Usefulness of QT dispersion in clinical practice

Abstract

The measurement of QT dispersion in the surface electrocardiogram has been proposed as a non invasive method for assessing inhomogeneity of myocardial repolarization and has been linked to an increased risk of arrhythmic cardiac death. Several studies have evaluated the use of QTd in a wide variety of cardiac diseases and have reached conflicting conclusions regarding its clinical significance.

Keywords

• QT dispersion
• ventricular arrhytmias
• myocardial infarction.