Congenital Heart Block
Congenital heart block is a rare disorder which has an occurrence of about 1 in 22,000 live births. The underlying cause for congenital heart block is any disturbances in the transfer of electrical nerve impulses that regulate the normal rhythmic, pumping action of cardiac muscle. If the transmission of the electrical signal is obstructed, the blocked transmission is known as heart block or AV block. If the blockade occurs in fetus or new born then the condition is known as congenital heart block. Thus condition neither alters the flow of blood nor cause any blockage or damage to the major or minor coronary arteries.