congenital

Tetralogy of Fallot

Tetralogy of Fallot (TOF), formerly known as Steno-Fallot tetralogy, is a heart defect characterized by four specific defects. Classically, the four defects are: , which is narrowing of the exit from the right ; a septal defect, which is a hole allowing blood to flow between the two ventricles; right ventricular hypertrophy, which is thickening of the right ventricular muscle; and an overriding aorta, which is where the aorta expands to allow blood from both ventricles to enter.

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Symptoms — what it feels like

·Episodes of bluish color to the skin, difficulty breathing, heart murmur, finger clubbing

Causes — why it happens

·Unknown

How it's found

·Based on symptoms, echocardiogram

Treatment

·Open heart

Complications

·Irregular heart rate, regurgitation

More in Heart

Coronary artery disease Heart failure Arrhythmia (atrial fibrillation)Cardiomyopathy Heart valve disease Rheumatic heart disease Congenital heart defect Heart attack Cardiac arrest Myocarditis Aortic stenosis Long QT syndrome

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Plain-language summary adapted from Wikipedia. Not medical advice.