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本文报告１９８５年６月～１９８９年１２月在我院手术治疗的Ｃ_３期直肠癌病人６６例，其中单纯手术４４例，术后补充预防性放射治疗者２２例。观察满５年后，术后辅助放疗组３、５年生存率分别为５０％、１３．６％，均比单纯手术组高；其２．５年复发率分别为３６．４％，４５．５％，２．５年。复发加转移率分别为３６．４％、５９．１％，均比单纯手术组低。两组统计学处理有显著差异。
This article reports 66 cases of C3 rectal cancer patients treated in our hospital from June 1985 to December 1989, of which 44 cases were treated with surgery alone and 22 cases were treated with prophylactic radiation therapy after surgery. After 5 years of observation, the 3-year and 5-year survival rates of the postoperative adjuvant radiotherapy group were 50% and 13.6%, respectively, which were higher than those of the surgery alone group. The 2.5 year recurrence rates were 36.4%, respectively. 5%, 2.5 years. The rates of relapse and metastasis were 36.4% and 59.1%, respectively, lower than those in the surgery alone group. There was a significant difference in statistical treatment between the two groups.