A 52-year-old member asked:
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what is a tetralogy of fallot?

1 doctor answer
Dr. Nikolaos Zacharias
25 years experience Maternal-Fetal Medicine
VSD-overriding aorta: Tetralogy of fallot is a congenital heart anomaly consisting of ventricular septal defect, right ventricular hypertrophy, pulmonary stenosis and aortic override of the vsd. It causes blue spells in undiagnosed neonates from poor blood oxygenation. It accounts for 5-10% of all congenital cardiac defects and is typically sporadic and non-syndromic. 15% of cases have aneuploidy (down) or digeorge.
Answered on Dec 9, 2013
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