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Difference in the Prognostic Benefit Between Extended and Segmental Colectomy for Patients With Neoplasia Associated
Ryo Seishima1, Koji Okabayashi1, Jun Okui1,2
1Department of Surgery, Keio University School of Medicine, Tokyo, Japan.
Diseases of the Colon and Rectum
|March 28, 2025
Summary
Extended colectomy (total proctocolectomy and subtotal colectomy) significantly improves survival for patients with neoplasia associated with ulcerative colitis compared to segmental colectomy. This nationwide study supports extended colectomy as the gold standard for managing this condition.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Colorectal Surgery
Background:
- Neoplasia associated with ulcerative colitis (UC) management often involves extended colectomy, but large-scale evidence is limited.
- Limited data exists on the prognostic benefits of different colectomy procedures for UC-related neoplasia.
Purpose of the Study:
- To evaluate the prognostic advantages of extended colectomy versus other surgical approaches for neoplasia in patients with ulcerative colitis.
- To compare outcomes between UC-associated neoplasia and sporadic colorectal cancer treated with extended colectomy.
Main Methods:
- A multicenter retrospective study analyzing data from 43 Japanese institutions.
- Medical records of 879 patients (1983-2020) with UC and intestinal neoplasia were reviewed.
- Five-year overall survival and disease-free survival were assessed, comparing total proctocolectomy, subtotal colectomy, and segmental colectomy.
Main Results:
- Extended colectomy (total proctocolectomy, subtotal colectomy) showed superior 5-year disease-free survival (87.8%, 83.9%) compared to segmental colectomy (72.0%) for UC-associated neoplasia.
- Multivariable analysis confirmed significantly better overall and disease-free survival with extended colectomy (p < 0.001).
- Extended colectomy outcomes were significantly better for UC-associated neoplasia than for sporadic cancer.
Conclusions:
- Extended colectomy is supported as the criterion standard for managing neoplasia associated with ulcerative colitis.
- Accurate differentiation between UC-associated neoplasia and sporadic cancer is crucial for optimal treatment decisions.
- This nationwide cohort study provides robust evidence for extended colectomy's efficacy in UC-related neoplasia.
