Annals of Coloproctology

Original Articles

Early urinary catheter removal in patients undergoing rectal cancer surgery: a randomized controlled trial on silodosin versus no pharmacological treatment on urinary function in the early postoperative period: Žilvinas Gricius, Justas Kuliavas, Eugenijus Stratilatovas, Bronius Buckus, Audrius Dulskas; Received October 6, 2024 Accepted January 20, 2025 Published online June 20, 2025; DOI: https://doi.org/10.3393/ac.2024.00703.0100 [Epub ahead of print]

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Abstract PDF: Purpose
This study aimed to evaluate the efficacy of the α1 adrenergic receptor antagonist silodosin in preventing lower urinary tract symptoms after rectal cancer surgery.
Methods
We conducted a 2-arm, double-blind, single-center randomized controlled trial. The study included 150 patients with rectal cancer who underwent radical surgery between 2019 and 2022. On the first postoperative day, the urinary catheter was removed for all patients. Of these, 100 patients were administered silodosin, while 50 patients (control group) receive placebo (glucose tablet). Urinary dysfunction (urinary retention, infection, dysuria) and other complications were monitored.
Results
Among the 150 patients, 84 (56.0%) were male and 66 (44.0%) were female. Surgical procedures included abdominoperineal resection in 33 patients, partial mesorectal excision in 45, and total mesorectal excision in 72. A laparoscopic approach was used in 69 patients, while the remaining 81 underwent open surgery. Urinary tract symptoms developed in 10 patients (6.7%): 7 (7.0%) in the silodosin group and 3 (6.0%) in the control group (P=0.92). In the silodosin group, there was 1 case (1.0%) of urinary retention, 3 cases (3.0%) of urinary tract infection, and 3 cases (3.0%) of dysuria. In the control group, there was 1 case (2.0%) each of urinary retention, urinary tract infection, and dysuria (all P=0.92).
Conclusion
Early urinary catheter removal on the first postoperative day was safe in both groups. The use of the oral α-antagonist silodosin did not provide additional benefits in preventing lower urinary tract symptoms in patients undergoing rectal cancer surgery.

Incisional hernia risk in intracorporeal anastomosis with Pfannenstiel incision versus extracorporeal anastomosis with midline incision for laparoscopic right hemicolectomy: a multicenter comparison: Francesco Saverio Lucido, Giusiana Nesta, Luigi Brusciano, Claudio Gambardella, Francesco Pizza, Giuseppe Scognamiglio, Gianmattia del Genio, Salvatore Tolone, Federico Maria Mongardini, Massimo Mongardini, Ludovico Docimo, Simona Parisi; Received September 29, 2024 Accepted January 20, 2025 Published online June 18, 2025; DOI: https://doi.org/10.3393/ac.2024.00682.0097 [Epub ahead of print]

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Abstract PDF: Purpose
Laparoscopic right hemicolectomy can be performed via intracorporeal ileocolic anastomosis (ICA) or extracorporeal ileocolic anastomosis (ECA). Prior studies have emphasized ICA’s advantages in hospital stay and postoperative pain. This multicenter study aimed to compare the 2-year incidence of incisional hernia between ICA (using a suprapubic Pfannenstiel incision) and ECA (using a pararectal incision) and assess perioperative outcomes.
Methods
We retrospectively analyzed patients undergoing laparoscopic right hemicolectomy between 2019 and 2020, divided into 2 groups: ICA with a Pfannenstiel incision and ECA with a pararectal incision.
Results
The mean operative time was longer in the ICA group (190 minutes vs. 170 minutes, P=0.004). Despite requiring advanced surgical skills and prolonged operative time, ICA was associated with superior short-term outcomes and a significantly lower incisional hernia rate compared to ECA (1.2% vs. 14.7%, P=0.044) at 24-month follow-up.
Conclusion
ICA is linked to longer operative times, but shorter hospital stays, fewer wound complications, and reduced incisional hernia rates compared to ECA.

