DOI: 10.12890/2025_005443
Short-coupled premature ventricular contractions in a young male with sudden cardiac arrest
Authors
taha.mansoor@wmed.edu
Keywords
Short-coupled premature ventricular contractions, cardiac arrestAbstract
Introduction: Idiopathic ventricular fibrillation secondary to short-coupled premature ventricular contractions (scPVCs) is a rare cause of sudden cardiac arrest and predominantly originates from the His-Purkinje system or right ventricular outflow tract.
Case description: A 36-year-old man with prior episodes of palpitations and a normal Holter monitor evaluation as well as a family history of sudden cardiac death presented following an out-of-hospital ventricular fibrillation cardiac arrest. After exclusion of other etiologies including structural, ischemic, and primary electrical disease, as well as the demonstration of scPVCs with moderator band origin, a diagnosis of scPVCs leading to sudden cardiac arrest was made. Following implantable cardioverter defibrillator and treatment of other medical concerns, he was discharged home.
Conclusion: Idiopathic ventricular fibrillation is an uncommon cause of sudden cardiac arrest. The diagnosis is made after the exclusion of other etiologies and the demonstration of characteristic electrocardiogram findings.
References
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