BACKGROUND: Ileal pouch anal anastomosis (IPAA) circumferential pouch advancement (CPA) involves full-thickness transanal 180-360° dissection of the distal pouch, allowing the advancement of healthy bowel to cover the internal opening of a vaginal fistula. We aimed to describe the long-term outcomes of this rare procedure.
METHODS: Patients with IPAA who underwent transanal pouch advancement for any indication between 2009 and 2021 were included. Demographics, operative details, and outcomes were reviewed. An early fistula was defined as occurring within 1 year of IPAA construction. Clinical success was defined as resolution of symptoms necessitating CPA, pouch retention, and no stoma at the time of follow-up. Figures represent the median (interquartile range) or frequency (%).
RESULTS: Over a 12-year period, nine patients were identified; the median age at CPA was 41 (36-44) years. Four patients developed early fistula after index IPAA, and five developed late fistulae. The median number of fistula repair procedures prior to CPA was 2 (1-2). All patients were diagnosed with ulcerative colitis at the time of IPAA and all late patients were re-diagnosed with Crohn\'s disease. Four (44.4%) patients had ileostomies present at the time of surgery, three (33.3%) had one constructed during surgery, and two (22.2%) never had a stoma. The median follow-up time was 11 (6-24) months. Clinical success was achieved in four of the nine (44.4%) patients at the time of the last follow-up.
CONCLUSIONS: Transanal circumferential pouch advancement was an effective treatment for refractory pouch vaginal fistulas and may be offered to patients who have had previous attempts at repair.

BACKGROUND: The impact of pregnancy on the development of pouchitis in women who have undergone total proctocolectomy with ileal pouch anal anastomosis for ulcerative colitis is poorly understood.
METHODS: This was a retrospective study of women with ulcerative colitis who underwent total proctocolectomy with ileal pouch anal anastomosis and subsequently became pregnant at Mount Sinai Hospital. The primary outcome was acute pouchitis during pregnancy or the postpartum period defined as symptoms of increased stool frequency and urgency treated with antibiotics.
RESULTS: A total of 44 women with 63 pregnancies and complete data were identified. Acute pouchitis occurred in 14 pregnancies (22.2%) in 12 women and in the postpartum period of 10 pregnancies (15.9%) in 9 women. Acute pouchitis occurred more frequently in women with a history of acute pouchitis immediately before, during, or after pregnancy.
CONCLUSIONS: Acute pouchitis was common during pregnancy and the postpartum period, likely due to microbial shifts. Although not statistically significant, these results provide insight into the impact of pregnancy on the risk of pouchitis and establish the framework for preconception counseling that focuses on prevention and management of pouchitis during pregnancy.

BACKGROUND: Ileoanal pouch is a demanding procedure with many potential technical complications including bladder or ureteral injury, while inflammation or stricture of the anastomosis or anal transition zone may lead to the formation of strictures and fistulae, including to the adjacent urethra. Pouch urinary tract fistulae are rare. We aimed to describe the presentation, diagnostic workup, and management of patients with pouch urinary at our center.
METHODS: Our prospectively maintained pouch registry was queried using diagnostic codes and natural language processing free-text searches to identify ileoanal pouch patients diagnosed with any pouch-urinary tract fistula from 1997 to 2022. Descriptive statistics and pouch survival using Kaplan-Meier curves are presented. Numbers represent frequency (proportion) or median (range).
RESULTS: Over 25 years, urinary fistulae were observed 27 pouch patients; of these, 16 of the index pouches were performed at our institution [rate 0.3% (16/5236)]. Overall median age was 42 (27-62) years, and 92.3% of the patients were male. Fistula locations included pouch-urethra in 13 patients (48.1%), pouch-bladder in 12 patients (44.4%), and anal-urethra in 2 (7.4%). The median time from pouch to fistula was 7.0 (0.3-38) years. Pouch excision and end ileostomy were performed in 12 patients (bladder fistula, n = 3; urethral fistula, n = 9), while redo ileal pouch-anal anastomosis (IPAA) was performed in 5 patients (bladder fistula, n = 3; urethral fistula, n = 2). The 5-year overall pouch survival after fistula to the bladder was 58.3% vs. 33.3% with urethral fistulae (p = 0.25).
CONCLUSIONS: Pouch-urinary tract fistulae are a rare, morbid, and difficult to treat complication of ileoanal pouch that requires a multidisciplinary, often staged, surgical approach. In the long term, pouches with bladder fistulae were more likely to be salvaged than pouches with urethral fistulae.

