Bidirectional Ventricular Tachycardia Secondary to Dichloromethane Intoxication: A Case Report.

Bidirectional ventricular tachycardia (BVT) is a rare ventricular tachyarrhythmia, and only a limited number of etiologies have been described to date. We report the case of a previously healthy 30-year-old woman who developed BVT followed by cardiac arrest after accidental ingestion of dichloromethane, an organochlorine solvent used in illicit volatile inhalant preparations. Further evaluation revealed no structural heart disease, electrolyte disturbance, or exposure to medications classically associated with BVT, supporting dichloromethane intoxication as a plausible and, to our knowledge, previously unreported trigger of this arrhythmia.