Fig. 1

Electrocardiogram and echocardiographic images prior to the current admission. a Electrocardiogram 2.5 years before the current admission. T-wave inversion was observed in II, III, aVF and precordial leads. b, c Echocardiography 2.5 years before the current admission at end diastole (b) and end systole (c). Left ventricular wall motion was diffusely decreased including the base of the left ventricle (arrowheads).d, e Left ventriculogram at end diastole (d) and at end systole (e). f, g Echocardiography 2.5 years before the current admission at end diastole (f) and end systole (g). Wall motion of left ventricle, including the base (arrowheads) remained impaired. The calibration of the electrocardiogram indicates 1 mV