BACKGROUND: Patients with proctocolectomy and ileal pouch-anal anastomosis (PC-IPAA) face unique challenges in managing prostate cancer due to their hostile abdomens and heightened small bowel mucosa radiosensitivity. In such cases, external beam radiation therapy (EBRT) is contraindicated, and while brachytherapy provides a safer option, its oncologic effectiveness is limited. The Single-Port Transvesical Robot-Assisted Radical Prostatectomy (SP TV-RARP) offers promise by avoiding the peritoneal cavity. Our study aims to evaluate its feasibility and outcomes in patients with PC-IPAA.
METHODS: A retrospective evaluation was done on patients with PC-IPAA who had undergone SP TV-RARP from June 2020 to June 2023 at a high-volume center. Outcomes and clinicopathologic variables were analyzed.
RESULTS: Eighteen patients underwent SP TV-RARP without experiencing any complications. The median hospital stay was 5.7 h, with 89% of cases discharged without opioids. Foley catheters were removed in an average of 5.5 days. Immediate urinary continence was seen in 39% of the patients, rising to 76 and 86% at 6- and 12-month follow-ups. Half of the cohort had non-organ confined disease on final pathology. Two patients with ISUP GG3 and GG4 exhibited detectable PSA post-surgery and required systemic therapy; both had SVI, multifocal ECE, and large cribriform pattern. Positive surgical margins were found in 44% of cases, mostly Gleason pattern 3, unifocal, and limited. After 11.1 months of follow-up, no pouch failure or additional BCR cases were found.
CONCLUSIONS: Patients with PC-IPAA often exhibit aggressive prostate cancer features and may derive the greatest benefit from surgical interventions, particularly given that radiation therapy is contraindicated. SP TV-RARP is a safe option for this group, reducing the risk of bowel complications and promoting faster recovery.

OBJECTIVE: Transanal minimally invasive surgery has theoretical advantages for ileal pouch-anal anastomosis surgery. We performed a systematic review assessing technical approaches to transanal IPAA (Ta-IPAA) and meta-analysis comparing outcomes to transabdominal (abd-IPAA) approaches.
METHODS: Three databases were searched for articles investigating Ta-IPAA outcomes. Primary outcome was anastomotic leak rate. Secondary outcomes included conversion rate, post operative morbidity, and length of stay (LoS). Staging, plane of dissection, anastomosis, extraction site, operative time, and functional outcomes were also assessed.
RESULTS: Searches identified 13 studies with 404 unique Ta-IPAA and 563 abd-IPAA patients. Anastomotic leak rates were 6.3% and 8.4% (RD 0, 95% CI -0.066 to 0.065, p = 0.989) and conversion rates 2.5% and 12.5% (RD -0.106, 95% CI -0.155 to -0.057, p = 0.104) for Ta-IPAA and abd-IPAA. Average LoS was one day shorter (MD -1, 95% CI -1.876 to 0.302, p = 0.007). A three-stage approach was most common (47.6%), operative time was 261(± 60) mins, and total mesorectal excision and close rectal dissection were equally used (49.5% vs 50.5%). Functional outcomes were similar. Lack of randomised control trials, case-matched series, and significant study heterogeneity limited analysis, resulting in low to very low certainty of evidence.
CONCLUSIONS: Analysis demonstrated the feasibility and safety of Ta-IPAA with reduced LoS, trend towards less conversions, and comparable anastomotic leak rates and post operative morbidity. Though results are encouraging, they need to be interpreted with heterogeneity and selection bias in mind. Robust randomised clinical trials are warranted to adequately compare ta-IPAA to transabdominal approaches.

