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cause of sudden cardiac death. The 5–10% rate of outof-hospital cardiac arrest is ascribed to VF in absence of organic heart disease [5, 12]. The trigger role of the ventricular premature beats (VPBs) arising from the distal Purkinje system has been identified by recent studies, which demonstrated the feasibility of eliminating or decreasing the incidence of idiopathic VF by catheter ablation of this trigger [3, 7–9, 15, 17]. However, multiple conditions like electrolyte imbalance, catecholamines, fever or drug use may facilitate induction of idiopathic VF [8, 11, 13, 14]. We report the case of a healthy woman who presented with a dramatic storm of more than 50 nonsustained and sustained VF episodes in the absence of a detectable underlying heart disease but with the presence of left bundle branch block. The morphology of initiating VBPs suggests the role of specific triggers arising from the distal Purkinje system. The concomitant presence of mild hypocalcemia without evident causes could have a possible and previously not described role in generating recurrent VF episodes.

Idiopathic left ventricular aneurysm (LVA) is a very rare clinical condition. This article describes a patient with idiopathic LVA associated with episodes of ventricular tachycardia and ventricular fibrillation. Clinical and instrumental examinations did not reveal the pathogenesis of the aneurysm. The malignant clinical course suggests that an aggressive antiarrhythmic treatment, including ICD implantation, may be warranted.