Peristaltic Contractility: Another Factor Impacting IPAA Function?

This study aims to investigate the phenomenon of high-amplitude pouch contractile waves and their impact on functional results in patients undergoing ileal pouch-anal anastomosis following total proctocolectomy for ulcerative colitis. This is an observational cohort study evaluating pouch manometric data at an early (study 1, < 6 months s/p ileostomy closure) and delayed (study 2, > 5 months after study 1) time point. High-amplitude contractions were defined as peaks ≥ 20 mmHg over baseline. Pouch functional measures and quality of life outcomes were correlated with contractile amplitude and frequency. Thirty-three patients were included in this study. Contractile frequency decreased from study 1 to study 2 (0.14 vs. 0.07 contractions/min). Peristaltic contractility was absent in 18/33 patients (55