Eur Heart J:心律失常致心肌病患者室性心律失常新的预测模型

2022-04-22 MedSci原创 MedSci原创

使用最大型的既往没有VA的ARVC患者队列,研究人员利用现成的临床参数设计了一个预测模型来估计VA风险,并可指导一级预防ICD的决策。

心律失常性右心室发育不良/心肌病(ARVC)是以室性心律失常(VAs)和心源性猝死(SCD)为主要特征。近日,心血管领域权威杂志Eur Heart J上发表了一篇研究文章,研究人员的目标是建立一个ARVC患者发生VA/SCD的个体化预测模型。

该研究纳入了528名确诊患者,基线时无持续性VAs/SCD病史,他们的平均年龄为38.2±15.5岁,44.7%为男性,来自北美和欧洲的5个登记中心。

在超过4.83年(四分位差为2.44-9.33)的随访中,146例(27.7%)患者发生持续性VA,定义为SCD、终止SCD、持续性室性心动过速或适当的植入式心脏转复除颤器(ICD)治疗。研究人员利用内部验证的Cox回归建立了估算年度VA风险的预测模型。预先指定了8个潜在的预测因子:年龄、性别、前6个月的心源性晕厥、非持续性室性心动过速、24小时内室性早搏复合体的数量、t波倒置导联的数量以及左、右心室射血分数(LVEF)。除LVEF外,其余均保留在最终模型中。该模型准确地区分了有事件和没有事件的患者,校正的c指数为0.77[95%置信区间(CI)为0.73-0.81]。通过决策曲线分析,该模型的临床效益优于当前基于共识的ICD植入算法,在保护患者比例相同的情况下,ICD植入减少了20.3% (P<0.001)。

由此可见,使用最大型的既往没有VA的ARVC患者队列,研究人员利用现成的临床参数设计了一个预测模型来估计VA风险,并可指导一级预防ICD的决策。

原始出处:

Julia Cadrin-Tourigny,et al.A new prediction model for ventricular arrhythmias in arrhythmogenic right ventricular cardiomyopathy.European Heart Journal.2022.https://academic.oup.com/eurheartj/advance-article/doi/10.1093/eurheartj/ehac180/6569858

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    2022-04-23 zhaojie88
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    2022-04-23 slcumt
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