A novel metric called Layered Symbolic Decomposition frequency (LSDf) has been shown to be an independent predictor of ventricular arrhythmia and mortality in patients receiving implantable cardioverter-defibrillator (ICD) devices. This novel index studies the fragmentation of the QRS complex. However, its generalizability to predict cardiovascular events for other cardiac procedures is unknown. Herein, we investigated the applicability of LSDf as a predictive measure for major adverse cardiovascular events (MACE) in patients receiving coronary artery bypass grafting (CABG).

中文翻译：

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使用 QRS 波群的新型心电图频率分析预测冠状动脉旁路移植术后患者的不良心血管结局

一种称为分层符号分解频率 (LSDf) 的新指标已被证明是接受植入式心律转复除颤器 (ICD) 设备的患者的室性心律失常和死亡率的独立预测因子。这个新颖的指数研究 QRS 波群的碎裂。然而，其预测其他心脏手术心血管事件的普遍性尚不清楚。在此，我们研究了 LSDf 在接受冠状动脉旁路移植术 (CABG) 的患者中作为主要不良心血管事件 (MACE) 预测指标的适用性。