granulomatous colitis: a case report: Ahmet Omak, Tevfik Kıvılcım Uprak, Wafi Attaallah; Ann Coloproctol. 2024;40(Suppl 1):S11-S14. Published online November 19, 2021; DOI: https://doi.org/10.3393/ac.2021.00437.0062

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139 Download

Abstract PDF: Hermansky-Pudlak syndrome (HPS) is a rare genetic disease consisting of the triad of oculocutaneous albinism, bleeding diathesis, and pigmented reticuloendothelial cells. In HPS patients’ granulomatous colitis could be an additional feature and perianal abscess could be seen in such patients. We report a patient with HPS-associated granulomatous colitis, refractory to medical treatment, and perianal involvement. Patients with HPS-associated granulomatous colitis and perianal involvement may require multiple surgical interventions and there is no consensus yet for treatment in such patients.

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