Sepsis is a Major Predictor of Failure After Ileal Pouch-Anal Anastomosis

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PURPOSE:This study aimed to determine the risk of ileal pouch-anal anastomosis failure and factors predictive of failure overall and in patients with septic complications.METHODS:Patients were identified through a prospectively maintained patient registry. All patients registered in the Mount Sinai Hospital Inflammatory Bowel Disease database who had an ileal pouch-anal anastomosis for more than 12 months were included in the study. Pouch failure was defined as ileal pouch-anal anastomosis excision or permanent diversion. Cox proportional hazard models with death as a competing risk were created, modeling time to failure as the outcome of interest for all patients and for the subgroup of patients with septic complications.RESULTS:The study included 1,554 patients. One hundred six patients experienced an ileal pouch-anal anastomosis failure (6.8%), 49 (46.2%) of these failures were caused by septic complications. Independent predictors of failure included Crohn’s disease (hazard ratio 7.5, 95% confidence interval [4.7, 12.0]) and postoperative sepsis (hazard ratio 6.6, 95% confidence interval [4.4, 9.8]). In the subgroup of patients with failure due to postoperative septic complications, independent predictors of failure were Crohn’s disease (hazard ratio 2.7, 95% confidence interval [1.3, 5.7]) and presence of a pouch fistula (hazard ratio 2.6, 95% confidence interval [1.3, 5.2]).CONCLUSION:Septic complications are the most common cause of ileal pouch-anal anastomosis failure. Careful patient selection and the prevention of septic complications may decrease the risk of this failure.

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