Abstract

目的评价重轻链(HLC)检测在多发性骨髓瘤(MM)疗效评价中的意义。方法纳入2013至2016年北京协和医院诊治的45例MM患者,连续收集其治疗过程中115份血清。采用常规M蛋白检查及HLC比值(rHLC)法同时评估疗效。结果①45例患者中男30例,女15例,平均年龄59(43~80)岁,其中IgG型27例(IgGκ 12例,IgGλ 15例),IgA型18例(IgAκ和IgAλ各9例)。②治疗前34例患者留取了血清标本,rHLC异常检出率为94.1%(32/34),2例rHLC正常的患者均为IgG型,部分缓解(PR)、非常好的部分缓解(VGPR)、完全缓解(CR)时rHLC异常检出率分别为81.8%(18/22)、50.0%(9/18)、16.0%(4/25),结果显示随着治疗后缓解程度的加深,rHLC异常率逐渐下降。③25例CR患者中IgG型13例,IgA型12例,其中有4例患者rHLC异常(IgG型和IgA型各2例)。④对同一患者进行HLC动态监测,发现rHLC恢复正常较M蛋白转阴(血清蛋白电泳、免疫固定电泳)及游离轻链恢复正常延迟。结论rHLC检测可以作为MM患者微小残留病的辅助评价手段。

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