动态调强放疗同步化疗联合辅助化疗治疗Ⅲ期非小细胞肺癌

目的探讨动态调强适形放射治疗（IMRT）同步TP方案（泰素＋卡铂）化疗联合NP方案（诺维本＋顺铂）辅助化疗治疗Ⅲ期非小细胞肺癌（NSCLC）的可行性，近期疗效和不良反应。方法对2005—06／2007—03收治的经病理学（纤维支气管镜活检）或细胞学（痰脱落细胞学或肺穿刺细胞学）证实的63例Ⅲ期NSCLC患者（除外有锁骨上淋巴结转移者），采用动态调强适形放射治疗（IMRT）同步TP方案（泰素＋卡铂）化疗联合NP方案（诺维本＋顺铂）治疗。结果按WHO通用的实体瘤疗效评价标准评价，完全缓解21例，部分缓解28例，无变化7例，进展7例，总有效率77．8％。Ⅲa／Ⅲb分组近期疗效经Mann—Whitney U检验两组有统计学差异（P=0．019）。根据RTOG标准，急性放射性肺炎、食道炎Ⅰ—Ⅱ级反应分别为65％和82％，Ⅲ级反应分别为35％和18％。按照WHO标准，化疗不良反应均在Ⅱ—Ⅲ级内。动态设计IMRT计划在提高肿瘤剂量的同时减少了治疗侧肺容积剂量，有效降低了放射性肺损伤。结论动态调强适形放疗同步，ITP方案化疗联合NP方案辅助化疗治疗Ⅲ期NSCLC方法可行，动态设计IMRT计划有助于减少治疗侧肺容积剂量，提高了TCP，降低了NTCP，不良反应患者可以耐受。

Concomitant Dynamic IMRT and Chemotherapy Combined With Accessory Chemotherapy for Ⅲ Stage NSCLC

Objective To evaluate the efficacy and toxicicy of concomitant IMRT and chemotherapy combined with accessory chemotherapy for Ⅲ stage non-small cell lung cancer （NSCLC）. Methods 63 cases with Ⅲ stage NSCLC diagnosed by pathology from Jun. 2005 -Mar. 2007 were treated. Results A total of 63 patients were enrolled, among whom 21 cases were complete remission, 28 cases partial remission, 7 no change, and 7 made progress, with overall effective rate of 77.8%. The response rate was different between Ⅲa and Ⅲb（P =0. 019）. IMRT promoted doses in tumor and reduced side effects. Conclusion Concomitant IMRT and chemotherapy combined with accessory chemotherapy for Ⅲ stage NSCLC can improve the local control rate and the initial response rate with tolerable toxity.