Functional and manometric outcomes after redo-ileal pouch anal anastomosis in patients with ulcerative colitis.

AIM: To retrospectively analyze manometric findings in patients with ulcerative colitis who underwent redo-ileo anal anastomosis for pouch-related complications.

METHODS: Functional and anal manometric parameters were analyzed before, immediately after, and 6 months after the procedure in 17 patients who underwent redo-ileo anal anastomosis between 2001 and 2012.

RESULTS: Of the 17 patients, 13 showed stoma closure and 9 have maintained gastrointestinal continuity with functional pouches. Manometric findings were similar before and immediately after redo-ileo anal anastomosis, including length of high-pressure zone (p = 0.11) and maximum resting and (p = 0.060) squeezing (p = 0.69) pressures, but maximum resting pressure improved significantly 6 months later (p = 0.021). Univariate analysis showed that ulcerative colitis duration <3 years before ileo anal anastomosis (p = 0.0073), interval between pouch-related complications and ileo anal anastomosis <2 years (p = 0.040), and persistent abscess before diversion ileostomy (p = 0.0024) were significant risk factors for pouch failure after redo-ileo anal anastomosis.

CONCLUSIONS: Although maximum resting pressure was significantly reduced 3 months after redo-ileo anal anastomosis, it returned to preoperative levels after 6 months. The length of the high-pressure zone and the maximum squeezing pressure were not affected by this procedure.