Abstract
After ileal pouch-anal anastomosis, a pouch/anal canal pressure gradient is present such that mean pressures in the anal canal exceed pressures in the pouch facilitating fecal continence. Such a relationship was not present in incontinent patients. PURPOSE: Our aim was to evaluate characteristics of pouch pressures dynamically in continent and incontinent patients following ileal pouch-anal anastomosis (IPAA). METHODS: A multichannel microtransducer catheter was positioned in eight continent patients and nine incontinent patients after IPAA. Twenty-four-hour recordings of pouch pressures and large pressure wave contractions were recorded when patients were awake, asleep, and after evacuation. RESULTS: When patients were awake, pouch pressures were similar. However, nocturnal pouch pressures were higher in the incontinent group (P <0.05). Large pressure wave amplitude was higher in incontinent patients when awake and asleep (P <0.05). Moreover, pouch pressures failed to decline in the incontinent group after evacuation, unlike continent patients. CONCLUSION: Compared with continent patients, incontinent patients after IPAA had persistently high phasic and basal pouch pressures at night and following pouch evacuation.
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Grotz, R.L., Pemberton, J.H., Ferrara, A. et al. Heal pouch pressures after defecation in continent and incontinent patients. Dis Colon Rectum 37, 1073–1077 (1994). https://doi.org/10.1007/BF02049806
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DOI: https://doi.org/10.1007/BF02049806