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English: What is Tetralogy of Fallot? Tetralogy of Fallot (TOF) is a congenital heart condition characterized by four heart abnormalities—stenosis in the right ventricular outflow tract, right ventricular hypertrophy, ventricular septal defect, and aortic override of septal defect. Together, these can cause cyanosis in the newborn.
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Tetralogy of Fallot (TOF), formerly known as Steno-Fallot tetralogy, [9] is a congenital heart defect characterized by four specific cardiac defects. [4] Classically, the four defects are: [ 4 ] pulmonary stenosis , which is narrowing of the exit from the right ventricle;
Heart presenting a tetralogy of fallot # pulmonic stenosis # overriding aorta # ventricular septal defect (VSD) # right ventricular hypertrophy Modified version by Dake of the original heart diagram by Wapcaplet. Se
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Tetralogy of Fallot is actually the most common cause of cyanotic congenital heart defects, accounting for about 50-70%, as well as about 10% of all congenital heart defects in general. Now, it’s not quite clear why some babies develop TOF but it is associated with chromosome 22 deletions and DiGeorge syndrome.
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Fetal abnormalities are conditions that affect a fetus or embryo, are able to be diagnosed prenatally, and may be fatal or cause disease after birth.They may include aneuploidies, structural abnormalities, or neoplasms.