Review Article

Unraveling the enigma of sclerosing encapsulating peritonitis: a comprehensive review: Witcha Vipudhamorn, Tawan Juthasilaparut, Pawit Sutharat, Suwan Sanmee, Ekkarin Supatrakul, Sayanan Chowsilpa, Kraipop Wongwaiyut, Rujee Rattanasathien; Received August 4, 2024 Accepted November 18, 2024 Published online June 18, 2025; DOI: https://doi.org/10.3393/ac.2024.00486.0069 [Epub ahead of print]

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Abstract PDF: Sclerosing encapsulating peritonitis (SEP) is a rare but serious condition characterized by the progressive formation of a dense fibrous sheath encasing the small bowel within the peritoneal cavity. This review provides a comprehensive overview of the current understanding of SEP, focusing on its etiology, clinical presentation, diagnostic modalities, and management strategies. SEP can be classified into primary and secondary forms, each with distinct etiologies and treatment approaches. Primary SEP typically presents with acute or subacute bowel obstruction symptoms, necessitating surgical intervention to excise the fibrous sheath and relieve the obstruction. Secondary SEP often occurs in patients undergoing peritoneal dialysis, with cessation of dialysis being a key component of management. Medical treatments, including corticosteroids, immunosuppressive agents, and nutritional support, may complement surgical intervention, particularly in cases of secondary SEP. Advanced imaging techniques and personalized medicine approaches show promise in improving diagnostic accuracy and tailoring treatment strategies to individual patients. Future research directions include investigating targeted pharmacological therapies, exploring minimally invasive surgical techniques, and conducting long-term follow-up studies to evaluate treatment efficacy and disease recurrence. Multidisciplinary care teams play a crucial role in the comprehensive management of SEP, emphasizing collaboration among various specialties to optimize patient outcomes.

Brief Communication

Anorectal manometric data depend on the direction of pressure measurements in healthy individuals and in patients with functional constipation: Haibin Yao, Shixiong Bao, Daming Sun, Zhiyong Huang, Min Yang, Hans Gregersen; Received January 27, 2025 Accepted March 31, 2025 Published online June 16, 2025; DOI: https://doi.org/10.3393/ac.2025.00066.0009 [Epub ahead of print]

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Original Articles

Validation of a novel imaging-guided and anatomy-based classification system for anorectal fistulas: a retrospective clinical evaluation study: Antonio Brillantino, Francesca Iacobellis, Luigi Marano, Adolfo Renzi, Pasquale Talento, Luigi Brusciano, Claudio Gambardella, Umberto Favetta, Michele Schiano Di Visconte, Luigi Monaco, Maurizio Grillo, Mauro Natale Maglio, Fabrizio Foroni, Alessio Palumbo, Maria Laura Sandoval Sotelo, Luciano Vicenzo, Elisa Palladino, Giovanna Frezza, Maria Paola Menna, Paolino Mauro, Stefano Picardi, Mario Massimo Mensorio, Vinicio Mosca, Vincenzo Bottino, Giovanna Ioia, Corrado Rispoli, Marco Di Serafino, Martina Caruso, Roberto Ronza, Barbara Frittoli, Daria Schettini, Luca Stoppino, Franco Iafrate, Giulio Lombardi, Carmine Antropoli, Salvatore Cappabianca, Ludovico Docimo, Roberto Grassi, Alfonso Reginelli; Received September 28, 2024 Accepted January 10, 2025 Published online June 16, 2025; DOI: https://doi.org/10.3393/ac.2024.00675.0096 [Epub ahead of print]

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Abstract PDF: Purpose
This study was conducted to evaluate the validity of a new imaging-guided, anatomy-based classification of anorectal fistulas in defining disease severity and predicting surgical outcomes.
Methods
This multicenter, retrospective cohort study analyzed data from patients with perianal fistulas who underwent surgery between 2017 and 2023. All patients underwent preoperative 3-dimensional endoanal ultrasound, with adjunctive magnetic resonance imaging performed if ultrasound indicated a complex fistula. Imaging examinations were retrospectively evaluated to categorize fistulas according to the Garg classification and the newly proposed classification system. The new classification included 6 severity grades based on the characteristics of the primary tract: submucosal, intersphincteric, low transsphincteric, high transsphincteric, multiple, and suprasphincteric/extrasphincteric. Each grade was further subdivided into 3 subtypes (A, B, C) based on the extension of secondary tracts.
Results
When compared with the new classification, the Garg classification demonstrated a slightly lower ability to predict the feasibility of fistulotomy in simple fistulas (94.2% vs 99.1%; Fisher exact test, P=0.006). A strong positive correlation was found between the surgery failure rate and the severity grade of the new classification (Spearman rho, 0.90; P<0.001), whereas the Garg classification showed a nonsignificant positive correlation with surgical failure rate (Spearman rho, 0.90; P=0.08).
Conclusion
The new imaging-guided, anatomy-based classification of anorectal fistulas demonstrates high accuracy in defining disease severity. It represents a valuable tool for preoperative grading of anal fistulas, standardizing the reporting of diagnostic imaging, and improving the communication of findings among healthcare professionals.

