Association of P-Wave Dispersion With Paroxysmal Atrial Fibrillation in Patients With Acute Anterior Wall ST Segment Elevation Myocardial Infarction

摘要

Background and Objectives P-wave dispersion (PWD) is a well-known electrophysiologic parameter of atria which are prone to fibrillation. Although paroxysmal atrial fibrillation (PAF) following an acute myocardial infarction (AMI) is not uncommon, the relationship between PWD and PAF following AMI has not been determined. Subjects and Methods We reviewed the electrocardiograms, recorded on admission and every day during hospitalization, of 144 patients with primary anterior AMIs and measured the P-wave duration. The left atrial diameter and left ventricular ejection fraction (LVEF) were evaluated by echocardiography. Results PAF occurred in 20 patients. The maximum P-wave duration and PWD were found to be significantly higher in patients with PAF than those without PAF (120.1±8.6 vs. 109.2±12.2 ms, p Conclusion The maximum P-wave duration and PWD were significant predictive factors of PAF in patients with anterior wall ST elevation AMI based on univariate analysis. On the basis of multivariate analysis, age was an independent predictive parameter for PAF as well.