Journal Article

Electrical storm of monomorphic ventricular tachycardia after a cardiac-resynchronization-therapy-defibrillator upgrade

Bharat K. Kantharia, Jigar A. Patel, Bipinpreet S. Nagra and Gary S. Ledley

in EP Europace

Published on behalf of European Heart Rhythm Association of the European Society of Cardiology (ESC)

Volume 8, issue 8, pages 625-628
Published in print August 2006 | ISSN: 1099-5129
Published online June 2006 | e-ISSN: 1532-2092 | DOI: http://dx.doi.org/10.1093/europace/eul049
Electrical storm of monomorphic ventricular tachycardia after a cardiac-resynchronization-therapy-defibrillator upgrade

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In patients with significant left ventricular dysfunction and congestive heart failure despite optimal medical therapy, implantation of cardiac resynchronization therapy-defibrillation (CRT-D) devices has been shown to improve symptoms and mortality. In this report, we describe a case of a patient with ischaemic cardiomyopathy who developed incessant ventricular tachycardia (VT) after undergoing an upgrade from an implantable cardioverter defibrillator to a CRT-D device. The patient required multiple anti-arrhythmic agents, removal of the coronary sinus lead, and radiofrequency ablation to control VT. Thus, in rare patients, the CRT devices may potentially cause ‘proarrhythmia’ with serious consequences.

Keywords: Cardiac resynchronization therapy; Ventricular tachycardia; Cardiomyopathy; Congestive heart failure; Anti-arrhythmic agents; Radiofrequency ablation; Proarrhythmia

Journal Article.  1542 words.  Illustrated.

Subjects: Cardiovascular Medicine

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