Single ventricle defects :

Shortly after birth, the baby will be given an injection of medication called prostaglandin. This will encourage the mixing of oxygen-rich blood with oxygen-poor blood. The condition will then need to be treated using a three-stage surgical procedure.

Tetralogy of Fallot :

Tetralogy of Fallot is treated using surgery. If the baby is born with severe symptoms, surgery may be recommended soon after birth.
If the symptoms are less severe, surgery will usually be carried out when the child is three to six months old.

During the operation, the surgeon will close the hole in the heart and open up the narrowing in the pulmonary valve.

Total anomalous pulmonary venous connection :

Total anomalous pulmonary venous connection (TAPVC) is treated with surgery. During the procedure, the surgeon will reconnect the abnormally positioned veins into the right position in the left atrium.

Once the baby’s health has stabilised, it is likely surgery will be recommended. This should ideally be carried out during the first month of the baby’s life. A surgical technique called arterial switch is used. This involves detaching the arteries and reattaching them in the correct position.

Truncus arteriosus :

Surgery is used to treat truncus arteriosus. This is usually carried out within a few weeks after birth.
The abnormal blood vessel will be split in two to create two new blood vessels, and each one will be reconnected in the correct position..