Komsuoğlu B, Ulusoy S, Duman E L
Department of Cardiology, Karadeniz Technical University, Trabzon, Turkey.
Jpn Heart J. 1989 Jan;30(1):47-53. doi: 10.1536/ihj.30.47.
When left bundle branch block (LBBB) is present on the electrocardiogram, the diagnosis of left ventricular hypertrophy (LVH) may be difficult. The left ventricular mass in 70 patients with LBBB was estimated by echocardiography, and was compared to the QRS configuration on the electrocardiogram. We found that there was agreement between a monophasic R pattern in lead 1 or V6 (sensitivity 79.3%, 70.7%) and left ventricular hypertrophy. We suggest that a monophasic R pattern in L1 and V6 may provide a useful simple index of left ventricular hypertrophy in the presence of left bundle branch block.
当心电图出现左束支传导阻滞（LBBB）时，左心室肥厚（LVH）的诊断可能会很困难。通过超声心动图对70例左束支传导阻滞患者的左心室质量进行了评估，并与心电图上的QRS形态进行了比较。我们发现，Ⅰ导联或V6导联出现单相R波形态与左心室肥厚之间存在一致性（敏感性分别为79.3%、70.7%）。我们认为，在存在左束支传导阻滞的情况下，Ⅰ导联和V6导联出现的单相R波形态可能为左心室肥厚提供一个有用的简单指标。