Improved outcomes with cyanoacrylate glue for ileocolic anastomosis in right colectomy: a multicenter study: Daniela Rega, Ernesto De Giulio, Raffaele De Luca, Andrea Muratore, Marco Milone, Giuseppe Sica, Paolo Millo, Carmela Cervone, Nicola Cillara, Patrizia Marsanic, Brunella Maria Pirozzi, Valeria Grazia Malagnino, Pietro Anoldo, Marcello Calabrò, Giovanni De Palma, Michele Simone, Paolo Delrio; Received December 3, 2024 Accepted February 9, 2025 Published online June 4, 2025; DOI: https://doi.org/10.3393/ac.2024.00899.0128 [Epub ahead of print]

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Abstract PDF: Purpose
Anastomotic leaks (AL) remain a major complication following right colectomy for colon cancer. This multicenter, prospective, observational study evaluated the efficacy of Glubran 2, a cyanoacrylate-based sealant, in reducing the incidence of AL by reinforcing ileocolic anastomoses.
Methods
The study enrolled 380 patients undergoing right colectomy for colon cancer across 7 Italian hospitals. Glubran 2 was applied to reinforce ileocolic anastomoses. The primary endpoint was a 50% reduction in AL incidence from a baseline of 6.18% within 10 days after surgery. Secondary endpoints included examining the correlation between AL and preexisting risk factors and determining the rate of anastomotic bleeding. Statistical analyses employed binomial tests and logistic regression.
Results
The AL rate was reduced to 1.85% compared to the reference rate of 6.18% (P<0.01). Glubran 2 exhibited a protective effect even in patients with preexisting risk factors such as smoking, diabetes, or prior surgeries; none of these factors was significantly associated with AL (P>0.05). Surgical technique (P=0.687), anastomosis technique (P=0.998), and anastomosis type (P=0.998) did not influence AL rates. Operation time was similar across groups (P=0.613), and anastomotic bleeding occurred in 1.3% of cases, with no association with AL (P=0.989).
Conclusion
Glubran 2 was safely applied to ileocolic anastomoses, significantly reducing AL rates and potentially providing a protective effect even in patients with known risk factors. Its hemostatic and bacteriostatic properties support improved postoperative outcomes, highlighting its potential as an effective adjunct in colorectal surgery. Further studies are warranted to confirm these findings and explore broader applications.

Editorial

Minimally invasive surgery

Minimally invasive transanal excision over conventional transanal excision: pursuing the perfect removal of early rectal cancer: HyungJoo Baik; Ann Coloproctol. 2025;41(2):105-106. Published online April 30, 2025; DOI: https://doi.org/10.3393/ac.2025.00479.0068

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Original Articles

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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1 Citations

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

Citations to this article as recorded by

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.

