Table 1 Demographic and clinical characteristics

Number of enrolled patients

79

Age (month)

4.4 ± 3.9 (3.5–5.3)

Male (%)

50 (63.3%)

Height (cm)

60.5 ± 9.3 (58.4–62.6)

Weight (kg)

5.5 ± 2.2(5.0-5.9)

BMI (kg/m²)

14.4 ± 2.1 (14.0-14.9)

BSA (m²)

0.3 ± 0.1 (0.2–0.3)

Prematurity (%)

10 (12.7%)

Caesarean delivery

35 (44.3%)

RA diameter (mm)

18.5 ± 3.8 (17.6–19.3)

Gestational age at birth

38^+ 3(33^+ 3 − 40^+ 5)

Anterior fontanelle size (cm²)

2.1 ± 2.0 (1.6–2.5)

Multiple pregnancies

5 (6.33%)

Head circumference

38.1 ± 4.3 (37.1–39.0)

Length of catheterization

Diseases

11.0 ± 1.0 (10.0–12.0)

 Tetralogy of Fallot

17 (21.5%)

 Ventricular septal defect

15 (19.0%)

 Double-outlet right ventricle

14 (17.7%)

Aortic disease

12 (15.2%)

 Pulmonary atresia

9 (11.4%)

Anomalous pulmonary venous drainage

5 (6.3%)

 Patent ductus arteriosus

3 (3.8%)

 Others

4 (5.1%)