Fig. 4

Effects of amiodarone treatment on echocardiographic parameters. Color Doppler TTE in parasternal long-axis view (a, b), and TTE in parasternal short-axis view (c, d). Echocardiography (day 4) demonstrates severe dilated cardiomyopathy with moderate MR (LVEF, 27%; LVDD, 61 mm) (a, c). Follow-up echocardiography (day 38) demonstrates significant improvement in ventricular function and MR (LVEF, 61%; LVDD, 37 mm) (b, d). LV: Left ventricle, LVEF: Left ventricular ejection fraction, LVDD: Left ventricular diastolic diameter, MR: Mitral regurgitation, RV: Right ventricle, TTE: Transthoracic echocardiography