Abstract
Pouchitis and Crohn's like disease of the pouch (CLDP) are common in patients who undergo ileal pouch anal anastomosis for ulcerative colitis (UC). We conducted separate systematic reviews to evaluate the effectiveness of available interventions to prevent and treat pouchitis and CLDP. Through systematic literature reviews, we identified studies that evaluated the effectiveness of probiotics, antibiotics, 5-aminosalicylates, non-systemic oral corticosteroids, and advanced therapies for prevention and treatment of pouchitis and CLDP for meta-analysis. Primary outcomes were occurrence of pouchitis for pouchitis prevention and clinical response for pouchitis and CDLP treatment. We estimated the relative effectiveness of these interventions using the existing placebo response rates or hypothetical spontaneous improvement rates derived from clinical trials of pouchitis, UC and Crohn's disease. Probiotics were effective for primary (RR 0.18; 95% CI 0.05-0.62) and secondary prevention (RR 0.17; 95% CI 0.09-0.34) of pouchitis. Antibiotics were effective for treatment of acute and chronic pouchitis (12 cohorts; RR 1.67; 95% CI 1.34-2.01; response rate 65%; 95% CI 52-75) with ciprofloxacin and metronidazole-based regimens being more effective than rifaximin. Advanced therapies were effective for treatment of chronic antibiotic-refractory pouchitis (31 cohorts; RR 1.71; 95% CI 1.28-2.56; response rate 50%; 95% CI 43-57) and CLDP (10 cohorts; RR 2.49; 95% CI 1.87-3.73; response rate 74%; 95% CI 68-79) without significant difference between classes. Multiple medical interventions are effective for prevention and treatment of pouchitis and CLDP. Given the overall low quality of data, further research is needed to confirm these findings.
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