Tetralogy of Fallot (TOF) - Medx Health Assistance

Tetralogy of Fallot (TOF)

TOF (Tetralogy of Fallot) is a cardiac anomaly that refers to a combination of heart-related defects like VSD, Pulmonary Stenosis, Overriding Aorta and Right Ventricular Hypertrophy.
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TOF (Tetralogy of Fallot) is a cardiac anomaly that refers to a combination of four heart-related defects.

Four defects are as follow:

Ventricular Septal Defect (VSD): VSD is a hole between the right and left pumping chambers (ventricles) of the heart.

Overriding Aorta: In this, the aortic valve is enlarged and appears to arise from both the left and right ventricles instead of the left ventricle, like a normal heart.

Pulmonary Stenosis: Pulmonary Stenosis is a narrowing of the pulmonary valve – the valve separates the lower right chamber of the heart (right ventricle) from the main blood vessel leading to the lungs (pulmonary artery).

Right Ventricular Hypertrophy: when the heart’s pumping action overwork, it causes the muscular wall of the right ventricle to thicken. With time, this might cause the heart to stiffen, become weak, and eventually fail.


  • Bluish coloration of the skin caused by blood low in oxygen (cyanosis).
  • Shortness of breath and rapid breathing, especially during feeding or exercise.
  • Loss of consciousness (fainting)
  • Clubbing of fingers and toes (an abnormal, rounded shape of the nail bed).
  • Poor weight gain
  • Tiring easily while playing or exercising
  • Irritability
  • Prolonged crying
  • Heart murmur (sound of blood flowing through the heart)

Tetralogy of Fallot (TOF)- Procedure

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Tetralogy of Fallot (TOF)- Hospitals

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