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目的探讨三维适形放疗用于食管癌纵隔淋巴结转移治疗的意义和效果。方法采用三维适形放疗治疗25例食管癌术后纵隔淋巴结转移患者,所有患者均采用三维适形放疗,放疗用钴60γ射线照射,能量为1.2mv,常规分割1.8～2Gy/次,5次/周,总剂量50～64Gy。结果放疗后1个月行CT检查,CR14例,PR7例,SD3例,PD1例,有效21例,有效率84.0%。6个月、1年生存率分别为100.0%(25/25)和84.0%(22/25)。结论三维适形放射治疗用于食管癌纵隔淋巴结转移灶的治疗,能提高局部控制率,从而提高生存率,疗效满意。
Objective To investigate the significance and effect of three-dimensional conformal radiotherapy for mediastinal lymph node metastasis in esophageal cancer. Methods Three-dimensional conformal radiotherapy was used to treat postoperative mediastinal lymph node metastases in 25 patients with esophageal cancer. All patients were treated with three-dimensional conformal radiotherapy. Radiotherapy was performed with Cobalt 60γ ray with an energy of 1.2 mV, conventional segmentation of 1.8-2 Gy / Week, the total dose of 50 ~ 64Gy. Results One month after radiotherapy, CT was performed. There were 14 cases of CR, 7 cases of PR, 3 cases of SD, and 1 case of PD, 21 cases were effective, and the effective rate was 84.0%. The 6-month and 1-year survival rates were 100.0% (25/25) and 84.0% (22/25), respectively. Conclusion Three-dimensional conformal radiotherapy for the treatment of mediastinal lymph node metastases in esophageal cancer can improve the local control rate, thereby improving the survival rate, the curative effect is satisfactory.