甘氨双唑钠对局部晚期喉癌放疗增敏作用的远期效果

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目的:观察甘氨双唑钠对接受化疗的局部晚期喉癌放疗增敏作用的远期效果。方法选择局部晚期喉癌60例,分为甘氨双唑钠加放疗组(观察组)30例和单纯放疗组(对照组)30例。观察组采用甘氨双唑钠700 mg/m2溶于0.9%氯化钠注射液100 ml 中,20 min 内滴完,每周3次,共21次,药物滴完后30 min 内进行常规放疗;对照组采用安慰剂加0.9%氯化钠注射液,方法同观察组。观察终点为无进展生存期、总生存期和远期毒性及不良反应。结果观察组与对照组分别有27例、24例完成治疗,观察组和对照组中位无进展生存期分别为1.9、1.6年,差异有统计学意义(P =0.026);观察组和对照组中位总生存期分别为2.7、2.2年,差异无统计学意义(P =0.727)。两组均未出现远期严重毒性及不良反应。多因素分析提示 N 分期及肿瘤位置是无进展生存的预后影响因素,风险比(HR)分别为1.86、3.33;T 分期和 N 分期是总生存期的预后影响因素,HR 分别为3.08、1.95。结论甘氨双唑钠对局部晚期喉癌有明显的放疗增敏作用,可以延长患者的无进展生存期,且患者耐受性良好。
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