肺静脉在犬迷走神经介导性心房颤动维持中作用的研究Role of pulmonary veins in sustained vagotonic atrial fibrillation in canines
王玉堂,国建萍,单兆亮,周俊彦,苑洪涛,王卫华,时向民
摘要(Abstract)：
目的研究单纯肺静脉隔离在阵发性迷走神经介导性心房颤动(迷走性房颤)中的作用。方法杂种犬10只,分别刺激颈部迷走神经干诱发出持续性房颤。在心外膜进行肺静脉隔离,分别比较消融前后左、右心房的有效不应期(AERP),房颤的诱发率、持续时间和房颤波周长(AFCL)的变化。结果肺静脉隔离后,左、右心房AERP较消融前明显延长,AFCL明显延长,左、右心房AERP的差异明显缩短,房颤仍持续直至停止迷走神经刺激。结论肺静脉在迷走性房颤的维持上不起决定性的作用。
关键词(KeyWords)： 心房颤动;肺静脉;迷走神经;犬
基金项目(Foundation):
作者(Author): 王玉堂,国建萍,单兆亮,周俊彦,苑洪涛,王卫华,时向民
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