Table 1 The preoperative biometric data as well as the hemodynamic parameters of patients undergoing intraoperative device closure of perimembraneous VSD

Number of patients

30

41

Male/female

19/11

17/24

P > 0.05

Age (months)

8.13 ± 0.72

7.61 ± 0.59

P > 0.05

Body weight (kg)

8.13 ± 0.45

7.85 ± 0.39

P > 0.05

VSD size (mm)

5.72 ± 0.28

5.62 ± 0.17

P > 0.05

Occluder Size (mm)

7.51 ± 0.31

7.51 ± 0.17

P > 0.05

Qp/Qs

2.45 ± 0.04

2.44 ± 0.03

P > 0.05

operative time (minutes)

41.1 ± 1.2

33.8 ± 0.9

P < 0.05

aortic regurgitation (%)

1/30

2/41

P > 0.05

Follow-up (months)

3.2 ± 2.1

3.5 ± 2.2

P > 0.05