IFNA1 and Ventriculomegaly: Post-MI IFN-α administration deteriorated ventricular dilatation at day 28, shown by a further increase of LVID in diastole (Fig. 2b; P < 0.05) and of the LV area at day 28 in both diastole (Fig. 2f; P < 0.01) and systole (Fig. 2h; P < 0.05).