Left ventricular remodeling in the acute (A, C, E) and chronic group (B, D, F). A and B. There is significant reduction in fractional shortening following ischemia-reperfusion and persists up to 6 weeks. C and D. There is a trend towards increased end systolic dimension 60 minutes following ischemia. There is progressive dilation of the left ventricle from 1–6 weeks. E and F. The estimated left ventricular mass increased at 3 weeks and progressed at 6 weeks. (LVIDd-left ventricular internal diameter in diastole, LVIDs-left ventricular internal diameter in systole).