title: QT prolongation and torsades de pointes in a patient with heart block and a pacemaker.
abstract: Prolongation of the QT interval and development of torsades de pointes are known in patients with complete heart block and profound bradycardia. We report the case of a patient with complete heart block and torsades, with long QT seen during a period of junctional tachycardia at a rate faster than the minimum pacemaker rate.
authors.affiliation: Pediatric Electrophysiology,Department of Pediatrics,Morgan Stanley Children's Hospital of New York Presbyterian,New York,New York,United States of America.
authors.forename: Brett S
authors.initials: BS
authors.lastname: Bernstein
authors.affiliation: Pediatric Electrophysiology,Department of Pediatrics,Morgan Stanley Children's Hospital of New York Presbyterian,New York,New York,United States of America.
authors.forename: Eric S
authors.initials: ES
authors.lastname: Silver
authors.affiliation: Pediatric Electrophysiology,Department of Pediatrics,Morgan Stanley Children's Hospital of New York Presbyterian,New York,New York,United States of America.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Liberman
mesh_terms: D000293:Adolescent; D006327:Heart Block / Q000150:complications*; D006801:Humans; D008133:Long QT Syndrome / Q000209:etiology*; D008297:Male; D010138:Pacemaker, Artificial; D016171:Torsades de Pointes / Q000209:etiology*
keywords: Heart block; paediatrics; torsades de pointes