Relation between QT dispersion and myocardial viability in ischemic cardiomyopathy

Am J Cardiol. 2003 Sep 15;92(6):712-5. doi: 10.1016/s0002-9149(03)00835-x.

Abstract

The aim of this study was to evaluate the relation between QT dispersion and myocardial viability as assessed by single-photon emission computed tomography. The study population included 97 consecutive patients with severely impaired left ventricular function secondary to chronic coronary artery disease. Patients with a low QT dispersion had a substantial amount of viable myocardium, whereas patients with a high QT dispersion had predominantly nonviable scar tissue.

Publication types

  • Evaluation Study

MeSH terms

  • Aged
  • Cardiomyopathies / diagnostic imaging*
  • Cardiomyopathies / etiology
  • Cardiomyopathies / physiopathology*
  • Coronary Artery Disease / complications
  • Coronary Artery Disease / diagnostic imaging*
  • Coronary Artery Disease / physiopathology*
  • Electrocardiography*
  • Female
  • Fluorodeoxyglucose F18
  • Humans
  • Male
  • Middle Aged
  • Myocardial Ischemia / diagnostic imaging*
  • Myocardial Ischemia / etiology
  • Myocardial Ischemia / physiopathology*
  • Predictive Value of Tests
  • Radiopharmaceuticals
  • Severity of Illness Index
  • Tissue Survival / physiology*
  • Tomography, Emission-Computed, Single-Photon*
  • Ventricular Dysfunction, Left / complications
  • Ventricular Dysfunction, Left / diagnostic imaging*
  • Ventricular Dysfunction, Left / physiopathology*

Substances

  • Radiopharmaceuticals
  • Fluorodeoxyglucose F18