A baffle is a surgically created tunnel or wall within the heart or major blood vessels used to redirect the flow of blood.[1] They are used in some types of heart abnormalities that a child is born with known as congenital heart defects. Baffles are usually constructed, at least in part, from a person's own heart tissue, while other methods of redirecting blood using artificial material are known by the more generic term 'conduits'.[1]
Baffles can be made between different structures depending on the heart condition that needs to be treated.