Stapled ileoanal pouches without loop ileostomy: a prospective study in 86 patients

Area of Science:

• Surgical Gastroenterology
• Colorectal Surgery
• Surgical Oncology

Background:

• Restorative proctocolectomy with stapled ileal pouch-anal anastomosis (IPAA) offers an alternative to hand-sewn techniques.
• Temporary defunctioning loop ileostomy can mitigate anastomotic leakage but adds patient burden and hospital stay.

Purpose of the Study:

• To evaluate the perioperative outcomes of stapled IPAA without routine defunctioning loop ileostomy.
• To assess the safety and efficacy of omitting defunctioning loop ileostomy in restorative proctocolectomy.

Main Methods:

• Prospective study of 86 consecutive patients undergoing stapled IPAA.
• Defunctioning loop ileostomy was omitted unless specific criteria for increased anastomotic insufficiency risk were met.
• Follow-up ranged from 36 to 96 months.

Main Results:

• Patients without a defunctioning loop ileostomy had a median hospital stay of 9 days versus 19 days for those with one.
• Complications included pelvic sepsis (8 patients), residual rectal mucosa inflammation (5), bowel obstructions (10), and fistulas (3).
• At 12 months, median evacuation frequency was 6/24h, with ~10% experiencing minor incontinence or urgency; no major incontinence occurred.

Conclusions:

• Stapled IPAA without routine defunctioning loop ileostomy is a reliable, time-saving method with shorter hospital stays.
• A defunctioning loop ileostomy is recommended for patients at increased risk of anastomotic complications.
• Precise dissection to avoid residual rectal mucosa is crucial to prevent inflammation and dysplasia.