The Predictive Value of the Combined Systolic-Diastolic Index for Atrial
Fibrillation After Coronary Artery Bypass Surgery
Abstract
Objective: Atrial fibrillation (AF) after coronary artery bypass
grafting (CABG) is a factor that causes an increase in mortality and
morbidity. Therefore, predicting post-CABG AF development is important
for treatment management. In this study, we investigated the value of
the ratio E/(Ea × Sa) as a combined systolic-diastolic index in
predicting post-CABG AF development. Methods: This prospective study
included 102 patients who underwent only isolated coronary bypass.
Preoperative demographic features, biochemical and hematological
parameters, and the electrocardiographic data of all patients were
recorded. The E/(Ea × Sa) indices were calculated from the
echocardiographic measurements. Those who retained their postoperative
sinus rhythm were defined as group 1, and those who developed AF were
defined as group 2. Results: Group 2 had significantly higher lateral
(group 1: 1.14 ± 0.61 vs. group 2: 1.47 ± 0.87; p = 0.02), medial (group
1: 1.61 ± 0.70 vs. group 2: 1.99 ± 0.91; p = 0.02), and mean (group 1:
1.30 ± 0.58 vs. group 2: 1.62 ± 0.74; p = 0.001) E/(Ea×Sa) indices than
group 1. In the univariate analysis, age, CHA2DS2-VASc score, sPAP, and
mean E/(EaxSa) index were found to be significant predictors of
post-CABG AF development. However, only the mean E/(EaxSa) index was
found to be a significant predictor of post-CABG AF development in the
multivariate analysis (OR: 2.31 95% CI 1.02–5.24; p = 0.04).
Conclusions: The combined systolic-diastolic index predicted the
development of post-CABG AF.