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242名15—18岁男学生,发育正常,体格良好,均经详细查体,反复询问病史。血压、脉搏、下蹲运动试验正常,胸部透视及实验室检查阴性。所用器械为热笔式心电图机。描记时1毫伏=10小格,纸速为25小格/秒。描联导联为Ⅰ、Ⅱ、Ⅲ、aVR、aVL、aVF、V_1、V_3、V_5,部份受检者附加 V_3R、V_4R。按黄宛编的《临床心电图学》第三版判断标准方法进行心电图测量。现将几个主要问题整理分述于后。一、“不完全性右束支传导阻滞”型心电图“不完全性右束传导阻滞”型心电
242 male students aged 15-18, normal development, good physical condition, have been detailed examination, repeated medical history. Blood pressure, pulse, squat exercise test is normal, chest X-ray and laboratory tests negative. The instrument used is a hot pen-type electrocardiograph. Tracing 1 millivolt = 10 cells, paper speed of 25 cells / second. Tracing leads for the Ⅰ, Ⅱ, Ⅲ, aVR, aVL, aVF, V_1, V_3, V_5, some subjects attached V_3R, V_4R. According to Huang Wan compiled “clinical electrocardiography” third edition to determine the standard method for ECG measurements. Now several major problems are sorted out in the post. First, the “incomplete right bundle branch block” type ECG “incomplete right bundle block” type ECG