...of the analysis, the most significant predictors of AF are: LVDD and LAVI. In recent studies, increased LAVI >26 ml/m2 has also been recognized as a relative independent marker of left ventricular filling pressure and LVDD in patients with suspected heart failure with preserved left ventricular ejection fraction (LVEF) (Lim et al., 2006). ...LAVI has been proposed as a biomarker for both diastolic left ventricular dysfunction and cardiovascular risk (Douglas et al. 2003, Alsaileek et al. 2006). LAVI > 34ml/m2 is an independent predictor of death, heart failure, atrial fibrillation and ischemic stroke (Abhayaratna et al., 2006). ...the aim of this study is to evaluate the effect of LAVI on the occurrence of atrial fibrillation after surgical myocardial revascularization. According to the degree of diastolic dysfunction, preoperatively the most prevalent diastolic dysfunction was first degree 72/116 (Table 3).