目的：观察不同推量方式对根治性放疗后局灶残存局部晚期鼻咽癌患者远期疗效及放疗反应的影响。方法：回顾分析2009年2月至2011年5月期间我院局部晚期鼻咽癌根治性放疗后局部残存患者接受伽玛刀推量治疗（49例）及三维适形放疗（3D-CRT）推量治疗（53例），比较两组患者远期疗效及放疗反应。结果：伽玛刀推量组患者1，3，5年无复发生存率分别是97．8％，90．0％，80．8％，3D-CRT 推量组患者1，3，5年无复发生存率分别是94．3％，76．1％，72．9％，差异具有显著性（P ＜0．05），两组患者1，3，5年的总生存率及1，3，5年无转移生存率比较，差异无统计学意义（P ＞0．05）。两组患者远期放射性反应比较差异无统计学意义（P ＞0．05）。结论：根治性放疗后病灶残存的局部晚期鼻咽癌患者伽玛刀推量放疗在远期局控率方面优于3D-CRT推量，两者远期放疗反应无明显差异。%Objective To investigate the long-term effect and radiation side reaction of different boost methods in patients with local remnants of locally advanced nasopharyngeal carcinoma after curative radiotherapy Methods Based on the retrospective analysis , 102 patients with local remnants of locally advanced nasopharyngeal carcinoma, after curative radiotherapy, were enrolled from February 2009 to May 2011. Forty-nine patients received gamma knife boost and 53 patients received 3-dimensional conformal radiotherapy (3D-CRT). The long-term effect and radiation side reaction were compared between the two groups. Results The 1-year, 3-year, and 5-year relapse-free survival rate (RFS) in the gamma knife boost group and the 3D-CRT group was 97.8%, 90.0%, 80.8%, and 94.3%,76.1%,72.9%, respectively (P < 0.05). No significant differences of the overall survival and metastasis-free survival rate wer found in two groups , as well as the long-term radioactive reaction. Conclusion The gamma knife boost is better than 3D-CRT with respect to local control rate , but the long-term radiation side reactions were similar between the methods.
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