title: Treatment of torsade de pointes with intravenous magnesium in idiopathic long QT syndrome.
abstract: A middle aged woman with idiopathic long QT syndrome was found to have repetitive ventricular tachycardia of the "torsade de pointes" type. The arrhythmia was resistant to mexiletine and lidocaine, but was controlled by intravenous magnesium sulfate (MgSO4). The recurrent attacks were abolished by a bolus of 2.0 g MgSO4, and extremely prolonged QTU interval was reduced by intravenous infusion of 5 mg/min MgSO4 for 36 h. This case shows the effectiveness of intravenous magnesium in controlling the attack of torsade de pointes in patients with idiopathic long QT syndrome.
authors.affiliation: Department of Internal Medicine, Tottori University School of Medicine, Yonago, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Hasegawa
authors.forename: T
authors.initials: T
authors.lastname: Takami
authors.forename: T
authors.initials: T
authors.lastname: Kaneda
authors.forename: W
authors.initials: W
authors.lastname: Yamane
authors.forename: A
authors.initials: A
authors.lastname: Hoshio
authors.forename: O
authors.initials: O
authors.lastname: Igawa
authors.forename: Y
authors.initials: Y
authors.lastname: Fujimoto
authors.forename: H
authors.initials: H
authors.lastname: Kotake
authors.forename: H
authors.initials: H
authors.lastname: Mashiba
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008133:Long QT Syndrome / Q000150:complications*; D008278:Magnesium Sulfate / Q000008:administration & dosage / Q000627:therapeutic use*; D010138:Pacemaker, Artificial; D016171:Torsades de Pointes / Q000188:drug therapy* / Q000209:etiology
chemical_list: D008278:Magnesium Sulfate