Malignant Ventricular Arrhythmic Storm Triggered by Short-coupled Premature Ventricular Contractions Arising from the Anterolateral Papillary Muscle

Abstract

A case of idiopathic ventricular fibrillation (VF), triggered by ectopic beats originating from the anterolateral papillary muscle, is presented. The arrhythmia was characterised by short-coupled premature ventricular contractions (PVCs), which were resistant to isoproterenol, and ultimately treated with catheter ablation.