在心电图描记中,由呼吸肌肌电活动所致的肌电图(出现伪P波和细颤波)易被误为房性脱节或其他心律失常。作者曾观察34例此类图例,对有代表性的4例作了扼要的描述。指出,在鉴别诊断上,屏气试验有重要意义。国外报告此类肌电图的预后不良,与本文分析结果不符。 In electrocardiography, the EMG caused by respiratory muscle EMG activity (pseudo-P and VF) is easily mistaken for atrial dislocation or other arrhythmia. The authors have observed 34 such examples, a brief description of the representative 4 cases. Pointed out that in the differential diagnosis, breath test is of great significance. Foreign reports of such EMG poor prognosis, and the results of this analysis does not match.