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Table 1 Prevalence of 22q11.2 deletions in patients with CHD

From: A modified multiplex ligation-dependent probe amplification method for the detection of 22q11.2 copy number variations in patients with congenital heart disease

Cardiac phenotypes

Total subjects

22q11.2 deletion subjects

Subjects frequency (%)

Conotruncal cardiac defects

   

Tetralogy of Fallot

231

20

8.7

Pulmonary atresia/Ventricular septal defect

135

17

12.6

Double outlet right ventricle

115

  

Transposition of great arteries

91

  

Tricuspid atresia

20

  

Persistent truncus arteriosus

12

1

8.3

Interrupted aortic arch

11

  

Non-conotruncal cardiac defects

   

Single atrium/Single ventricle

58

  

Atrioventricular septal defect

59

  

Total anomalous pulmonary venous connection

30

1

3.3

Partial anomaly of pulmonary venous connection

14

  

Subvalvular aortic stenosis

16

  

Coarctation of the aorta

15

  

Others

11

  

Total

818

39

4.8

  1. Atrioventricular septal defect involved complete, partial and transitional atrioventricular septal defect. Others involved Aortopulmonary window and Cor triatriatum.