右位心伴局灶性心房颤动
Focal atrial fibrillation in dextrocardia.
作者信息
Yamada Takumi, McElderry H Thomas, Doppalapudi Harish, Platonov Michael, Epstein Andrew E, Plumb Vance J, Kay G Neal
机构信息
Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL 35294-0019 ,USA.
出版信息
Ann Noninvasive Electrocardiol. 2009 Jul;14(3):301-4. doi: 10.1111/j.1542-474X.2009.00299.x.
A 49-year-old woman with dextrocardia and situs inversus underwent catheter ablation of paroxysmal atrial fibrillation (AF). During the electrophysiologic study, AF triggered by frequent premature atrial contractions (PACs) with a short coupling interval exhibiting a "P on T" pattern occurred. Pulmonary vein mapping revealed that those PACs originated from right-sided (anatomic left) or left-sided (anatomic right) pulmonary veins. In this case with mirror-image dextrocardia, the P-wave morphologies in leads I and aVL and the II/III ratio of the P-wave amplitude were helpful for predicting a right- or left-sided pulmonary vein origin.
一名患有右位心及内脏转位的49岁女性接受了阵发性心房颤动（AF）的导管消融术。在电生理研究期间，出现了由频发房性早搏（PAC）触发的AF，其联律间期短，呈现“P波落于T波上”模式。肺静脉标测显示，这些PAC起源于右侧（解剖学上的左侧）或左侧（解剖学上的右侧）肺静脉。在这个镜像右位心病例中，Ⅰ导联和aVL导联的P波形态以及P波振幅的Ⅱ/Ⅲ比值有助于预测肺静脉起源于右侧还是左侧。
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