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希氏束不应期左心室刺激鉴别窄QRS波心动过速1例 被引量:1

Differentiating a narrow QRS tachycardia using a left ventricular extrastimulus on His bundle refractory
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摘要 本文报道1例隐匿性左外侧游离壁旁路参与的顺向型房室折返性心动过速(O-AVRT),在心室起搏下消融过程中,冠状静脉窦A波激动顺序由冠状静脉窦远端最早突然变为近端最早,并可诱发以心房激动顺序存在的心动过速。于右心室反复行希氏束不应期心室刺激(RS2)均未提前下一A波,似乎不支持旁路参与,左心室RS2证实为经第2条左侧房室旁路逆传的O-AVRT;消融成功。
作者 于丰源 孙奇 Yu Fengyuan;Sun Qi(Center of Arrhythmia,Fuwai Hospital,State Key Laboratory of Cardiovascular Disease,National Center for Cardiovascular Diseases,Chinese Academy of Medical Sciences,Peking Union Medical College,Beijing 100037,China)
出处 《中华心律失常学杂志》 2022年第4期395-397,共3页 Chinese Journal of Cardiac Arrhythmias
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