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Ventricular repolarization evaluation from surface ECG for identification of the patients with increased myocardial electrical instability

机译:来自表面ECG的心室再偏振评估,以鉴定心肌电气不稳定增加的患者

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In order to reveal the possible correlation between the level of myocardial electrical instability assessed at Holter monitoring and certain ECG parameters characterizing ventricular repolarization 24-hours ECG recordings were analyzed in 91 patients with different grades of ventricular arrhythmias. The following parameters were calculated: RT-interval (RT) duration and variability, RT apex interval (RTa) duration and variability, areas of the first and second half of T-wave (S1, S2) and maximal rise and fall slopes of T-wave (k{sub}1, k{sub}2). An original signal processing algorithm for ECG was developed for that purpose. The results of the study suggest that complex analysis of certain T-wave parameters, as well as RT interval variability can be a useful tool for identification of patients at increased risk of sudden death.
机译:为了揭示在HOLTER监测中评估的心肌电不大水平之间的可能相关性,并在表征心室复极化的某些ECG参数24小时内进行ECG记录,分析了91例不同等级的室性心律失常。计算以下参数:RT-Interval(RT)持续时间和可变性,RT APEX间隔(RTA)持续时间和可变性,T波的第一和第二半部分的区域(S1,S2)和最大上升和掉落的斜坡-wave(k {sub} 1,k {sub} 2)。为此目的开发了一种用于ECG的原始信号处理算法。该研究的结果表明,对某些T波参数的复杂分析,以及RT间隔变异性可以是鉴定突然死亡风险增加的患者的有用工具。

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