P310 Is ileoanal pouch excision a destination therapy for Inflammatory Bowel Disease? Data from a quaternary pouch referral center

Background Although ileal pouch-anal anastomosis (IPAA) is the surgical procedure of choice of many patients with ulcerative colitis and other conditions, some patients may require pouch excision (PEx). We aimed to describe our experience with pouch excisions and associated outcomes with an emphasis on late medical, endoscopic, and surgical interventions for inflammatory bowel disease (IBD). Methods We performed a retrospective review of a prospective colorectal surgery database. All pouch excisions performed at our quaternary pouch center from 2006 – 2019 were included; pelvic exenteration, PEx with neo-IPAA or Kock-pouch were excluded. Early complications occurred <30 days, late complications >30 days. Medications taken prior to PEx were included if taken within 12 weeks of pouch excision. Data are reported in frequency (proportion) or median (interquartile range). Results A total of 197 cases met inclusion criteria, and were performed by 23 surgeons, median 6 excision (IQR 2 - 14) cases over a 14-year period: of these, 105 had their index pouch created at our quaternary pouch referral center (overall PE rate 2.7%). Indications for PEx are shown in Table 1. Median time to PEx was 7 years and 94 (48%) patients had re-diversion prior to PEx. Medications prior to PEx: 34 (17%) steroids, 27 (14%) biologics, and 22 (11%) immune-modulators. The median duration of surgery was 4 hours (3.2-5). The median estimated blood loss was 263 ml (150-500) with 24 patients (12%) requiring at least one unit of packed red blood cells intra-operatively. Most pouch excisions were done through laparotomy; 2 cases (1%) were started robotically and 11 cases (10%) laparoscopically with a 26% conversion rate. Intersphincteric dissection was used in 172 cases (87%) while 26 cases (13%) required abdomino-perineal resection, of which 58% had a neoplastic indication. Intra-operative, early and late complications are shown in Table 2; 40 patients (20%) had perineal wound complications in less than 30 days, while 26 patients (13%) had long-term perineal wound complications, of which 15 patients required return to the operating room. After PEx, 23 patients out of 167 patients (14%) required continuation of IBD medications, 6 patients (3.6%) required surgery, and 4 patients (2.4%) required endoscopic intervention for their IBD. Conclusion In this large series of ileoanal pouch excisions, we found that perineal wound complications are common, but infrequently require operative intervention. For most IBD patients in this series, pouch excision did appear to be a destination therapy for IBD with a small minority requiring ongoing medical therapy for IBD.

Transoral Laser-Assisted Diverticulectomy: Swallow Study Results after Complete Endoscopic Pouch Excision for Zenker’s Diverticulum

Objective: Transoral endoscopic laser-assisted diverticulotomy (TELD) with diverticulectomy and diverticuloplasty (TELD + DD) for the management of Zenker’s diverticulum (ZD) has been utilized by our institution since 2016 in attempts to reduce residual pouch size. This technique involves complete endoscopic pouch excision with partial advancement of mucosal flaps. Our study compares the subjective outcomes, objective outcomes, and complication rates between TELD and TELD + DD. Methods: A retrospective cohort study was performed on patients who underwent TELD or TELD + DD by a single surgeon at a tertiary academic center (2013-2019). Videofluoroscopic swallow studies (VFSS) with esophagram, Eating Assessment Tool (EAT-10), Reflux Symptom Index (RSI), and Functional Outcome Swallowing Scale (FOSS) were collected at preoperative and 3 month follow-up visits. A single blinded reviewer recorded height, width, and depth of pre and postoperative pouches with volumetric analysis performed assuming an ellipsoid shape. Comorbidities, complications, postoperative course, and recurrence were recorded. Results: Of the 75 patients that met criteria, 27 underwent TELD + DD and 48 underwent TELD. Eighteen TELD + DD and 37 TELD had both pre and post-operative VFSS. TELD + DD and TELD had a 96 ± 7% and 87 ± 16% reduction in pouch volume, respectively ( t-test; P = .01). Complications (TELD + DD 7%, TELD 17%, fisher’s exact; P = .31) and final subjective outcomes after adjusting for initial were not significantly different between methods (EAT-10 with TELD + DD ∆ + 1.3, P = .18; RSI ∆ + 1.4, P = .29; FOSS ∆-0.02, P = .91). One short-term recurrence was reported with TELD. Conclusion: Use of TELD + DD is associated with a statistically significantly decreased residual pouch size with no significant difference in short-term subjective outcomes. Complication rates and short-term recurrence rates are comparable. Long-term recurrence rates will require further studies to characterize. Level of Evidence: Level 3.

