Frenquency (N = 143)

Percentage (%)

Left-to-right shunt

Ventricular septal defect

47

32.9

Atrial septal defect

12

8.4

Patent ductus arteriosus

11

7.7

Truncus arteriosus

6

4.2

Complete atrioventricular septal defect

5

3.5

Ventricular septal defect + patent ductus arteriosus

4

2.8

Ventricular septal defect + atrial septal defect

2

1.4

Ventricular septal defect + atrial septal defect + patent ductus arteriosus

1

0.7

Ventricular septal defect + Patent ductus arteriosus + Aortic bicuspidity

1

0.7

Partial atrioventricular septal defect + Patent ductus arteriosus

1

0.7

Right-to-left shunt

Tetralogy of Fallot

28

19.6

Complex congenital heart disease

Transposition of the great vessels (2 associated with the double outlet right ventricle)

6

4.2

Pulmonary atresia with ventricular septal defect

5

3.5

Tricuspid atresia (1 associated with a total anomalous pulmonary connections)

4

2.8

Single ventricle

2

1.4

Double outlet right ventricle (1 associated with pulmonary stenosis)

2

1.4

Obstructive congenital heart disease

Congenital mitral insufficiency

3

2.1

Coartaction of the aorta

1

0.7

Pulmonary valve stenosis

1

0.7

Supravalvular pulmonary stenosis

1

0.7