Transposition of the Great Arteries (TGA) and Genetics

I found this information on another blog.  Interesting and a little bit reassuring for us.

The American Heart Association posted a new “Ask the Pediatric Cardiologist” question today on DTGA and genetic factors, including increased risk of having children in the future who also have heart defects. For information, click here. According to this source…

For a couple who’s had one child with DTGA and has no other family members with transposition, the chance of having another child with DTGA increases slightly to about 18 in 1,000 or 1.8 percent. This is also about the same chance of this baby being born with a form of congenital heart disease other than DTGA. This gives a greater than 98 percent chance that the baby will be born with a normal heart.