Ileal Pouch Excision can Be Performed With Similar Outcomes in Obese Patients Compared to Nonobese Counterparts: An Assessment From American College of Surgeons National Surgical Quality Improvement Program

Background Failed pouches may tend to be managed with only a loop ileostomy in obese patients due to some safety concerns. The effect of obesity on ileal pouch excision outcomes is poorly studied. In our study, we aimed to assess the short-term outcomes after ileal pouch excision in obese patients compared to their nonobese counterparts. Methods The patients who underwent pouch excision between 2005 and 2017 were included using ACS-NSQIP participant user files. The operative outcomes were compared between obese (BMI ≥30 kg/m2) and nonobese (BMI<30 kg/m2) groups. Results There were 507 pouch excision patients included of which eighty (15.7%) of them were obese. Physical status of the obese patients tended to be worse (ASA>3, 56.3 vs 42.9%, P = .027). There were more patients who had diabetes mellitus (DM) and hypertension (HT) in the obese group (26.3% vs. 11.2%, P = .015; 11.3 vs. 4.4%, P < .001, respectively). Operative time was similar between 2 groups (mean ± SD, 275 ± 111 vs. 252±111 minutes, P = .084). Deep incisional SSI was more commonly observed in the obese group (7.5 vs 2.8%, P = .038). In multivariate analysis, only deep incisional SSI was found to be independently associated with obesity (OR: 2.79, 95% CI: 1.02-7.67). Obese patients were readmitted more frequently than nonobese counterparts (28.3 vs 16%, P = .035). The length of hospital stay was comparable [median (IQR), 7 (4-13.5) vs. 7 (5-11) days, P = .942]. Conclusion Ileal pouch excision can be performed in obese patients with largely similar outcomes compared to their nonobese counterparts although obesity is associated with a higher rate of deep space infection.

THE CLINICAL FEATURES AND PROGNOSTIC VALUE OF INFLAMMATORY POLYPS IN THE J POUCH OF PATIENTS WITH INFLAMMATORY BOWEL DISEASE TREATED BY PROCTOCOLECTOMY WITH ILEAL POUCH-ANAL ANASTOMOSIS

Background Patients with inflammatory bowel disease (IBD) sometimes require proctocolectomy with ileal pouch-anal anastomosis (IPAA) due to medically refractory colitis or neoplasia. However, pouchitis can develop in up to 80% of patients after the surgery. Given that previous studies demonstrated an association between chronic pouchitis and inflammatory polyps, we hypothesize that inflammatory polyps can be a predictor for pouch outcomes. This study assesses the frequency, risk factors, and prognosis of the J pouch with inflammatory polyps. Methods This is a retrospective single-center study of IBD patients treated by total proctocolectomy with IPAA and who subsequently underwent pouchoscopies at the University of Chicago between January 2007 and September 2019. We reviewed the endoscopic findings in different anatomic areas of the pouch: the pre-pouch ileum, inlet, “tip of the J”, proximal and distal pouch, anastomosis, rectal cuff, anal canal, and perianal area. Endoscopic findings included erythema/edema, erosions/friability, ulcerations, stenosis, granularity, loss of vascular pattern, and inflammatory polyps. To compare the J pouch with and without inflammatory polyps, we evaluated all available pouchoscopies and included any patient who had inflammatory polyps noted at least once. Demographic and clinical data were also assessed. Fisher’s test was used for a univariate analysis to assess factors contributing to inflammatory polyps in the J pouch. Logistic regression analysis was performed by including univariate variables with a P-value &lt; 0.05. To assess the relevance between inflammatory polyps and pouch excision, log-rank test and Kaplan-Meier curve were used. Results We reviewed 1,195 pouchoscopies from 426 IBD patients who underwent proctocolectomy with IPAA and identified 61 patients (14.3%) with at least 1 inflammatory polyp in the J pouch. The most common anatomical location developing inflammatory polyps was the distal pouch (23, 38%), followed by the proximal pouch (21, 34%), afferent limb (13, 21%), rectal cuff (9, 15%), and inlet (7, 11%). Multivariable analysis showed that inflammatory polyps were significantly associated with male sex (OR = 2.8; 95% CI = 1.4–5.3; P = 0.002), postoperative anti-TNF drugs (OR = 2.9; 95% CI = 1.6–5.4; P &lt; 0.001), and pouchitis (OR = 6.1; 95% CI = 1.4–25.9; P = 0.015) (Table). Kaplan-Meier curve showed that inflammatory polyps significantly increased the risk of pouch excision (P = 0.03) (Figure 1). Conclusion Our analysis found that more than 10% of IBD patients with a J pouch developed inflammatory polyps. Male patients had an increased risk of inflammatory polyps in the J pouch. Furthermore, our study suggested that inflammatory polyps can develop in patients with pouchitis requiring anti-TNF drugs and are an independent predictor of pouch excision. Table Figure 1

