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蒲肯野纤维在室性心律失常发生和维持中的作用及机制 被引量:3

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摘要 心脏蒲肯野纤维(purkinje fiber,PF)由于有着独特的解剖位置、细胞结构和电生理特征,在电冲动向心室肌的传播过程中起着重要的作用。近来的研究证实,PF在诸多疾病类型的室性心动过速(室速)和心室颤动(室颤)中起触发和(或)维持作用,因而PF成为近来人们关注的热点。由于PF易于发生早后除极(EAD)、晚后除极(DAD)和异常的自律性,所以许多心脏病的室性心律失常起源于PF系统。通过折返机制和局灶机制(异常自律性、触发活动或微折返),PF参与了室颤的维持。针对异常PF电位的消融已越来越多地被应用于室速/室颤的治疗。本文拟对PF在室性心律失常发生和维持中的作用及机制进行讨论。
作者 李威 李毅刚
出处 《中华心血管病杂志》 CAS CSCD 北大核心 2011年第11期1068-1071,共4页 Chinese Journal of Cardiology
基金 国家自然科学基金(81070154)
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参考文献32

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同被引文献63

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