Local Recur and Survival According to the Length of Distal Margin in Rectal Cancer

摘要

Among 584 patients, there were 151 with <=10-mm DM(group I), 212 with 1.1 to 2cm(II), 130 with 21 - 3cm(III), and 91 with >3.0cm DM(IV), Median follow-up was 21 months. Distal margin did not correlate with local recurrence (P = .06), and the rate of local recurrence was 4.3% in total The survival of group I patients were better than other groups (p = .042) by univariate analysis. Kaplan-Meier estimates of survival at 5 years for the group I was 82,2%, II 65.6, III 60 2, and IV 61.8%. Group I was different in several factors such as less advanced, and more common in preoperative chemoradiation therapy (11%) than other groups. Our result suggests that for patients with rectal cancer undergoing curative sphincter preserving resection, distal margins <=1 cm does not seem to compromise oncological outcome.