Hayashi H, Ishikawa T, Uematsu H
Jpn Circ J. 1981 Oct;45(10):1182-6. doi: 10.1253/jcj.45.1182.
To determine the more exact site of origin of ventricular premature beats (VPBs), body surface maps were recorded in 28 patients, aged 15 to 71 years (mean 52) with no cardiac disorders. The site of origin of VPBs was determined from 1) sequential isopotential maps, 2) ventricular activation time (VAT) map and 3) on the basis of maps during pacemaker stimulation at different ventricular areas. To get a three dimensional idea regarding the progression of the ventricular activation front, zero plane was constructed in the human torso by supposing the plane which includes zero potential line on body surface at each instance of ventricular activation. Unipolar lead electrocardiograms were recorded from 85 lead points over the body surface to obtain maps. The site of origin was determined to be from right ventricle in 15 patients, from top of interventricular septum in 10 patients, and from left ventricle in 3 patients. Of 15 patients with right ventricular premature beats, 3 were from outflow region, 4 were from posterobasal region, 6 were from inflow region and 2 were from apical region. Of 3 patients with left ventricular premature beats, 2 were from posterobasal region and 1 was from high lateral region.
为确定室性早搏（VPB）更确切的起源部位，对28例年龄在15至71岁（平均52岁）且无心脏疾病的患者进行了体表标测。室性早搏的起源部位通过以下方法确定：1）连续等电位图；2）心室激动时间（VAT）图；3）基于不同心室区域起搏器刺激时的标测图。为获得关于心室激动前沿进展的三维概念，通过假设在心室每次激动时包含体表零电位线的平面，在人体躯干中构建零平面。从体表85个导联点记录单极导联心电图以获取标测图。确定起源部位为右心室的有15例患者，室间隔顶部的有10例患者，左心室的有3例患者。在15例右心室早搏患者中，3例起源于流出区域，4例起源于后基底区域，6例起源于流入区域，2例起源于心尖区域。在3例左心室早搏患者中，2例起源于后基底区域，1例起源于高位外侧区域。
