Table 1. Comparison of echocardiographic parameters at admission with those after 2 years of treatment.

Echocardiographic parameters	Before treatment	After treatment
LV EF (%)	26	65
LV diastolic dimension (mm)	60	44
RV diastolic dimension (mm)	38	29
mPAP† (mmHg)	34.9	30.4
Peak systolic tissue velocity of tricuspid annulus (cm/sec)	6.5	15.2

After 2-year treatment period, mPAP estimated by echocardiography is still elevated whereas the left ventricular function was restored (right column). ^†, mPAP =79-0.45 (acceleration time at pulmonic valve). EF, ejection fraction; LV, left ventricle; RV, right ventricle; mPAP, mean pulmonary arterial pressure.