临床上常见快速性房性心律失常,而缓慢心房律则较少见或很少引起注意。我院从1984年以来的住院患者中检出52例,报告如下:取材标准:1、在多次心电图记录中,出现与同一导联的窦性 P 波形态不同的 P′波,频率50～80次/分,P′—R 问期在正常范围内或稍长于0.20秒。2.PⅡ、Ⅲ、aVF 倒置,PaVR 直立, Common clinical rapid atrial arrhythmias, and slow atrial rhythm is less or rarely pay attention. Our hospital from 1984 inpatients since the 52 cases were detected, the report is as follows: Material standards: 1, in multiple ECG records, with the same lead sinus P wave morphology of different P ’wave frequency of 50 ~ 80 beats / min, P’-R Q period in the normal range or slightly longer than 0.20 seconds. 2.PⅡ, Ⅲ, aVF inversion, PaVR upright,