Tetralogy of Fallot (TOF) is a combination of four congenital (present at birth) heart defects that affect infants and children. The defects occur together and change the way blood flows through the heart …

In most children, the cause of tetralogy of Fallot isn't known. It's a common type of heart defect. It may be seen more commonly in children with Down syndrome or DiGeorge syndrome. Some children can …

When a newborn with significant cyanosis is first seen, they are often placed on supplemental oxygen. The increased oxygen improves the child's oxygen levels in cases of lung disease, but breathing …

Mar 13, 2025 · Tetralogy of Fallot (ToF) is a condition in which a baby has four abnormalities in their heart at birth. These issues make it hard for your baby’s heart to send enough oxygen to their entire …

Jan 8, 2026 · Tetralogy of Fallot occurs when a when a baby’s heart does not form correctly during pregnancy. People with this condition should schedule routine checkups with a heart doctor to stay …

Oct 28, 2023 · Today we are going to talk about tetralogy of Fallot, which is one of the most common congenital heart defects. In many ways, this lesion is viewed as the benchmark against which other …

Though the exact cause of TOF is unknown, an association that has been observed is an anterior deviation of the infundibular septum that results in a misaligned VSD, with an overriding aorta …

The Philadelphia Adult Congenital Heart Center, a joint program of CHOP and Penn Medicine, meets the unique needs of adults who were born with heart defects like TOF.

Apr 4, 2025 · Tetralogy of Fallot (TOF) (figure 1) accounts for approximately 7 to 10 percent of all cases of congenital heart disease (CHD) and is one of the most common cyanotic congenital heart defects.

Tet spells, also known as hypercyanotic episodes, are a more severe symptom of TOF. These sudden spells can occur after feeding, bathing, or crying. They are caused by a further decrease in blood …