OBJECTIVE: The long-term prognosis of stapled and hand-sewn ileal pouch-anal anastomoses in familial adenomatous polyposis patients in Japan remains unknown. This study aimed to compare the overall survival in familial adenomatous polyposis patients who underwent stapled or hand-sewn ileal pouch-anal anastomosis.
METHODS: This multicenter retrospective study was conducted at 12 institutions in Shizuoka Prefecture, Japan. The clinical outcomes of 53 eligible familial adenomatous polyposis patients who underwent stapled (n = 24) and hand-sewn (n = 29) ileal pouch-anal anastomosis were compared.
RESULTS: The median follow-up duration was 171.5 months. The incidence of adenoma in the remnant rectum or anal transitional zone and metachronous rectal cancer was significantly more common in stapled ileal pouch-anal anastomosis (adenoma: stapled, 45.8%, vs. hand-sewn, 10.3%, p = 0.005; metachronous rectal cancer: 29.2%, vs. none, p = 0.002). The number of deaths was remarkably higher in stapled ileal pouch-anal anastomosis (p = 0.002). Metachronous rectal cancer was the most common cause of death. Overall survival was worse in stapled ileal pouch-anal anastomosis than in hand-sewn ileal pouch-anal anastomosis (120 months, 90.7% vs. 96.6%; 240 months, 63.7% vs. 96.6%; p = 0.044). Cox regression analysis revealed the independent effects of preoperative advanced colorectal cancer and stapled ileal pouch-anal anastomosis on overall survival.
CONCLUSIONS: Stapled ileal pouch-anal anastomosis negatively affected the overall survival of familial adenomatous polyposis patients. Therefore, hand-sewn ileal pouch-anal anastomosis is recommended for better prognosis in these patients.

OBJECTIVE: This systematic review and meta-analysis aimed to compare outcomes between stapled ileal pouch-anal anastomosis (IPAA) and hand-sewn IPAA with mucosectomy in cases of ulcerative colitis and familial adenomatous polyposis.
METHODS: This systematic review and meta-analysis was performed according to the Preferred Reporting Items for Systematic Review and Meta-analysis) guidelines 2020 and AMSTAR 2 (Assessing the methodological quality of systematic reviews) guidelines. We included randomized clinical trials (RCTs) and controlled clinical trials (CCTs). Subgroup analysis was performed according to the indication for surgery.
RESULTS: The bibliographic research yielded 31 trials: 3 RCTs, 5 prospective clinical trials, and 24 CCTs including 8872 patients: 4871 patients in the stapled group and 4038 in the hand-sewn group. Regarding postoperative outcomes, the stapled group had a lower rate of anastomotic stricture, small bowel obstruction, and ileal pouch failure. There were no differences between the 2 groups in terms of operative time, anastomotic leak, pelvic sepsis, pouchitis, or hospital stay. For functional outcomes, the stapled group was associated with greater outcomes in terms of seepage per day and by night, pad use, night incontinence, resting pressure, and squeeze pressure. There were no differences in stool Frequency per 24h, stool frequency at night, antidiarrheal medication, sexual impotence, or length of the high-pressure zone. There was no difference between the 2 groups in terms of dysplasia and neoplasia.
CONCLUSIONS: Compared to hand-sewn anastomosis, stapled ileoanal anastomosis leads to a large reduction in anastomotic stricture, small bowel obstruction, ileal pouch failure, seepage by day and night, pad use, and night incontinence. This may ensure a higher resting pressure and squeeze pressure in manometry evaluation.
BACKGROUND: The protocol was registered at PROSPERO under CRD 42022379880.

