食管癌放疗后复发再程调强放疗的临床观察

摘要

目的：探讨调强放疗（intensity modulater radiation therapy，IMRT）在食管癌首程放疗后局部复发患者中的应用及临床观察。方法：37例首程放疗后局部复发的食管鳞癌患者，采用调强放疗技术进行二程放疗，处方剂量为（50-60）Gy/[2Gy·（25-30）f]。结果：37例患者中完全缓解（complete response，CR）7例，部分缓解（partial response，PR）20例，有效率（response rate，RR）为73．0％（27/37）。本组患者1、2、3年生存率分别为59．5％、32．4％、21．1％。放射性食管炎、骨髓抑制、胃肠道反应的发生率较高。全部病例随访资料完整。截止2012年12月，25例患者已经死亡，其中死于局部复发11例、远处转移8例、食管气管瘘2例、大出血2例、其他疾病1例、自杀1例。结论：调强放疗对于食管癌首程放疗后局部复发患者是一种较好的有效的治疗方法，能取得较好的局部控制率。%Objective:To evaluate the applications and clinical effect of intensity modulated radiation therapy (IMRT)for loco-regionally recurrent esophageal cancer after initial radiotherapy.Methods:All 37 patients with loco-regionally recurrent esophageal cancer after initial radiotherapy were treated with IMRT,with a total dose of (50-60)Gy/[2Gy·(25 -30)f].Results:Of 37 patients,7 patients achieved completed remission,20 patients achieved partial remission,the effective rate was 73.0%(27/37).The overall 1 -,2 -,3 -year survival rates were 59.5%, 32.4%,21.1%.In the radiation therapy,the incidence rates of radiation esophagitis and arrest of bone marrow were high.In followed up,until December 2012,25 patients died,1 1 from local recurrence,8 from distant metastases,2 from esophageal leak,2 from haemorrhage,1 from other disease,1 from suicide.Conclusion:To patients with loco-regionally recurrent esophageal cancer after initial radiotherapy,IMRT is an alternative effective method,can improve the local control rate.