Alternating and gradually changing narrow QRS complex tachycardia in a patient with heart failure: What is the mechanism?

Alternating and gradually changing narrow QRS complex tachycardia in a patient with heart failure: What is the mechanism?

Abstract A 23‐year‐old woman with palpitations for 9 years was referred for catheter ablation. ECG showed an irregular narrow complex tachycardia with alternating and gradually changing QRS morphologies after alternating and changing RR intervals, with a clear pattern of 2 alternating QRS complexes....

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Bibliographic Details
Main Authors: Songwen Chen, Feilong Zhang, Yong Wei, Xiaofeng Lu, Genqing Zhou, Shaowen Liu
Format: Article
Language:English
Published: Wiley 2021-11-01
Series:Annals of Noninvasive Electrocardiology
Subjects:
alternating QRS
ventricular tachycardia
Online Access:https://doi.org/10.1111/anec.12836

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