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患者女,74岁。2月前劳动后有阵发性胸闷憋气,每次发作2～3小时。症状可自行消失。曾在某诊所诊断为冠心病。1991年4月6日因胸闷憋气3小时持续加重不能缓解入院。体检: P83次/min,BP17/10kPa,心界不大,律不齐,未闻及病理性杂音。即时ECG基本节律为房扑。房率为250次/min,标准导联的第一个QRS波
Female patient, 74 years old. Two months ago after labor paroxysmal chest tightness, suffocation, each episode 2 to 3 hours. Symptoms disappear on their own. In a clinic diagnosed as coronary heart disease. April 6, 1991 because of chest tightness, suffocation 3 hours continued to increase can not be relieved admission. Physical examination: P83 times / min, BP17 / 10kPa, heart is not big, irregular, no smell and pathological murmur. The basic rhythm of the ECG is atrial flutter. Room rate of 250 beats / min, the first standard QRS wave lead