Matsuo K, Aihara N, Shimomura K, Tokuda T
Cardiology Division of Medicine, Teikyo University.
Nihon Rinsho. 1995 Feb;53(2):367-71.
To clarify the etiology of the prepotentials (PPs) between the end of P wave and the onset of QRS complex (P'-R segment) in signal averaged electrocardiogram (SAECG), SAECG was recorded in 26 healthy volunteers and 15 patients with idiopathic left ventricular tachycardia (VT) and electrophysiologic study (EPS) was done in those 15 VT patients. The PPs which had three components (PP1, PP2, PP3) were recorded in 14 of the 26 volunteers (53.8%) and 10 of the 15 VT patients (66.7%). The intervals from the PPs to the onset of QRS complex were 45.4 +/- 6.6, 30.6 +/- 5.6, 16.0 +/- 4.7 ms, respectively. These intervals in SAECG were very similar to the intervals from the electrograms of His bundle, right bundle, Purkinje network to the onset of QRS complex in EPS. The PPs in SAECG were thought to represent the electrical activity of His bundle, right bundle and Purkinje network.
为明确信号平均心电图（SAECG）中P波终末与QRS波群起始（P'-R段）之间预激电位（PPs）的病因，对26名健康志愿者和15名特发性左室心动过速（VT）患者进行了SAECG记录，并对这15名VT患者进行了电生理研究（EPS）。26名志愿者中有14名（53.8%）和15名VT患者中有10名（66.7%）记录到具有三个成分（PP1、PP2、PP3）的PPs。PPs至QRS波群起始的间期分别为45.4±6.6、30.6±5.6、16.0±4.7毫秒。SAECG中的这些间期与EPS中希氏束、右束支、浦肯野网络电图至QRS波群起始的间期非常相似。SAECG中的PPs被认为代表希氏束、右束支和浦肯野网络的电活动。
