Tetralogy of Fallot or TOF is a common congenital heart disease with 4 typical anatomical defects in the heart and the circulatory system. Here is a primer.
CHD
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Atrial Septal defect or ASD is a form of congenital heart disease where there is an abnormal hole (opening) between two upper chambers of heart. This video explains the basics.
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Ventricular Septal Defect or VSD is the commonest form of congenital heart disease. Here is a primer.
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Birth defects affecting baby’s heart and the way it functions are called Congenital heart diseases (CHD). 1 in 100 children suffer from such defects. Here is a primer.