Tetralogy of Fallot (TOF): Animation Explains Heart Defect and Repair

The Heart Center at Nationwide
Children's is dedicated to the unique needs of its patients.
One of the conditions the center supports is tetralogy of fallot. Tetralogy
of fallot is a heart defect made up of four heart problems. It results in
cyanotic or blue babies. The four heart problems are ventricular septal defect,
overriding aorta, pulmonary stenosis and right ventricular hypertrophy. A
ventricular septal defect is a hole in the wall between the two lower chambers
of the heart called the ventricles. The hole allows oxygen-rich blood to mix
with oxygen-poor blood. Normally the aorta attaches to the left ventricle
which pumps oxygen-rich blood through it. In an overriding aorta, the aorta has
moved forward directly over the hole between the ventricles. This allows
oxygen poor blood from the right ventricle to flow into the aorta.
Pulmonary stenosis means that the blood vessel going to the lungs called the
pulmonary artery is narrowed and the pulmonary valve doesn't open all the way.
As a result less blood reaches the lungs. These heart problems cause the baby to
be blue because the heart pumps less oxygen-rich blood to the body. Right
ventricular hypertrophy means the wall of the right ventricle is thicker than
normal. This happens because the right ventricle
has to work harder to pump blood through the narrowed pulmonary valve. Treatment
for tetralogy of fallot may include temporary and complete surgical repair
procedures. Sometimes a child is not ready for a complete repair right away.
In this case a temporary repair called a shunt can be placed until a complete
repair can be done. The shunt improves oxygen levels in the blood. During this
procedure the surgeon will place a tube called a shunt between a branch of the
aorta and the right pulmonary artery. The shunt will provide another path for
blood to get to the lungs to pick up oxygen. Instead of a shunt another
temporary procedure can be done. In this procedure a device called a stent is
placed in the narrow area to allow more blood to flow to the lungs. Most patients
have a complete repair at four to six months of age. If the main pulmonary
artery is too small it will be widened with a patch. If the pulmonary valve is
too small it may be widened with a patch called a transannular patch. If the
narrowing is below the pulmonary valve the surgeon will remove some of the
heart muscle in this area. This improves the flow of oxygen poor blood from the
right ventricle to the lungs. To fix the ventricular septal defect
the surgeon will cover the hole with a patch. The patch prevents the mixing of
oxygen poor blood with oxygen-rich blood. As a result only oxygen-rich blood flows
out of the aorta to the body from the left ventricle. The Heart Center team at
Nationwide Children's is dedicated to supporting your child. We are available
to answer all of your questions at any time at 614-722-2530 and at Nationwidechildrens.org/Heart.

26 thoughts on “Tetralogy of Fallot (TOF): Animation Explains Heart Defect and Repair

  1. I had Tetralogy of fallot since birth and got a mechanical stent for my heart. I had 2 bypasses and 3 heart operations. My heart is great but cant play any physical sport such as rugby,football,ect. The experiance was insanely good and bad. There was times i felt death but also life. It was something out of this world.

  2. Does the "pulmonary stenosis" in Tetralogy of Fallot (TOF) include hypoplasia of pulmonary artery? Or is hypoplasia of pulmonary artery separate; not part of TOF?

  3. My son also suffering from TOF he is 12 months old drs suggests surgery but money problems 😒 surgery is very expensive

  4. I’m 12 at the moment, I don’t really have any problems. I don’t know what my life span is either. Can someone tell me in the comments?

  5. My son have tetralogy of fallot also he undergo open heart surgery last 2016 in Korea via Korean foundation and now he is 4 yrs old now his ok but sometimes his lips became violet again especially when he gets tired. I hope he will pass again his another surgery soon. We are in the Philippine right now

  6. Very nice explaination I have exam today and Ur video make me easier to understand … thank you so much for this wonderful video. Hoping for the best.

  7. I feel so happy when I see all this children enjoying of good health and living a normal life. It's a gift from God that there are doctors, nurses, technology and hospitals to perform this type of Heart surgery 🙏. My dear cousin passed away in the 80's in Havana, Cuba; she was 15 years old at that time, she died after her party of 15 years(quinceañera),she passed a couple of days after the catheterization, at that time TOF was tough to repair in an underdeveloped country as Cuba in the 80's despite having very good doctors but without technology it was impossible. RIP Sonia🙏 ❤

  8. I am 21 weeks pregnant,,,,just found out today that my baby girl has this,,,😪 I am very scared, worried. I have no idea at what stage the surgery will be performed once my little girl is born and if one will be enough or I would have to go through this 😪 again,,, multiple times. Anyone has any information??

  9. I have this. I get surgery when I was 3 in 1985. Now I’m 40 and everything is fine. I make the surgery in Romania. Dr Pop De Popa Ioan.

  10. I have this.
    When I was 18 months they gave me a stent. Then at 7 years old they gave me an artificial/Pig skin lined Conduit. Like the patch but it helps the pulmonary valve open correctly.
    I'm 21 and still going strong. 😊

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