窄QRS波心动过速时对心房超速起搏的反应。其机制是什么？
Response to atrial overdrive pacing during narrow QRS tachycardia. What is the mechanism?
作者信息
Majumdar Suchit, Mohanan Nair Krishna Kumar, Namboodiri Narayanan, Valaparambil Ajitkumar
机构信息
Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, 695011, India; Dept of Cardiology, Apollo Gleneagles Hospital, Calcutta, West Bengal, India.
Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, 695011, India.
出版信息
Indian Pacing Electrophysiol J. 2020 Sep-Oct;20(5):203-205. doi: 10.1016/j.ipej.2020.07.002. Epub 2020 Jul 28.
A 35-year old lady with no pre-excitation on surface electrocardiogram underwent EP study for recurrent palpitation and documented adenosine responsive narrow QRS tachycardia. Regular narrow QRS tachycardia was induced with critical AH delay on programmed atrial stimulation. An atrial overdrive pacing (AOD) was performed during the tachycardia (Fig: 1 & 2). What is the response to AOD and what is the mechanism of tachycardia?
一名35岁女性，体表心电图无预激表现，因反复心悸接受电生理检查，记录到腺苷反应性窄QRS波心动过速。程控心房刺激时诱发规则的窄QRS波心动过速，伴有严重的AH间期延长。在心动过速发作时进行了心房超速起搏（AOD）（图1和图2）。AOD的反应是什么，心动过速的机制是什么？
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