The morphology of ToF is markedly heterogeneous and includes an absent pulmonary valve, concomitant atrioventricular septal defects, pulmonary artery branch stenosis, and pulmonary atresia with ...

Their son was born with a congenital heart defect known as tetralogy of Fallot (FOT) with pulmonary atresia. Billy has undergone three open-heart surgeries but is thankfully doing well.

The newborn was diagnosed with a serious heart condition called Tetralogy of Fallot with Pulmonary Atresia, where the pulmonary artery, responsible for carrying blood to the lungs, was missing.