When I first gave my mind to vivisection, as a means of discovering the motions
and uses of the heart, and sought to discover these form actual inspection, and
not from the writings of others, I found the task so truly arduous, so full of
difficulties, that I was almost tempted to think with Fracastorius that the
motion of the heart was only to be comprehended by God.
What are the
proven etiologies for congenital heart disease?
The vast majority of congenital heart disease is thought to be a result of
genetic environmental interaction, or multifactorial inheritance. Primary
genetic factors include chromosomal aberrations and single mutant gene
abnormalities. The remaninder involve primarily environmental factors such as
drugs, infections, and maternal infections.