Ventricular arrhythmias in patients with COPD are associated with QT dispersion.

Abstract

Study objective: QT dispersion (QTd) and late potentials derived from signal-averaged ECG (SA-ECG) have been proposed as noninvasive predictors of cardiac arrhythmias that occur in patients with COPD. In this study, we aimed to investigate QTd and SAECG in patients with COPD.