IS ILEOANAL POUCH EXCISION A DESTINATION THERAPY FOR INFLAMMATORY BOWEL DISEASE? DATA FROM A QUATERNARY POUCH REFERRAL CENTER

Background Although ileal pouch-anal anastomosis (IPAA) is the surgical procedure of choice of many patients with ulcerative colitis and other conditions, some patients may require pouch excision (PE). We aimed to describe our experience with pouch excisions and associated outcomes with an emphasis on late medical, endoscopic, and surgical interventions for IBD. Methods We performed a retrospective review of a prospective colorectal surgery database. All PEs performed at our quaternary pouch center from 2006 – 2019 were included; pelvic exenteration, PE with neo-IPAA or Kock-pouch were excluded. Early complications occurred &lt;30 days, late complications &gt;30 days. Medications taken prior to PE were included if taken within 12 weeks of pouch excision. Data are reported in frequency (proportion) or median (interquartile range). Results A total of 197 cases met inclusion criteria, and were performed by 23 surgeons, median 6 excision (IQR 2 - 14) cases over a 14-year period: of these, 105 had their index pouch created at our quaternary pouch referral center (overall PE rate 2.7%). Indications for PE are shown in Table 1. Median time to PE was 7 years and 94 (48%) patients had re-diversion prior to PE. Medications prior to PE: 34 (17%) steroids, 27 (14%) biologics, and 22 (11%) immune-modulators. The median duration of surgery was 4 hours (3.2–5). The median estimated blood loss was 263 ml (150–500) with 24 patients (12%) requiring at least one unit of packed red blood cells intra-operatively. Most pouch excisions were done through laparotomy; 2 cases (1%) were started robotically and 11 cases (10%) laparoscopically with a 26% conversion rate. Intersphincteric dissection was used in 172 cases (87%) while 26 cases (13%) required abdomino-perineal resection, of which 58% had a neoplastic indication. Intra-operative, early and late complications are shown in Table 2; 40 patients (20%) had perineal wound complications in less than 30 days, while 26 patients (13%) had long-term perineal wound complications, of which 15 patients required return to the operating room. After PE, 23 patients (12%) required continuation of IBD medications, 6 patients (3.1%) required surgery, and 4 patients (2%) required endoscopic intervention for their IBD. Conclusions In this large series of ileoanal pouch excisions, we found that perineal wound complications are common, but infrequently require operative intervention. For most IBD patients in this series, pouch excision did appear to be a destination therapy for IBD with a small minority requiring ongoing medical therapy for IBD.

Pouch failures following restorative proctocolectomy in ulcerative colitis

Purpose Restorative proctocolectomy (RPC) is the most common operation in ulcerative colitis. Nevertheless, permanent ileostomy will sometimes be unavoidable. The aim was to evaluate the reasons for pouch failure and early morbidity after pouch excision. Methods The number and the reasons for pouch failures were analysed in patients undergoing RPC 1985-2016. Results Out of 491 RPC patients, 53 experienced pouch failure (10 women, 43 men); 52 out of 53 underwent pouch excision. The cumulative risk for excision at 5, 10 and 20 years was 5.6, 9.4 and 15.5%, respectively. The reasons for failure included septic events such as fistula in 12 (23%), chronic pouchitis in 11 (21%) and leakage in 8 (15%) patients. Functional reasons for pouch failure were recorded as poor function in 16 (30%), incontinence in 12 (23%) and stricture in 12 (23%) patients. Multiple causes for pouch failure were recorded for individual patients. Seven cases of Crohn’s disease were found among the failure cases: two before pouch excision and five after. Altogether, 15 Crohn’s disease diagnoses were set in the RPC cohort, giving a percentage of 47% of pouch failure in this disorder. A complication occurred in 23 (44%) patients within 30 days after surgery; 16 were mild (Clavien-Dindo grades I–II). Conclusions Eleven percent of RPC patients suffered pouch failure: more men than women. The reasons were multiple. Crohn’s disease created a risk of failure, but a half of these patients maintained the pouch. Morbidity after pouch excision was moderate, but in most cases slight.