UNASSIGNED: Restorative proctocolectomy with ileal pouch-anal anastomosis (RPC-IPAA) is usually preferred surgical treatment for ulcerative colitis (UC). Although treated primarily medically, some refractory and complicated cases of UC may require surgical intervention. It eliminates chronic UC and the risk of colonic cancer. This research aims to study the risk factors associated with the development of postoperative complications.
UNASSIGNED: For this cohort study, we included all the patients who underwent RPC-IPAA in the Department of Gastroenterology, Sheth Vadilal Sarabhai General Hospital, Ahmedabad, over 6 years. Data of the patients were obtained retrospectively from the medical records. We collected the data and analyzed using appropriate statistical tests to look for preoperative patient variables associated with late complications. Late complications were defined as those developed after 1 month.
UNASSIGNED: Out of 32 patients, 19 were male and 13 were female, with an average age of 32.3 years at the time of operation. Thirteen patients developed complications such as pouchitis (n = 6), incisional hernia (n = 3), bowel obstruction (n = 2), pouch leakage (n = 1), and erectile dysfunction (n = 1). We found serum albumin <3 mg/dl and pancolitis associated with more postoperative late complications with P = 0.007 and 0.04, respectively, which is statistically significant.
UNASSIGNED: This study demonstrates that low preoperative albumin level and pancolitis are risk factors for late complications of IPAA. Preoperative nutritional support, especially albumin, could reduce late complications.
Résumé L\'IPAA (iléopouch-anal anastomose) est une procédure chirurgicale complexe qui, lorsqu\'elle est réalisée par un chirurgien expérimenté, peut donner d\'excellents résultats. De plus, il est important de comprendre les complications et leur prise en charge. Nos résultats mettent en lumière les facteurs associés aux complications chez les patients ayant subi une IPAA (iléopouch-anal anastomose) pour la CU (colite ulcéreuse). Dans notre population d\'échantillon, une concentration sérique d\'albumine préopératoire inférieure à 3 mg/dl et une pancolite ont été associées à des complications postopératoires. Cette étude démontre que des taux d\'albumine préopératoires bas et la pancolite sont des facteurs de risque de complications tardives de l\'IPAA. Un soutien nutritionnel préopératoire, en particulier l\'albumine, pourrait réduire les complications tardive. Mots-clés: Iléite de reflux, Hypoalbuminemia, pancolite, colite ulcéreuse, pouchite.

Chronic disorders of a pelvic pouch may result from structural complications secondary to postoperative surgical complications which manifest as a variety of symptoms. Knowing the crucial pitfalls of pouch construction can guide treatment options in patients suffering from signs of pouch failure.

BACKGROUND: Patients with ulcerative colitis and total abdominal proctocolectomy with ileal pouch-anal anastomosis have a 50% risk of pouchitis and a 5% to 10% risk of chronic pouchitis.
OBJECTIVE: The goal of the study was to compare pouch microbiota and stool bile acid composition in patients with chronic pouchitis, chronic pouchitis and primary sclerosing cholangitis, and normal pouch.
METHODS: Patients with ulcerative colitis and ileal pouch-anal anastomosis were recruited from March 20, 2014, to August 6, 2019, and categorized into normal pouch, chronic pouchitis, and chronic pouchitis/primary sclerosing cholangitis groups. Stool samples were subjected to bile acid quantification and 16S rRNA gene sequencing. Statistical comparisons of absolute bile acid abundance and pouch microbiota α-diversity, β-diversity, and taxa abundance were performed among the patient groups.
RESULTS: A total of 51 samples were analyzed. Both α-diversity (P = .01, species richness) and β-diversity (P = .001) significantly differed among groups. Lithocholic acid was significantly lower in patients with chronic pouchitis/primary sclerosing cholangitis than in those with chronic pouchitis (P = .01) or normal pouch (P = .03). Decreased α-diversity was associated with an increased primary to secondary bile acid ratio (P = .002), which was also associated with changes in β-diversity (P = .006).
CONCLUSIONS: Pouch microbiota α- and β-diversity differed among patients with normal pouch, chronic pouchitis, and chronic pouchitis/primary sclerosing cholangitis. Lithocholic acid level and primary to secondary bile acid ratio were highly associated with pouch microbiota richness, structure, and composition. These findings emphasize the associations between pouch microbiota and bile acid composition in dysbiosis and altered metabolism, suggesting that secondary bile acids are decreased in chronic pouchitis.
The α- and β-diversity of the pouch microbiota significantly differed in chronic pouchitis, chronic pouchitis and primary sclerosing cholangitis, and normal pouch. Microbiota changes were associated with stool bile acid composition. Decreased diversity was associated with decreased secondary bile acids.