Lancet haemat:如何评估肥大细胞增多症患者的预后?

2019-11-01 一刀 MedSci原创

肥大细胞增多症是一种病因不明的症状,其特征为机体各器官和组织内有大量肥大细胞聚集。全身性肥大细胞增多症患者多表现为关节痛、骨痛和过敏样症状,还有刺激H2组胺受体所致的症状(胃酸和黏液分泌增加)。虽然WHO将肥大细胞增多症详细划分了不同的变异型,但其临床预后仍不乐观。本研究目的是探索肥大细胞增多症预后的影响因素,建立可评估预后的模型。研究人员分析了1987年1月-2017年3月根据WHO标准诊断为肥

肥大细胞增多症是一种病因不明的症状,其特征为机体各器官和组织内有大量肥大细胞聚集。全身性肥大细胞增多症患者多表现为关节痛、骨痛和过敏样症状,还有刺激H2组胺受体所致的症状(酸和黏液分泌增加)。虽然WHO将肥大细胞增多症详细划分了不同的变异型,但其临床预后仍不乐观。本研究目的是探索肥大细胞增多症预后的影响因素,建立可评估预后的模型。

研究人员分析了1987年1月-2017年3月根据WHO标准诊断为肥大细胞增多症的1639位患者(年龄17-90岁)的数据。采用Cox回归模型进行单因素和多因素分析,以确定影响预后的因素,并建立预后评分。并在另一个系统统计的462位肥大细胞增多症患者的数据中进行验证。

本研究证实了WHO分类的预后价值(p<0.0001)。对于非晚期肥大细胞增多症患者(1380位),年龄(≥60岁)和碱性磷酸酶水平(≥100 U/L)是总体存活率的额外独立预测因素(风险比[HR]分别是10.75和2.91).结果评分系统将非晚期肥大细胞增多症患者划分成了三组:低风险(无风险因素)、中风险1(1个风险因素)和中风险2(2个风险因素)。上述三组的总体存活率和无进展生存期均明显不同(p<0.0001)。

对于晚期肥大细胞增多症患者(259位),年龄(≥60岁)、类胰蛋白酶浓度(≥125 ng/mL)、白细胞计数(≥16x100/L)、血红蛋白(≤11 g/dL)、血小板计数(≤100x109/L)和皮肤浸润全是其预后变量。基于上述变量,研究人员针对晚期肥大细胞增多症建立了一个单独的评分,分为四个风险级别,各级别间的总体生存期和无进展生存期的结果存在显著差异(p<0.0001)。这两项评分的预后价值在验证队列的413位非晚期肥大细胞增多症患者和49位晚期肥大细胞增多症患者中得到了证实。

本研究所开发的评分系统(IPSM),用于非晚期和晚期肥大细胞增多症患者可预测其存活预后、指导治疗决策的制定。但IPSM的预测价值需进一步在临床试验中验证。

原始出处:

Wolfgang R Sperr, et al.International prognostic scoring system for mastocytosis (IPSM): a retrospective cohort study.The Lancet Haematology. October 29, 2019. https://doi.org/10.1016/S2352-3026(19)30166-8

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    2020-10-16 changfy
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    2020-03-28 howi
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    2019-11-03 fengyi812
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