1　临床资料　　患者男性。1999年8月6日以胸闷伴心悸3天加重1小时来诊。查体:血压90/60mmHg(1mmHg=0.133kPa),脉搏短绌,心界略向左下扩大,心律绝对不整,心音强弱不等,心率130～170次/分,未闻及心脏杂音,双肺散在干鸣,双肺底少量细湿音,肝、脾肋下未触及,双下肢无水肿;心电图 1 clinical data of patients male. August 6, 1999 to chest tightness palpitations with aggravating 3 hours 1 day consultation. Physical examination: blood pressure 90 / 60mmHg (1mmHg = 0.133kPa), shortness of breath, the heart slightly to the left to expand the heart rhythm is not the whole, heart sound intensity ranging from 130 to 170 beats / min, no heart murmur, double Lung scattered in the dry Ming, a small amount of wet lungs at the end of lung  sound, liver, spleen rib did not touch, both lower extremities without edema; ECG