Citations

Citations to this article as recorded by

Investigating the Efficacy of Layered Moderate Tension Reduction Suturing in Facial Aesthetic Surgery
Gui H Wang, Jin Y Gang, Yan Li
Cureus.2025;[Epub] CrossRef

CRC

Relationships between MMP-2, MMP-9, and ADAMDEC1 serum and tissue levels in patients with colorectal cancer: Zahra Mozooni, Kiana Khajeh Amiri, Nafiseh Golestani, Alireza Shahmohammadi, Sara Minaeian, Leyla Bahadorizadeh; Ann Coloproctol. 2025;41(2):136-144. Published online April 29, 2025; DOI: https://doi.org/10.3393/ac.2024.00227.0032

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Abstract PDF Supplementary Material: Purpose
Colorectal cancer (CRC) is the most common malignancy of the gastrointestinal system globally. Identifying specific gene expression patterns indicative of early-stage CRC could enable early diagnosis and rapid treatment initiation. Matrix metalloproteinases (MMPs) play crucial roles in extracellular matrix degradation and tissue remodeling. Among them, MMP-2 and MMP-9 have been found to be upregulated in various cancers, including CRC, and are associated with tumor invasion, metastasis, and angiogenesis. In contrast, a disintegrin and metalloproteinase like decysin 1 (ADAMDEC1) is a relatively newly discovered gene with demonstrated involvement in immune response and inflammation. This study investigated serum levels of MMP-2 and MMP-9, along with tissue expression of MMP-2, MMP-9, and ADAMDEC1, and explored potential associations with pathological and clinical factors in patients with CRC.
Methods
This study included 100 patients with CRC and 100 control participants. Tissue and blood samples were collected. Serum MMP-2 and MMP-9 levels were analyzed using the enzyme-linked immunosorbent assay. Quantitative real-time polymerase chain reaction was employed to assess the expression levels of MMP-2, MMP-9, and ADAMDEC1 in CRC tissue samples compared to adjacent control tissue.
Results
The expression levels of MMP-2, MMP-9, and ADAMDEC1 were significantly upregulated in CRC relative to adjacent control tissues. Analysis of clinicopathological features revealed statistically significant differences in the expression levels of MMP-2, MMP-9, and ADAMDEC1 between patients with CRC with and without lymphovascular invasion (P<0.001). Based on receiver operating characteristic curve analysis, these genes represent promising candidate diagnostic biomarkers for CRC.
Conclusion
MMP-2, MMP-9, and ADAMDEC1 levels may serve as potential diagnostic biomarkers for CRC.

Anorectal benign disease

A comparative study on efficacy and safety of modified partial stapled hemorrhoidopexy versus conventional hemorrhoidectomy: a prospective randomized controlled trial: Tae Gyu Kim, Chul Seung Lee, Dong Geun Lee, Choon Sik Chung, Seung Han Kim, Sang Hwa Yu, Jeong Eun Lee, Gwan Cheol Lee, Dong Woo Kang, Jeong Sub Kim, Gyu Young Jeong; Ann Coloproctol. 2025;41(2):145-153. Published online April 28, 2025; DOI: https://doi.org/10.3393/ac.2024.00535.0076

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Abstract PDF Supplementary Material: Purpose
The long-term outcomes and efficacy of partial stapled hemorrhoidopexy (PSH) compared with those of conventional hemorrhoidectomy (CH) are not fully understood. This study aimed to introduce a modified PSH (mPSH) and compare its clinical efficacy and safety with those of CH.
Methods
A prospective randomized controlled trial was conducted. This study was performed at a single hospital and involved 6 colorectal surgeons. In total, 110 patients were enrolled between July 2019 and September 2020. Patients were randomly assigned to undergo either mPSH group (n=55) or CH group (n=55). The primary outcome was to compare postoperative average pain and postoperative peak pain using visual analog scale score between the 2 groups.
Results
The required duration of analgesia was shorter in the mPSH group than in the CH group, although the difference was not statistically significant (P=0.096). However, the laxative requirement duration (P<0.010), return to work (P<0.010), satisfaction score (P<0.010), and Vaizey score (P=0.014) were significantly better in the mPSH group. The average and peak postoperative pain scores were significantly lower in the mPSH group during the 15 days after surgery (P<0.001). The overall complication rate in both groups was 9.1%, with no significant difference between the groups (P=0.867).
Conclusion
The mPSH group demonstrated better improvement in symptoms, lower pain scores, and greater patient early satisfaction after surgery than the CH group. Therefore, this surgical technique appears to be a safe and effective alternative for CH.

