In patients with UC and severe rectal dysplasia, is IPAA, IRA, or permanent ileostomy preferred to minimize cancer risk while preserving bowel function
What is known
- IPAA is the safest surgical option regarding rectal cancer development after colectomy and is the gold standard. 1 - Because of cancer risk with severe dysplasia or colonic cancer, these patients should be offered completion proctectomy, and IRA is not recommended for them. 1 - IRA is indicated only in selected patients with absence of dysplasia or cancer, a rectum not actively involved, and normal sphincter function. 2 - Patients with high-grade dysplasia or invasive cancer should undergo total proctocolectomy; IPAA carries a very small risk of pouch neoplasia requiring ongoing pouchoscopy in high-risk patients. 3
What is unknown / caveats
- Excerpts note IRA gives better functional/QoL outcomes but these apply to patients without dysplasia - IPAA carries pelvic sepsis, infertility, and functional risks not eliminated by choosing it - Fertility-preservation considerations relate to women, not directly this patient - The excerpts do not quantify comparative bowel function specifically in dysplasia patients choosing among these three options.
## References
1. Abdalla M, Landerholm K, Andersson P, Andersson RE, Myrelid P. Risk of Rectal Cancer After Colectomy for Patients With Ulcerative Colitis: A National Cohort Study. Clin Gastroenterol Hepatol. 2017;15:1055-1060.e2. PMID: 28013111.
2. Fornaro R, Casaccia M, Caristo G, Batistotti P, Di Maira L, Atzori G, Oliva A, Stratta E, Razzore A, Caratto M, Caratto E, Giovinazzo D, Frascio M. Elective surgery for ulcerative colitis, ileo-rectal anastomosis or restorative proctocolectomy An Update. Ann Ital Chir. 2019;90:565-573. PMID: 31929176.
3. Ansell J, Grass F, Merchea A. Surgical Management of Dysplasia and Cancer in Inflammatory Bowel Disease. Surg Clin North Am. 2019;99(6):1111-1121. PMID: 31676051.
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⚠ Required context not in this corpus (moderate). SCENIC consensus (Laine 2015, PMID 25708752): dysplasia surveillance in colonic IBD uses high-definition colonoscopy with chromoendoscopy and TARGETED biopsy of visible lesions, and a completely endoscopically resected visible dysplastic lesion is followed by surveillance rather than reflex colectomy.
_Why this matters:_ Advising colectomy for an endoscopically resectable visible dysplastic lesion, or describing random-biopsy-only surveillance as current practice, can commit a patient to an avoidable proctocolectomy.
_Added by the landmark interlock. This corpus is surgical in scope and cannot admit the source paper (PMID 25708752). Not generated by the RAG._
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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._
Reviewer notes