Background: Afferent limb syndrome is a relatively rare cause of small bowel obstruction after restorative total proctocolectomy with ileal pouch-anal anastomosis for patients with ulcerative colitis or familial adenomatous polyposis. Discussion: This report describes three patients who developed recurrent small bowel obstruction after ileal pouch-anal anastomosis. The bowel obstruction was caused by torsion of the ileum at the inlet of the ileal J-pouch, which was thought to be a variant of afferent limb syndrome. This variant of afferent limb syndrome is characterized by a flexible afferent limb of the pelvic pouch due to the lack adhesion of the ileum in the abdominal cavity. Preoperative diagnosis required multiple series of contrast small bowel enemas. Strictureplasty and ileopexy effectively resolved the recurrent bowel obstruction caused by this variant of afferent limb syndrome.
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