CRC

Impact of iron-deficiency anemia on short-term outcomes after resection of colorectal cancer liver metastasis: a US National (Nationwide) Inpatient Sample (NIS) analysis: Ko-Chao Lee, Yu-Li Su, Kuen-Lin Wu, Kung-Chuan Cheng, Ling-Chiao Song, Chien-En Tang, Hong-Hwa Chen, Kuan-Chih Chung; Ann Coloproctol. 2025;41(2):119-126. Published online April 24, 2025; DOI: https://doi.org/10.3393/ac.2024.00591.0084

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Abstract PDF Supplementary Material: Purpose
Colorectal cancer (CRC) often spreads to the liver, necessitating surgical treatment for CRC liver metastasis (CRLM). Iron-deficiency anemia is common in CRC patients and is associated with fatigue and weakness. This study investigated the effects of iron-deficiency anemia on the outcomes of surgical resection of CRLM.
Methods
This population-based, retrospective study evaluated data from adults ≥20 years old with CRLM who underwent hepatic resection. All patient data were extracted from the 2005–2018 US National (Nationwide) Inpatient Sample (NIS) database. The outcome measures were in-hospital outcomes including 30-day mortality, unfavorable discharge, and prolonged length of hospital stay (LOS), and short-term complications such as bleeding and infection. Associations between iron-deficiency anemia and outcomes were determined using logistic regression analysis.
Results
Data from 7,749 patients (representing 37,923 persons in the United States after weighting) were analyzed. Multivariable analysis revealed that iron-deficiency anemia was significantly associated with an increased risk of prolonged LOS (adjusted odds ratio [aOR], 2.76; 95% confidence interval [CI], 2.30–3.30), unfavorable discharge (aOR, 2.42; 95% CI, 1.83–3.19), bleeding (aOR, 5.05; 95% CI, 2.92–8.74), sepsis (aOR, 1.60; 95% CI, 1.04–2.46), pneumonia (aOR, 2.54; 95% CI, 1.72–3.74), and acute kidney injury (aOR, 1.71; 95% CI, 1.24–2.35). Subgroup analyses revealed consistent associations between iron-deficiency anemia and prolonged LOS across age, sex, and obesity status categories.
Conclusion
In patients undergoing hepatic resection for CRLM, iron-deficiency anemia is an independent risk factor for prolonged LOS, unfavorable discharge, and several critical postoperative complications. These findings underscore the need for proactive anemia management to optimize surgical outcomes.

Review

Inflammatory/benign bowel disease

Clinical outcomes and optimal indications for nonoperative management of acute appendicitis in adult patients: a comprehensive literature review: Hyun Gu Lee, In Ja Park; Ann Coloproctol. 2025;41(2):107-118. Published online April 16, 2025; DOI: https://doi.org/10.3393/ac.2023.00192.0027

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Graphical Abstract Abstract PDF: Appendectomy as the standard treatment for acute appendicitis has been challenged by accumulating evidence supporting nonoperative management with antibiotics as a potential primary treatment. This review aimed to summarize the clinical outcomes and the optimal indications for nonoperative management of acute appendicitis in adults. Current evidence suggests that uncomplicated and complicated appendicitis have different pathophysiologies and should be treated differently. Nonoperative management for uncomplicated appendicitis was not inferior to appendectomy in terms of complications and length of stay, with less than a 30% failure rate at 1 year. The risk of perforation and postoperative complications did not increase even if nonoperative management failed. Complicated appendicitis with localized abscess or phlegmon could also be treated conservatively, with a success rate of more than 80%. An interval appendectomy following successful nonoperative management is recommended only for patients over the age of 40 years to exclude appendiceal malignancy. The presence of appendicoliths increased the risk of treatment failure and complications; thus, it may be an indication for appendectomy. Nonoperative management is a safe and feasible option for both uncomplicated and complicated appendicitis. Patients should be informed that nonoperative management may be a safe alternative to surgery, with the possibility of treatment failure.

Original Article

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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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.

Video

CRC

Yellow enhancement imaging facilitates identification of surgical planes and key structures during challenging high anterior resection in a patient with obesity: Harpreet Singh, Reuben Suherman, Frederick H. Koh; Ann Coloproctol. 2025;41(2):169-172. Published online April 14, 2025; DOI: https://doi.org/10.3393/ac.2024.00465.0066

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