In patients with early postoperative pouch inflammation and a smoking history, does prophylactic immunomodulator therapy reduce the risk of pouch failure

What is known

- In ileocolic resection cohorts, prophylactic immunomodulator or biologic therapy within the first ~6 months was protective against early recurrence, while therapy started later was not. ¹ - Smoking is an established risk factor for postoperative crohn's recurrence and further surgery, and guidelines classify active smokers as high-risk warranting closer monitoring and cessation counseling. ^2,3 - In the pouch literature, immunosuppression/biologics are recommended to be limited to patients at high risk of pouch failure, and validated risk factors remain incompletely defined. ^4,5 - Active smoking is among reported risk factors for crohn's disease of the pouch. ⁵

What is unknown / caveats

- No pouch-specific study tests prophylactic immunomodulators for early pouch inflammation - Prophylaxis evidence is from ileocolic-resection crohn's, not IPAA - Harm signal: preoperative immunomodulator/steroid use associated with septic complications and chronic pouchitis in some cohorts - Whether medical therapy alters the natural course of pouch inflammation or crohn's of the pouch to reduce failure is explicitly unresolved in the retrieved evidence.

## References

1. [No authors listed]. Low Rates of Surgical Recurrence Following Ileocolic Resections for Crohn's Disease in the Biologic Era. Inflamm Bowel Dis. 2026;32(3):421-432. PMID: 41332286.

2. [No authors listed]. Incidence and Management of Recurrence in Patients with Crohn's Disease Who Have Undergone Intestinal Resection: The Practicrohn Study. Inflamm Bowel Dis. 2017;23(10):1840-1846. PMID: 28644182.

3. Nicholls J, Mortensen Neil J, Tøttrup A. [Surgery for colitis ulcerosa and Crohn's disease in the era of modern medical therapy]. Ugeskr Laeger. 2011;173(14):1050-2. PMID: 21463557.

4. Uchino M, Ikeuchi H, Matsuoka H, Bando T, Takesue Y, Tomita N. Clinical features and management of pouchitis in Japanese ulcerative colitis patients. Surg Today. 2013;43:1049-57. PMID: 23076686.

5. Shen B, Remzi FH, Brzezinski A, Lopez R, Bennett AE, Lavery IC, Queener E, Fazio VW. Risk factors for pouch failure in patients with different phenotypes of Crohn's disease of the pouch. Inflamm Bowel Dis. 2008;14(7):942-8. PMID: 18300279.

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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._