Table 1.

Preoperative data comparison between two groups of patients

Item	Group A	Group B	p value
N	38	47
Gender(M/F)	21/17	24/23
Age(years)	1.7 ± 1.2	1.4 ± 1.4	0.24
Weight(kg)	9.1 ± 2.3	9.3 ± 2.3	0.72
Pulmonary hypertension (mm Hg)	36.3 ± 8.2	37.2 ± 5.2	0.55
Size of VSD(mm)	4.8 ± 1.2	5.3 ± 1.3	0.17
Cardiothoracic ratio	0.53 ± 0.1	0.56 ± 0.1	0.41