Annals of Coloproctology

Articles in E-pub version are posted online ahead of regular printed publication.

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.

Oncologic outcomes and associated factors of colon cancer patients aged 70 years and older: Byeo Lee Lim, In Ja Park, Jun-Soo Ro, Young Il Kim, Seok-Byung Lim, Chang Sik Yu; Received June 7, 2023 Accepted September 11, 2023 Published online August 5, 2024; DOI: https://doi.org/10.3393/ac.2023.00367.0052 [Epub ahead of print]

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Abstract PDF

Purpose
The aim of this study was to examine the prognosis and associated risk factors, including adjuvant chemotherapy (CTx), in elderly patients with colon cancer.
Methods
This retrospective study included patients who underwent radical resection for colon cancer between January 2010 and December 2014 at Asan Medical Center. The effects of stage, risk factors, and chemotherapy on overall survival (OS) and recurrence-free survival (RFS) were compared in patients aged ≥70 and <70 years.
Results
Of 3,313 patients, 933 (28.1%) was aged ≥70 years. Of the 1,921 patients indicated for adjuvant CTx, 1,294 of 1,395 patients (92.8%) aged <70 years and 369 of 526 patients (70.2%) aged ≥70 years received adjuvant CTx. Old age (≥70 years) was independently associated with RFS in overall cohort. Among patients aged ≥70 years indicated for adjuvant CTx, the 5-year OS (81.6% vs. 50.4%, P<0.001) and RFS (82.9% vs. 67.4%, P=0.025) rates were significantly higher in those who did than did not receive adjuvant CTx. Additionally, adjuvant CTx was confirmed as independent risk factor of both OS and RFS in patients aged ≥70 years indicated for adjuvant CTx.
Conclusion
Old age was associated with poor RFS and adjuvant CTx had benefits in OS as well as RFS in elderly patients eligible for adjuvant CTx.

Citations

Citations to this article as recorded by

Immunological changes and recovery-related factors in older patients with colon cancer: A pilot trial
Byeo Lee Lim, Young Il Kim, Jong Lyul Lee, Chan Wook Kim, Yong Sik Yoon, Yousun Ko, Kyung Won Kim, In Ja Park
Journal of Geriatric Oncology.2025; 16(3): 102200. CrossRef
Stage II-III colorectal cancer in geriatric patients: Clinicopathological features and chemotherapy utilization
Yakup Duzkopru, Özlem Doğan
Turkish Journal of Clinics and Laboratory.2025; 16(1): 118. 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
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

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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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

Citations to this article as recorded by

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

Benign bowel disease

Implications of bacteriological study in complicated and uncomplicated acute appendicitis: Sorin Cimpean, Alberto Gonzalez Barranquero, Ion Surdeanu, Benjamin Cadiere, Guy-Bernard Cadiere; Received February 28, 2022 Accepted July 7, 2022 Published online November 10, 2022; DOI: https://doi.org/10.3393/ac.2022.00157.0022 [Epub ahead of print]

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Abstract PDF

Purpose
Bacteriological sample in the presence of intra-abdominal free fluid is necessary to adapt the antibiotherapy and to prevent the development of resistance. The aim was to evaluate the differences between uncomplicated acute appendicitis (UAA) and complicated acute appendicitis (CAA) in terms of bacterial culture results and antibiotic resistance, and to evaluate the factors linked with CAA.
Methods
We performed a single-center, retrospective observational study of all consecutive patients who presented with appendicular peritonitis and underwent emergent surgery in a tertiary referral hospital in Brussels, Belgium, between January 2013 and December 2020. The medical history, parameters at admission, bacterial culture, antibiotic resistance, and postoperative outcomes of 268 patients were analyzed. UAA was considered catarrhal or phlegmonous inflammation of the appendix. CAA was considered gangrenous or perforated appendicitis.
Results
Positive microbiological cultures were significantly higher in the CAA group (68.2% vs. 53.4%). The most frequently isolated bacteria in UAA and CAA cultures were Escherichia coli (37.9% and 48.6%, respectively). Most observed resistances were against ampicillin (28.9% and 21.7%) and amoxicillin/clavulanic acid (16.4% and 10.5%) in UAA and CAA, respectively. A higher Charlson Comorbidity Index, an elevated white blood cell count, an open procedure, and the need for drainage were linked to CAA. Culture results, group of bacterial isolation, and most common isolated bacteria were not related to CAA.
Conclusion
CAA presented a higher rate of positive cultures with increased identification of gram-negative bacteria. Bacterial culture from the peritoneal liquid does not reveal relevant differences in terms of antibiotic resistance.

