Observational studyWorld journal of surgery2025
Long-term outcomes following the resection of screen-detected right-sided colon cancer.
Observational study in World journal of surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
backgroundThe relative outcomes following the resection of screen-detected right-sided colon cancer compared to symptomatic cases are unknown. In this study, short and long-term outcomes after right-sided colectomy in screen-detected colon cancer are compared with symptomatic cases, both emergency and elective.
methodsA prospective observational cohort study of patients, including both screen-detected and symptomatic patients (elective and emergency resections), undergoing right-sided colectomy for colon cancer (2010-2020) in a tertiary care unit was conducted. Each patient was followed up for long-term recurrence and survival.
resultsA total of 909 patients (median age, 70; IQR, 58-82; male, 52%) were included (151 patients (16.6%) screen-detected; 598 (65.8%) elective and 160 (17.6%) emergency). Screen-detected patients were more likely to have T1 or T2 lesions compared to elective and emergency groups (T1: 14.6% vs. 3.8% vs. 0.6% p < 0.001; T2: 16.6% vs. 8.9% vs. 3.1% p < 0.001), but were less likely to have T3 or T4 lesions (p < 0.001), respectively. Rates of N0 were higher in the screen-detected group (68.9% vs. 63.5% vs. 41.9%, respectively; p < 0.001). 98% of the screen-detected group achieved R0 resection compared to 93.3% of elective and 79.4% of emergency patients (p < 0.001). At 5-years following resection, overall survival for the screen-detected, elective, and emergency groups were 85.4%, 75.4%, and 53.1%, respectively (p < 0.001). Recurrence at 5-year post-resection were 8%, 15.1%, and 22.5% for the screen-detected, elective, and emergency groups, respectively (p < 0.001). DISCUSSION: When considering right-sided colon cancer alone, screen-detected cancers have a lower long-term recurrence rate, lower rates of postoperative complication, and superior survival compared to symptomatic groups following resection.
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