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目的 探讨胃癌术中照射范围、剂量和疗效。方法 对 10 6例胃癌进行术中放射治疗。采用 6～ 16MeV电子线 ,剂量在 10～ 30Gy之间 ,靶区范围以瘤床及周围淋巴引流区为主。与 1975年至 1989年期间 4 4 1例单纯手术进行对照。结果 接受治疗的 10 6例患者中无近期并发症 ,照射范围和剂量均适用于临床。Ⅰ、Ⅳ期胃癌术中放射治疗不能提高 5年生存率 ,Ⅱ、Ⅲ期胃癌术中放射治疗提高 5年生存率 19.4 %、15 .3%结论 胃癌术中放射治疗不增加术后并发症 ,能提高Ⅱ、Ⅲ期胃癌 5年生存率。术中放射治疗是治疗胃癌较安全的重要手段之一。
Objective To investigate the range, dose and efficacy of surgery for gastric cancer. Methods 106 cases of gastric cancer undergoing intraoperative radiotherapy. Using 6 ~ 16MeV electronic wire, the dose between 10 ~ 30Gy, the target area to the tumor bed and the surrounding lymphatic drainage area based. The controls were compared with 441 cases of simple surgery between 1975 and 1989. Results There were no recent complications in the 106 patients undergoing treatment, and the range and dose of radiation were suitable for clinical use. Intraoperative radiotherapy of stage Ⅰ and Ⅳ gastric cancer can not improve 5-year survival rate, stage Ⅱ and Ⅲ of gastric cancer 5-year survival rate of radiotherapy to improve survival 19.4%, 15.3% Conclusion Intraoperative radiotherapy of gastric cancer does not increase postoperative complications, Can improve the Ⅱ, Ⅲ gastric cancer 5-year survival rate. Intraoperative radiotherapy is an important means of treatment of gastric cancer more secure.