Why the study?
Can upgrading to a CRT-D device cause proarrhythmia (incessant ventricular tachycardia) in patients with ischaemic cardiomyopathy?
Case Report (n=1)
Can upgrading to a CRT-D device cause proarrhythmia (incessant ventricular tachycardia) in patients with ischaemic cardiomyopathy?
CRT devices may potentially cause proarrhythmia with serious consequences in rare patients.
Answers are grounded in this paper and cite their sources.
Rare CRT-D upgrade proarrhythmia warrants vigilance in ischaemic cardiomyopathy; leaves open incidence and predictors.
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.
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Kantharia et al. (2006) conducted a case report in Ischaemic cardiomyopathy (n=1). CRT-D device upgrade was evaluated on Development of incessant ventricular tachycardia (proarrhythmia).
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