Cocaine-Induced Torsades de Pointes in Idiopathic Long Q-T SyndromeSingh, Narpinder1; Singh, Harinder K.1; Singh, Parminder P.2; Khan, Ijaz A.3*American Journal of Therapeutics: July/August 2001 - Volume 8 - Issue 4 - pp 299-302 Case Reports Abstract Author Information Torsades de pointes is a ventricular tachycardia characterized by the QRS complexes of changing amplitude that appear to twist around an isoelectric line. It usually precipitates in the setting of underlying Q-T interval prolongation, which has both congenital and acquired causes. The common acquired causes of torsades precipitation are medications, electrolyte imbalance, and severe bradycardia. This report presents a case of torsades de pointes that was precipitated by substance abuse in a patient with idiopathic long Q-T syndrome and required several treatment modalities. Divisions of Cardiology, 1 Long Island College Hospital, Brooklyn, NY; 2 Detroit Medical Center, Detroit, MI; and 3 Creighton University Medical Center, Omaha, NE. *Address for correspondence: Creighton University Cardiac Center, 3006 Webster Street, Omaha, NE 68131; e-mail: firstname.lastname@example.org © 2001 Lippincott Williams & Wilkins, Inc.