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xin dian tu u bo dao zhi yu guan zhuang dong mai qian jiang zhi xia zhai
Author(s): 
Pages: 11
Year: Issue:  5
Journal: Progress in Japanese Medicine

Keyword:  冠状动脉造影心电图冠状动脉前降支左冠状动脉冠状动脉狭窄左心室肥大倒置活动平板试验特异性敏感性;
Abstract: <正> 关于U波倒置与左冠状动脉前降支的关系,Cerson对275例患者进行了研究,冠状动脉造影前,先作活动平板试验,除左心室肥大和安静时心电图有U波倒置者外,其余248例运动后U波倒置36例(15%)。冠状动脉造影35例存在显著的冠状动脉狭窄(狭窄>75%),其中33例狭窄部位在左冠状动脉主干部和前降支的近端。对于左冠状动脉主干和前降支近端显著狭窄的诊断,其敏感性30%,特异性98%,预测率92%。另外,作者对冠状动脉造影的849例安静时心电图进行探讨,胸前导联没有Q波的760例中,27例I、aVL、V4~6出现U波倒置,27例中,左冠状动脉主干和前降支近端显著狭窄者24例(89%),27例狭
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