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Objectives: Fecal incontinence (FI) is a multifactorial disorder, the etiology of which is not fully understood. Recent data have shown the significance of rectoanal intussusception (RAI) in the evaluation of FI. The present study aimed to determine the incidence of RAI in patients with FI. Methods: Between June 2010 and February 2016, 74 patients, who were evaluated using evacuation proctography, anorectal manometry, ultrasound, and incontinence scores, were included in this study. RAI was diagnosed when the apex of the rectal intussusception (RI) impinged on the internal anal orifice or was intra-anal, based on the images taken during maximal straining defecation at evacuation proctography. The characteristics of RAI patients were further analyzed. Results: There were 59 women (80%) and 15 men, with a median age of 74 (52-93) years. Sixty patients (81%) had RI, and 56 (76%) showed RAI. The incidence of RAI among the 32 patients with FI alone and the 42 patients with FI and symptoms of obstructed defecation (OD) was 72% (23/32) and 79% (33/42), respectively. The incidence of RAI was not significantly different between the patients with normal manometry (maximum resting pressure [MRP] 55 cmH2O and maximum squeeze pressure [MSP] 150 cmH2O, n=26) and those with subnormal manometry (MRP |