Citations

Citations to this article as recorded by

Optimizing Antibiotic Management for Adult Patients Presenting with Acute Perforated Appendicitis: A Quality Improvement Study
Carlos Gallego-Navarro, Jason Beckermann, Maria E. Linnaus, Hayden J. Swartz, Shelby Stewart, Justin M. York, Ryan R. Gassner, Christopher A. Kasal, Annaliese G. Seidel, Corey J. Wachter, Kirstin J. Kooda, Jennifer R. Rich, Mark D. Sawyer
Surgical Infections.2025; 26(3): 143. CrossRef
The functional landscape of the appendix microbiome under conditions of health and disease
Md Shahjalal Sagor, Tarequl Islam, Noshin Tabassum Tamanna, Md. Kamrul Islam Bappy, Danishuddin, Md Azizul Haque, Maximilian Lackner
Gut Pathogens.2025;[Epub] CrossRef
Causative microbes and antibiotic susceptibility of acute appendicitis in adults and children
Chia-Hsiang Yu, Chia-Ning Chang, Chih-Chien Wang
Pediatrics & Neonatology.2024; 65(2): 159. CrossRef
The role of intraoperative swab during appendectomy in patients with uncomplicated and complicated appendicitis
Bruno Leonardo Bancke Laverde, Matthias Maak, Melanie Langheinrich, Stephan Kersting, Axel Denz, Christian Krautz, Georg F. Weber, Robert Grützmann, Maximilian Brunner
International Journal of Colorectal Disease.2023;[Epub] 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.

Citations

Citations to this article as recorded by

Tailgut Cyst—Gynecologist’s Pitfall: Literature Review and Case Report
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

Clinical trial of combining botulinum toxin injection and fissurectomy for chronic anal fissure: a dose-dependent study: Nuha Alsaleh, Abdullah I. Aljunaydil, Gaida A. Aljamili; Received March 24, 2021 Accepted July 27, 2021 Published online December 3, 2021; DOI: https://doi.org/10.3393/ac.2021.00213.0030 [Epub ahead of print]

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Abstract PDF

Purpose
Our aim was to evaluate the effectiveness of combining fissurectomy with botulinum toxin A injection in treating chronic anal fissures.
Methods
A single surgeon in Saudi Arabia conducted a nonrandomized prospective cohort study between October 2015 and July 2020. The cohort included 116 female patients with chronic anal fissures, with a mean age of 36.57±11.52 years, who presented to the surgical outpatient clinic and received a botulinum toxin injection combined with fissurectomy. They were followed up with at 1, 2, 3, 4, and 8 weeks to evaluate the effects of the treatment, then again at 1 year. The primary outcome measures were symptomatic relief, complications, recurrence, and the need for further surgical intervention.
Results
Treatment with botulinum toxin A combined with fissurectomy was effective in 99.1% of patients with chronic anal fissures at 1 year. Five patients experienced recurrence at 8 weeks, which resolved completely with a pharmacological sphincterotomy. Twelve patients experienced minor incontinence, which later disappeared. Pain completely disappeared in more than half of the patients (55.2%) within 7 to 14 days. Pain started to improve in less than 8 days among patients treated with a dose of 50±10 IU (P=0.002).
Conclusion
Seventy units of botulinum toxin A injection combined with a fissurectomy is a suitable second-line treatment of choice for chronic anal fissures, with a high degree of success and low rate of major morbidity.

Citations

Citations to this article as recorded by

Fissurectomy with mucosal advancement flap anoplasty: The end of a dogma?
M. Skoufou, J.H. Lefèvre, A. Fels, N. Fathallah, P. Benfredj, V. de Parades
Journal of Visceral Surgery.2023; 160(5): 330. CrossRef
La fissurectomie avec anoplastie muqueuse : la fin d’un dogme ?
Maria Skoufou, Jérémie H. Lefèvre, Audrey Fels, Nadia Fathallah, Paul Benfredj, Vincent de Parades
Journal de Chirurgie Viscérale.2023; 160(5): 363. CrossRef

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