title: Documented sudden cardiac death in prolonged QT syndrome.
abstract: Documentation of the mechanism of sudden death is described in a patient with a prolonged QT interval. Ventricular tachycardia was initiated by a ventricular premature beat (VPB) with a prematurity index similar to previous isolated VPBs. This event occurred despite the fact that the patient was receiving phenytoin sodium, a drug known to shorten the QT interval.
mesh_terms: D000368:Aged; D003645:Death, Sudden / Q000503:physiopathology*; D048909:Diabetes Complications; D004077:Digoxin / Q000627:therapeutic use; D004562:Electrocardiography; D004830:Epilepsy, Tonic-Clonic / Q000188:drug therapy; D005665:Furosemide / Q000627:therapeutic use; D006323:Heart Arrest / Q000150:complications; D006333:Heart Failure / Q000150:complications / Q000188:drug therapy; D006801:Humans; D008297:Male; D010672:Phenytoin / Q000627:therapeutic use; D011189:Potassium Chloride / Q000627:therapeutic use; D014693:Ventricular Fibrillation / Q000150:complications
chemical_list: D010672:Phenytoin; D011189:Potassium Chloride; D004077:Digoxin; D005665:Furosemide