Echocardiographic diastolic function evolution in patients with an anterior Q-wave myocardial infarction: insights from the REVE-2 study

Background: Myocardial fibrosis plays a key role in the development of adverse left ventricular remodeling after myocardial infarction (MI). This study aimed to determine whether the circulating levels of BNP, collagen peptides, and galectin-3 are associated with diastolic function evolution (both deterioration and improvement) at 1-year after an anterior MI. Methods: The REVE-2 is a prospective multicenter study including 246 patients with a first anterior Q-wave MI. Echocardiographic assessment was performed at hospital discharge and ±1-year after MI. BNP, Galectin-3 and collagen peptides were measured ±1-month after MI. Left ventricular diastolic dysfunction (DD) was defined according to the presence of at least 2 criteria of echocardiographic parameters: septal e’6 mg/l (Odds Ratio, OR=5.29; 95%CI=1.05-26.66; p=0.044), Galectin-3>13 μg/l (OR=5.99; 95%CI=1.18-30.45; p=0.031), and BNP>82 ng/l (OR=10.25; 95%CI=2.36-44.50; p=0.002) quantified at 1-month post-MI were independently associated with 1-year DD. Follow-up of the 137 patients with DD at baseline among the 159 patients showed that 36 patients (26%) had a normalized diastolic function at 1-year post-MI. Patients with a BNP>82 ng/l were less likely to improve diastolic function (OR=0.06; 95%CI=0.01-0.28; p=0.0003). Conclusions. The present study suggests that circulating levels of PIIINP, Galectin-3 and BNP may be independently associated with new-onset DD in post-MI patients.