چكيده لاتين :
Background: P wave dispersion (PWD) is defined as the difference
between the maximum P wave duration (Pma;,:) and the
minimum P wave duration (Pmin) in 12-leads of the surface
electrocardiography. The aim of this study was to evaluate the
values of PWD during atrial fibri Ilation (A F) after acute myocardial
infarction (AMI).
Methods: We prospectively evaluated atrial rhythms of 350
patients (251 males, 99 females) at their first AMI. The measurements
included left ventricular ejection fraction (LVEF)
and left atrial dimensions (LAD) by means of echocardiography.
On admission an ECG was obtained and repeated daily
during hospital ization.
Results: Fifty patients had AF after AMI. Pma:-; was significantly
higher (140.8(PLUS-MINUS) 18.9 rns) among patients with AF than
patients without AF (106.5(PLUS-MINUS) 17.3 ms). This was also true about
Pmill (66.4(PLUS-MINUS)18.3 ms vs. 57.7(PLUS-MINUS)15.7 ms), PWD (74.4(PLUS-MINUS)20.6 rns
vs. 48.7(PLUS-MINUS)18.9 ms) and LVEF (35.2(PLUS-MINUS)9.4% vs. 39.3(PLUS-MINUS)0.9%).
Whereas, there was no significant difference between the two
groups in respect to LAD (36.5(PLUS-MINUS)7.4 mrn vs. 35.1(PLUS-MINUS) 5.9 mm)
Conclusion: Based on the univariate analysis results, Pmill,
Pma:-;, PWD, LVEF and age were significant predictors of atrial
fibrillation in patients with first acute myocardial infarction.
However, multivariate analysis failed to disclose such independent
predictors for atrial fibrillation in these patients
