In redo IPAA, does hand‑sewn anastomosis result in lower postoperative leak rates compared with stapled anastomosis

What is known

- In a redo IPAA series, ~75% required mucosectomy and hand-sewn anastomosis, which yielded similar morbidity and functional/QoL outcomes to stapled anastomosis in the redo setting. ¹ - Hand-sewn technique is frequently used in redo IPAA specifically as salvage after a failed stapled anastomosis, so the comparison is inherently confounded by indication. ² - In the primary-IPAA literature, large cohort and meta-analytic data (3,109 patients; 4,183-patient meta-analysis) found no significant difference in postoperative complications between hand-sewn and stapled anastomosis. ^2–4

What is unknown / caveats

- No retrieved study reports a head-to-head leak-rate comparison of hand-sewn vs stapled in redo IPAA - Redo hand-sewn use is confounded by indication (salvage of failed stapled anastomosis) - The redo-specific comparison rests on a single institutional series without a powered leak-rate endpoint.

## References

1. Esen E, Keshinro A, Remzi FH. Ileoanal Pouch: Pelvic Sepsis and Poor Function-Now What?. J Laparoendosc Adv Surg Tech A. 2021;31:867-874. PMID: 34252327.

2. Kirat HT, Remzi FH. Technical aspects of ileoanal pouch surgery in patients with ulcerative colitis. Clin Colon Rectal Surg. 2010;23:239-47. PMID: 22131894.

3. Han JY, Kim MJ, Moon SH, Kim YJ, Lim HT, Park J, Park JH, Kim HJ, Park JW, Ryoo SB, Park KJ, Jeong SY. Adenoma and carcinoma in the anal transitional zone following hand-sewn versus stapled ileal pouch-anal anastomosis in familial adenomatous polyposis. Fam Cancer. 2025;24:78. PMID: 41129004.

4. Guyton K, Kearney D, Holubar SD. Anastomotic Leak after Ileal Pouch-Anal Anastomosis. Clin Colon Rectal Surg. 2021;34:417-425. PMID: 34853564.

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_Draft, generated by the IBDology RAG and not yet clinician-reviewed. Answers are grounded in the retrieved literature listed above; a high faithfulness score means the answer matches its sources, not that the sources are correct._