摘要
目的:了解外照射结合高剂量率腔内照射治疗非小细胞肺癌长期疗效。方法:1990年12月至1993年12月间,我院外照射结合高剂量率腔内照射治疗非小细胞肺癌资料完整者45例。外照射开始射野包括原发灶、肺门、纵隔淋巴结。前后对穿照射剂量达40Gy后,避开脊髓水平照射或前后对穿照射,外照射剂量78%的患者接受DT 60Gy;腔内近距离治疗采用高剂量率Micro Selectron后装治疗机,通过光导纤维支气管镜将导管插入病变部位的叶或段支气管内,每次置管1~2根,剂量参考点均选在施用器中轴外10mm处,剂量为5~24Gy/1~3次,腔内治疗在外照射之前、之中或之后进行,腔内治疗的当日不作外照射。结果:本组1、3、5年生存率分别为48.9%22/45、15.6%7/45、8.9%4/45,与我院单纯外照射治疗非小细胞肺癌的先期资料对比,两者1、3、5年生存率无明显差别。结论:1外照射结合高剂量率腔内照射治疗中晚期非小细胞肺癌不能明显改善远期生存率,但有利于肿瘤复发的再治疗。2适当的高剂量率腔内治疗不增加远期并发症。
Objective To observe the long term survival rates and complications of external beam radiotherapy plus high dose rate HDR brachytherapy for non-small cell lung cancer NSCLC. Methods From December 1990 to December 1993 forty-five patients with NSCLC were treated with external beam radiotherapy plus HDR brachytherapy 40 of them were squamous cell carcinoma other 5 cases were adenocarcinoma. The stage distribution of Ⅱa Ⅱb Ⅲa Ⅲb and Ⅳ was 1 9 26 7 and 2 respectively. The external beam irradiation field included the primary lesion ipsilateral hilar and mediastinal lymph node. Seventy-eight percent patients have received DT 60GY. The HDR microselectron treatment machine has been used for intracavitary brachytherapy. One to two catheters were inserted into lobar or segmental bronchus by using a bronchoscope the dose to the reference point at 10mm from the applicater axis was in 5-8GY fractions per week over one to three weeks to a total dose of 5~24GY. Results The 1-3-5-year survival rates were 48.9%22/4515.6%7/45 and 8.9%4/45 respectively. Comparing with the effects of the external beam irradiation alone that we have performed previously there was no significant difference. There were also no serious complication except one case occur atelectasis after treatment. Conclusion 1 External beam radiotherapy plus HDR intracavitary brachytherapy for NSCLC cannot imporve significnatly the long term survival but may help the retreatment of the recurrent tumor. 2 Suitable HDR intracavitary brachytherapy cannot increase later complication.
出处
《中国肿瘤临床》
CAS
CSCD
北大核心
2000年第10期741-743,共3页
Chinese Journal of Clinical Oncology
关键词
外照射
高剂量率腔内照射
非小细胞肺癌
疗效
External beam radiotherapy High dose intracavitary irradiation Non-small cell lung cancer Long term effect