心电图电轴左偏一般认为是有病理意义的,常见于高血压病、缺血性心脏病或其他心脏病变中。左室面的R波增高一直被视为诊断左室肥大的指标之一,如同时有ST段压低及T波倒置则是冠心病的一项重要危险因素,然其病理生理机制尚未阐明。显著电轴左偏和R波增高的持续时间和临床意义尚未明确。本文随机抽样在相 ECG left axis is generally considered to be pathological significance, common in hypertension, ischemic heart disease or other heart disease. Left ventricular R wave increased has been considered as an indicator of diagnosis of left ventricular hypertrophy, such as both ST-segment depression and T wave inversion is an important risk factor for coronary heart disease, and its pathophysiological mechanisms have not yet been elucidated. Significant axis left shift and R wave increased duration and clinical significance has not yet been clear. This paper randomly sampled in the phase