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  1. Tetralogy of Fallot - Symptoms and causes - Mayo Clinic

    Oct 28, 2023 · Tetralogy of Fallot (teh-TRAL-uh-jee of fuh-LOW) is a rare heart condition that is present at birth. That means it's a congenital heart defect. A baby born with the condition has four different …

  2. Tetralogy of Fallot (TOF) - Johns Hopkins Medicine

    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 …

  3. Tetralogy of Fallot - Wikipedia

    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 …

  4. Tetralogy of Fallot | American Heart Association

    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 …

  5. Tetralogy of Fallot (ToF): Symptoms, Causes & Treatment

    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 …

  6. Tetralogy of Fallot (TOF) - Children's Hospital of Philadelphia

    Aug 5, 2024 · Tetralogy of Fallot (TOF) is a congenital heart defect that can be diagnosed either before or after a baby is born. Learn more about TOF.

  7. Tetralogy of Fallot (TOF) - Boston Children's Hospital

    Tetralogy of Fallot (TOF) is a serious congenital heart defect affecting about two in 10,000 babies. In TOF, a set of four abnormalities in the heart’s anatomy prevent enough oxygen-poor (blue) blood …

  8. Tetralogy of Fallot - PMC

    Tetralogy of Fallot (ToF) is one of the commonest cyanotic congenital heart malformations and is characterised by four cardinal features: ventricular septal defect (VSD); right ventricular (RV) outflow …

  9. Tetralogy of Fallot | Symptoms, Diagnosis & Treatment

    Tetralogy of Fallot is most often diagnosed in the first few weeks of life due to either a loud murmur or cyanosis. Babies with tetralogy of Fallot usually have a patent ductus arteriosus at birth that provides …

  10. Tetralogy Of Fallot (TOF) | Children's Hospital Colorado

    Tetralogy of Fallot is a congenital heart defect that affects four main areas of the heart. One feature of the condition is the incorrect formation of the septum (partition) between the left ventricle (1) and t he …