Table 2.

Preoperative and postoperative echocardiogragh datum of RV

	Pre. n = 41	2 weeks Post n = 38	3moths Post n = 35	1 years Post n = 19
Size of RV (mm)	32.8 ± 9.34	25.6 ± 4.32*	24.1 ± 5.08*	23.1 ± 4.61*
Pressure of PA (mmHg)	73.3 ± 25.9	38.6 ± 10.2*	32.9 ± 11.5*	31.2 ± 9.76*
Grade of TR	3.86 ± 1.33	2.62 ± 1.43*	2.13 ± 1.35*	1.21 ± 0.86*

Pre Preoperation, Post Postoperation, RV Right ventricle, PA Pulmonary artery, TR Tricuspid valve regurgitation

^*P value<0.05 Compare to “Pre group”