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目的 分析直肠癌术后放疗后死亡原因及相关因素。方法 收集直肠癌术后放疗已死亡病例156例,87例行术后放疗,69例行复发后放疗。放疗方法为~(60)Co或15MVX线前后野外照射,放疗剂量DT37.8～80Gy,DT45Gy以上采用缩小野加量,疗程29～96d。前后野剂量比为1:2或2:3。结果 术后放疗死于局部复发及血行转移分别为34.5％、65.5％,复发后放疗死于复发未控及血行转移分别为66.7％、33.3％。结论 C期直肠癌术后应常规行术后放疗及时加用化疗,复发病人及时确诊尽快放疗。
Objective To analyze the causes of death after radiotherapy for rectal cancer and related factors. Methods A total of 156 cases of postoperative radiotherapy for rectal cancer had been collected. Among them, 87 cases received postoperative radiotherapy and 69 cases received post-recurrence radiotherapy. The radiotherapy method was field irradiation before and after ~(60)Co or 15MVX. The dose of radiation therapy was DT37.8~80Gy, and DT45Gy or more was used to reduce the dose of field. The course of treatment was 29 to 96 days. The wild dose ratio is 1:2 or 2:3. Results Postoperative radiotherapy died of local recurrence and hematogenous metastasis were 34.5% and 65.5% respectively. Recurrence after radiotherapy died of uncontrolled recurrence and hematogenous metastasis were 66.7% and 33.3%, respectively. Conclusions Postoperative radiotherapy for stage C rectal cancer should be followed by chemotherapy in a timely manner. Relapsed patients should be diagnosed as soon as possible by radiotherapy.