Jimmy Kimmel’s Son Is Born With Congenital Heart Disease [Video]

Last night Jimmy Kimmel shocked his viewers when he announced that his newborn son, William John Kimmel born on April 21st was born with a congenital heart disease called, Tetralogy of Fallot with pulmonary atresia.

The disorder happens because of a structural problem with the heart. Tetralogy of Fallot is caused by a combination of four heart defects that are present at birth.

According to the Centers for Disease and Control, the defects are:

A hole in the wall between the two lower chamber – or ventricles – of the heart. This condition also is called a ventricular septal defect.

A narrowing of the pulmonary valve and main pulmonary artery. This condition also is called pulmonary stenosis.