基于单中心真实世界数据探讨中国多发性骨髓瘤相关静脉血栓栓塞症的预防现状及相关风险评分系统的预测价值

Exploring the prevention status of venous thromboembolism in Chinese multiple myeloma based on single-center real-world data and the predictive value of related risk stratification systems

目的:通过统计真实世界中多发性骨髓瘤(multiple myeloma,MM)患者静脉血栓栓塞症(venous thromboembolism,VTE)的预防措施和发生情况,探讨目前中国MM相关VTE预防存在的问题,并初步检验《多发性骨髓瘤相关静脉血栓栓塞症防治中国专家共识(2022年版)》提出的VTE风险评分系统(简称为中国共识风险评分系统)对中国新诊断多发性骨髓瘤患者(newly diagnosed multiple myeloma,NDMM)发生VTE的预测效能。方法:收集并分析2018年1月—2023年8月在医院诊断的NDMM患者的临床资料,包括患者基本特征、VTE预防用药以及是否出现VTE,根据中国共识风险评分系统对患者进行风险评估,并统计VTE事件发生率,根据受试者工作特征曲线的曲线下面积与IMPEDE模型的预测效能进行对比。结果:共428例NDMM患者,VTE发生率为9.58%,低危组、高危组和极高危组的VTE发生率分别为3.35%、26.60%和40.00%,低危组与高危组和极高危组之间的VTE发生率差异有统计学意义(P<0.05);低危组中170例患者给予了血栓预防,164例使用阿司匹林,6例使用抗凝剂,高危组中60例患者给予了血栓预防,其中57例使用阿司匹林,3例使用抗凝剂,低危组与高危组患者使用阿司匹林比例分别为68.62%和60.64%。中国共识风险评分系统和IMPEDE模型预测NDMM患者VTE的受试者工作特征曲线(ROC)下面积(AUC)分别为0.760(0.670~0.850)和0.685(0.591~0.780),敏感度分别为70.70%和73.20%,特异度分别为80.60%和59.40%。结论:中国共识风险评分系统可以明显区分低危、高危及极高危患者,且预测效能优于IMPEDE模型,中国血液科医师对于MM相关VTE的分层预防的认识有待进一步提高,合理地预防用药需要更多的临床数据进行探索。

Objective To investigate the prevention measures and occurrence of venous thromboembolism(VTE)in patients with multiple myeloma(MM)based on real-world data.It examines the existing issues in VTE prevention in Chinese MM patients and preliminarily tests the predictive efficacy of the VTE risk score system proposed in the Consensus on the Prevention and Treatment of Venous Thromboembolism in Multiple Myeloma in China(2022 Edition),referred to as the Chinese Consensus Risk Score System,for the occurrence of VTE in newly diagnosed multiple myeloma(NDMM)patients in China.Methods Clinical data of NDMM patients diagnosed at our hospital between January 2018 and August 2023 was collected and analyzed,including patients'baseline characteristics,VTE prophylactic medications,and the occurrence of VTE.Patients were assessed for risk using the Chinese Consensus Risk Score System,and the incidence of VTE will be calculated.The predictive effectiveness of the system was compared with the IMPEDE model using the area under the receiver operating characteristic curve.Results Among 428 NDMM patients,the incidence of VTE was 9.58%.The VTE incidence in the low-risk,high-risk,and very high-risk groups was 3.35%,26.60%,and 40.00%,respectively.There was a statistically significant difference in VTE incidence between the low-risk group and the high-risk/very high-risk group(P<0.05).In the low-risk group,170 patients received thromboprophylaxis,with 164 using aspirin and 6 using anticoagulants.In the high-risk group,60 patients received thromboprophylaxis,with 57 using aspirin and 3 using anticoagulants.The proportion of patients using aspirin was 68.62%and 60.64%in the low-risk and high-risk groups,respectively.The Chinese Consensus Risk Score System and the IMPEDE model had receiver operating characteristic(ROC)curve areas under the curve(AUC)of 0.760(0.670-0.850)and 0.685(0.591-0.780),respectively.The sensitivity was 70.70%and 73.20%,and the specificity was 80.60%and 59.40%,respectively.Conclusion The Chinese Consensus Risk Score System can effectively differentiate low-risk,high-risk,and very high-risk patients,and it has better predictive efficacy than the IMPEDE model.The understanding of stratified prevention of MM-related VTE among Chinese hematologists needs further improvement,and rational prevention medication requires more exploration with clinical data.