Table 2.

The series of echocardiographic parameters

Parameters	Baseline	After 12 months	After 24 months	P - value
Cardiac structure
LAD (mm)	36.81 ± 5.68	36.50 ± 6.35	36.89 ± 6.22	0.802
LVESD (mm)	32.76 ± 6.24	32.73 ± 6.98	32.73 ± 7.59	0.974
LVEDD (mm)	51.35 ± 5.64	50.24 ± 6.24	50.50 ± 6.68	0.192
IVST(mm)	12.11 ± 1.87	12.10 ± 1.67	12.33 ± 1.30	0.175
LVPWT(mm)	12.01 ± 1.80	12.03 ± 1.57	12.29 ± 1.19	0.215
RVD(mm)	18.31 ± 2.76	18.75 ± 2.97	19.65 ± 3.00	< 0.001*
RVOT(mm)	25.86 ± 3.74	26.37 ± 3.66	27.7 ± 3.67	0.001*
MAP(mm)	22.08 ± 4.52	22.50 ± 3.60	22.26 ± 2.79	0.885
Cardiac function
FS (%)	36.07 ± 6.54	35.51 ± 7.13	36.07 ± 7.70	0.967
EF (%)	65.01 ± 8.94	64.13 ± 10.50	64.28 ± 10.41	0.867
SV (ml/bit)	81.14 ± 20.70	76.54 ± 17.97	77.35 ± 17.69	0.257
CO (L/min)	6.63 ± 1.85	6.17 ± 1.98	6.13 ± 1.69	0.038*
E/A < 1(n, %)	49, 68.06	53, 73.61	58, 80.56	0.230
PAP > 30mmHg (n, %)	21, 29.17	22, 30.56	25, 34.72	0.757
With PE (n, %)	29, 40.28	15, 20.83	17, 23.61	0.020*

P value was estimated from Chi-square test

Abbreviations: LAD left atrial diameter, LVEDD left ventricular end-diastolic dimension, LVESD left ventricular end-systolic dimension, LVPWT Left ventricular posterior wall thickness, IVST interventricular septal thickness, RVD right ventricular diameter, RVOT right ventricular outflow tract, MPA main pulmonary artery, FS Fractional shortening, EF left ventricular ejection fraction, SV stroke volume, CO cardiac output, E/A early maximum velocity / late maximum velocity, PAP Pulmonary artery pressure, PE Pericardial effusion

*P < 0.05