Syncope in children and adolescents and the congenital long QT syndrome

Am J Cardiol. 2003 Sep 15;92(6):746-9. doi: 10.1016/s0002-9149(03)00846-4.

Abstract

From a population-based epidemiologic cohort of children and adolescents who sought medical attention for syncope (n = 151), screening 12-lead electrocardiograms were obtained from 118 patients (79 female) to determine the frequency of significant QT prolongation. The distribution of heart rate corrected QT intervals (QTc) was compared with age- and sex-matched controls. Only one patient had QTc >470 ms.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Child
  • Cohort Studies
  • Electrocardiography
  • Epidemiologic Studies
  • Female
  • Humans
  • Long QT Syndrome / complications*
  • Long QT Syndrome / genetics
  • Long QT Syndrome / physiopathology*
  • Male
  • Reproducibility of Results
  • Syncope / etiology*
  • Syncope / genetics
  • Syncope / physiopathology*