Infants born with<unk>  cannot feed normally (breathlessness) and have difficulty gaining weight. The mixed blood in systemic circulation leads to hypoxia (lack of oxygen to the body and organs), so infants develop cyanosis and breathlessness early.
Double inlet left ventricle
Double aortic arch
Crisscross heart
Double outlet right ventricle
Interrupted aortic arch
Right-sided aortic arch
Situs ambiguus
Tricuspid atresia