The value of left atrium in predicting reverse left ventricular remodeling in patients with ST-segment elevation myocardial infarction

Motivation: Understanding reverse left ventricular remodeling (r-LVR) after ST-segment elevation myocardial infarction (STEMI) is important for patients. It is unknown whether left atrium (LA) volume and function can predict r-LVR. Goal(s): The aim of study was to evaluate the changes in left heart structure and function by performing two cardiac magnetic resonance (CMR) scans and then to explore the value of LA in predicting r-LVR. Approach: A total of 105 STEMI patients were studied. The predictors of r-LVR were analyzed by logistic regression method. Results: LV end diastolic volume (LVEDV), total enhanced mass and LA reservoir strain rate were significantly predictors of r-LVR. Impact: Our study described the natural course of the left heart over time in patients with STEMI, evaluated predictors of left heart for r-LVR, and found that LA reservoir strain rate and LV longitudinal displacement had similar value for predicting r-LVR.