Clinical implication of LAVI over A′ ratio in patients with acute coronary syndrome

PurposeThe ratio of the left atrial volume index (LAVI) and late diastolic mitral annular velocity (A′) is a useful echocardiographic index for identifying advanced left ventricular (LV) diastolic dysfunction in patients with dyspnoea. We investigated the clinical implications and prognostic value of the aforementioned ratio (LAVI/A′) in patients with ST elevation (STE) or non-STE (NSTE) acute coronary syndrome (ACS).MethodsWe studied 212 patients with ACS. All patients underwent electrocardiography, echocardiography and measurement of plasma B-type natriuretic peptide (BNP) level on admission. The study endpoints were hospitalisation and mortality because of heart failure (HF).ResultsThere was a significant, moderate positive correlation between LAVI/A′ and natural logarithm (Ln) BNP level among the participants (r=0.48, p