Recurrent Cardiac Arrest With Negative Stress Test: An Unusual Presentation of Catecholaminergic Polymorphic Ventricular Tachycardia

Ama K Annor; Stephen A May; Alexis M Fenton; Wilson W Lam

doi:10.1016/j.jaccas.2020.05.075

Recurrent Cardiac Arrest With Negative Stress Test: An Unusual Presentation of Catecholaminergic Polymorphic Ventricular Tachycardia

JACC Case Rep. 2020 Jul 15;2(8):1178-1181. doi: 10.1016/j.jaccas.2020.05.075. eCollection 2020 Jul.

Authors

Ama K Annor¹, Stephen A May², Alexis M Fenton³, Wilson W Lam⁴

Affiliations

¹ Department of Internal Medicine, Baylor College of Medicine, Houston, Texas.
² Arrhythmia Associates of South Texas, Houston, Texas.
³ Alamo Area Heart Rhythm Consultants, PLLC, Houston, Texas.
⁴ Texas Heart Institute, Houston, Texas.

Abstract

Catecholaminergic polymorphic ventricular tachycardia is a genetic disorder that causes ventricular tachyarrhythmias via increased release of intracellular calcium. The standard diagnostic measure is an exercise stress test that reveals ventricular ectopy. We present an extraordinary case marked by a normal stress test and no relation to exertion. (Level of Difficulty: Intermediate.).

Keywords: ARVC, arrhythmogenic right ventricular cardiomyopathy; CPVT, catecholaminergic polymorphic ventricular tachycardia; ECG, electrocardiography; ICD, implantable cardioverter defibrillator; LQTS, long QT syndrome; PVC, premature ventricular contraction; SCA, sudden cardiac arrest; VF, ventricular fibrillation; VT, ventricular tachycardia; WPW, Wolff-Parkinson-White; beta-blockers; electrophysiology; exercise; genetic disorders; palpitations; ventricular fibrillation.

Publication types

Case Reports