Closure of pelvic peritoneum with bladder peritoneum flap reconstruction after laparoscopic extralevator abdominoperineal excision: A prospective stage II study.

BLAPER is safe and may prevent the small bowel from descending into the retrourogenital space and subsequently developing PH and SBO without increasing the intraoperative and postoperative complications. BLAPER may serve as an option when the primary suture of the pelvic peritoneum is not feasible.