Abstract

目的分析改良LMB 89 C组方案治疗高危儿童伯基特淋巴瘤的疗效。方法对2007年1月至2017年4月接受改良LMB 89 C组方案治疗的172例初治高危伯基特淋巴瘤患儿进行回顾性分析。结果全部172例患儿中位发病年龄6(1~14)岁,男144例(83.7%),女28例(16.3%),St.Jude分期Ⅱ、Ⅲ、Ⅳ期分别为2例(1.2%)、54例(31.4%)、116例(67.4%),46例(26.7%)为白血病期,52例(30.2%)存在中枢神经系统(CNS)侵犯。危险度分组:C1组(CNS1,无睾丸/卵巢侵犯)65例,C2组[CNS2和(或)睾丸/卵巢侵犯]55例,C3组(CNS3)52例。145例联合应用利妥昔单抗。10例未缓解并进展至死亡,5例复发,治疗相关死亡率为2.9%。中位随访时间36.0(0.5~119.0)个月,全组3年总生存(OS)率为(88.9±2.4)%、3年无事件生存(EFS)率为(87.9±2.6)%。C1、C2、C3组3年EFS率分别为(96.9±2.1)%、(90.9±3.9)%、(73.4±6.5)%,C3组低于C1组(χ2=12.939,P=0.001)和C2组(χ2=6.302,P=0.036)。C3组中利妥昔单抗联合化疗、单纯化疗患儿的3年EFS率分别为(79.3±6.8)%、(44.4±16.6)%(χ2=5.972,P=0.015)。多因素分析结果显示,临床分期Ⅳ期(包括白血病期)、中期评估有瘤灶为预后不良的危险因素[HR=4.241(95%CI 1.163~27.332),P=0.026;HR=32.184(95%CI 11.441~99.996),P<0.001]。结论改良LMB 89 C组方案对于高危儿童伯基特淋巴瘤具有较理想的疗效。

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