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房室交界处逸搏心律伴完全性反复搏动二联律一例

China Medicine(2013)

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Abstract
患者男,74岁.因"头晕、胸闷1周,加重1d"就诊.高血压病史20余年,冠心病史10余年,无糖尿病史.体格检查:T36.8℃,BP 165/95 mm Hg(1 mm Hg =0.133 kPa).心律不齐,心率55次/min,无病理性杂音.心电图示(图1):Ⅱ导联非窦性心律,长R-R间期的频率为54次/min,长R-R间期之后均见倒置P’波,R-P’为220 ms,可见跟随室上性QRST波,P’-R为240 ms,R-R’为460 ms,V3~V5导联ST段呈水平型压低,为0.05 ~0.10 mV,Q-T间期320 ms.心电图诊断:①窦性停搏或Ⅲ.窦房传导阻滞;②房室交界处逸搏心律;③完全性房室交界处反复搏动二联律;④ST段改变;⑤Q-T间期缩短.2h后在未做任何处理的情况下自动转换为平均心室率为110次/min的快心室率心房颤动.
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