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患者女,70岁。主诉反复发作性昏厥伴“早搏”20年,外院心电图曾证实有窦性静止。近一月来“早搏”明显,昏厥发作频繁,每日有2～3次,每次持续数秒。于1987年7月22日诊断为病态窦房综合征入院。体检:神清,肥胖,有老年角膜弓,心界无扩大,心率60次,似有“早搏”,未闻及病理性杂音,A_2>P_2,血压108/64,肺无啰音,腹部无特殊发现。胸片示两肺纹理增多,主动脉型心脏。7月22日心电图(附图上行,Ⅱ导联)示基本心律(第1、3、4、5、7个心搏)的P波低平,P-R间期0.12秒,心率
Female patient, 70 years old. Recurrent recurrent fainting with “premature beats” 20 years, outside the hospital ECG has been confirmed sinus static. Nearly a month to “premature beats” obviously, fainting episodes frequently, daily 2 or 3 times, each lasting several seconds. July 22, 1987 diagnosis of sick sinus syndrome admission. Physical examination: Shen Qing, obesity, elderly corneal bow, no expansion of the heart, heart rate 60 times, it seems that “premature beat”, no smell and pathological murmur, A_2> P_2, blood pressure 108/64, pulmonary arachnoid, absent Special discovery Chest radiograph showed increased lung texture, aortic heart. July 22 electrocardiogram (the upper line of the figure, Ⅱ lead) showed the basic rhythm (1,3,4,5,7 heart beating) P wave low flat, P-R interval of 0.12 seconds, heart rate