Ventricular tachycardia induced by pacing algorithm designed to avoid atrial fibrillation.

Autor:	Roque D; Serviço de Cardiologia, Hospital Professor Doutor Fernando da Fonseca, EPE, Amadora, Portugal. Electronic address: roque_866@hotmail.com., Cabanelas N; Serviço de Cardiologia, Hospital Professor Doutor Fernando da Fonseca, EPE, Amadora, Portugal., Augusto J; Serviço de Cardiologia, Hospital Professor Doutor Fernando da Fonseca, EPE, Amadora, Portugal., Madeira F; Serviço de Cardiologia, Hospital Professor Doutor Fernando da Fonseca, EPE, Amadora, Portugal., Vasconcelos H; Serviço de Cardiologia, Hospital Professor Doutor Fernando da Fonseca, EPE, Amadora, Portugal., Morais C; Serviço de Cardiologia, Hospital Professor Doutor Fernando da Fonseca, EPE, Amadora, Portugal.
Jazyk:	English; Portuguese
Zdroj:	Revista portuguesa de cardiologia [Rev Port Cardiol (Engl Ed)] 2020 Oct; Vol. 39 (10), pp. 611.e1-611.e3. Date of Electronic Publication: 2020 Sep 30.
DOI:	10.1016/j.repc.2020.08.005
Abstrakt:	A patient with a dual chamber pacemaker was admitted to the emergency room after out-of-hospital cardioversion for syncopal sustained monomorphic ventricular tachycardia. Device interrogation revealed an abnormally timed ventricular spike after a ventricular premature beat at the beginning of the event, caused by a pacemaker algorithm designed to avoid atrial fibrillation, non-competitive atrial pacing. Despite the absence of significant coronary lesions, in the setting of a vulnerable substrate - a hypokinetic and hyperechogenic region of ventricular myocardium - an upgrade to a dual-chamber implantable cardioverter-defibrillator was performed, and substrate ablation was planned. (Copyright © 2020 Sociedade Portuguesa de Cardiologia. Publicado por Elsevier España, S.L.U. All rights reserved.)
Databáze:	MEDLINE
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