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Classification of Congenital Heart Anomalies*

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Classification	Examples
Cyanotic
—	Tetralogy of Fallot Transposition of the great arteries Tricuspid atresia Pulmonary atresia Persistent truncus arteriosus Total anomalous pulmonary venous return
Acyanotic
Left-to-right shunt	Ventricular septal defect Atrial septal defect Patent ductus arteriosus Atrioventricular septal defect
Obstructive	Pulmonic stenosis Aortic stenosis Aortic coarctation Hypoplastic left heart syndrome (often also manifests with cyanosis, which may be mild)
* In approximate decreasing order of frequency.