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1981～1991年放射治疗Ⅲ或Ⅳ期头颈部鳞癌患者142例,可分析者100例,均随访12个月以上,用~(60)Co、4-MV或6-MV直线加速器进行治疗.常规分割每日1次(QD)组50例,平均年龄56.7岁,T4占28%;先对整个头颈区进行照射,180～200cGy/次,达5000cGy左右后缩野,用7～9MeV电子线局部追加至6600～7200cGy,平均6970cGy.加速超分割同时局部追加疗法每日2次(BID)组50例,平均年龄59.9岁,T4占54%;在常规分割放射治疗的基础上局部追加,于当日第1次治疗后
A total of 142 patients with stage Ⅲ or Ⅳ squamous cell carcinoma of the head and neck radiotherapy from 1981 to 1991 were enrolled in this study. All 100 patients were analyzed. All patients were followed up for 12 months and treated with ~ (60) Co, 4-MV or 6-MV linear accelerator .All patients were divided into two groups: 50 cases in the QD group, with a mean age of 56.7 years and T4 (28%). The entire head and neck area was irradiated 180 ~ 200cGy / The local line was added to 6600 ~ 7200cGy, with an average of 6970cGy.Accelerated hyperfractionation plus local additional therapy 50 times a day (BID) group, mean age 59.9 years, T4 accounted for 54%; on the basis of conventional fractionated radiotherapy local append, After the first treatment on the day