title: Caffeine-induced cardiac arrhythmia: an unrecognised danger of healthfood products.
abstract: We describe a 25-year-old woman with pre-existing mitral valve prolapse who developed intractable ventricular fibrillation after consuming a "natural energy" guarana health drink containing a high concentration of caffeine. This case highlights the need for adequate labelling and regulation of such products.
authors: Department of Emergency Medicine, Fremantle Hospital, WA. mariannecannon@hotmail.com
authors: M E
authors: ME
authors: Cannon
authors: C T
authors: CT
authors: Cooke
authors: J S
authors: JS
authors: McCarthy
mesh_terms: D000328:Adult; D001628:Beverages / Q000506:poisoning*; D002110:Caffeine / Q000506:poisoning*; D004338:Drug Combinations; D017809:Fatal Outcome; D005260:Female; D058870:Food, Organic / Q000506:poisoning*; D006801:Humans; D008945:Mitral Valve Prolapse / Q000150:complications; D013805:Theobromine; D013806:Theophylline; D014693:Ventricular Fibrillation / Q000139:chemically induced*
chemical_list: D004338:Drug Combinations; C092099:guarana powder; D002110:Caffeine; D013806:Theophylline; D013805:Theobromine