title: Idiopathic long q-t syndrome: brief case report and discussion.
abstract: Idiopathic long q-t syndrome (LQTS) is an infrequently occurring familial disorder in which affected family members have an abnormally prolonged q-tc interval with syncope, ventricular arrythmias and sudden death. In this article, we present the case of a 54-year-old female admitted for syncope, who was on no medications except for insulin. Her electrocardiogram on admission had prolonged q-tc interval (0.50 ms.). She had repeated episodes of torsades de pointes during her hospitalization, which were later controlled by beta-blockers. Electrocardiograms of her mother and daughter showed asymptomatic prolonged q-tc interval. This syndrome has an autosomal dominant pattern of transmission and it was first described by Romano and Ward in a patient with normal hearing. Our case is unusual because this condition presented so late in life.
authors.affiliation: Department of Medicine, Robert C. Byrd Health Sciences Center of WVU, Morgantown.
authors.forename: W E
authors.initials: WE
authors.lastname: Noble
authors.forename: P
authors.initials: P
authors.lastname: Chaudhuri
authors.forename: M A
authors.initials: MA
authors.lastname: Qazi
mesh_terms: D000465:Algorithms; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008133:Long QT Syndrome / Q000175:diagnosis / Q000188:drug therapy / Q000235:genetics; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use; D013575:Syncope / Q000209:etiology; D016171:Torsades de Pointes / Q000188:drug therapy / Q000209:etiology
chemical_list: D011433:Propranolol