3 doctors weighed in:
How commonly is congenital heart disease genetic?
3 doctors weighed in

Dr. James Ferguson
Pediatrics
2 doctors agree
In brief: Polygenic problem
The information that codes for proper heart formation is shared by many genes on chromosomes.
Genetic studies show linkage, where a person with a form of chd has a 4% chance of having a first degree relative with any form of chd as well as a 4% risk of having a child with a chd. A few rare syndromes have higher genetic risk (dominant = 50%) that sometimes have chd as part of the syndrome.

In brief: Polygenic problem
The information that codes for proper heart formation is shared by many genes on chromosomes.
Genetic studies show linkage, where a person with a form of chd has a 4% chance of having a first degree relative with any form of chd as well as a 4% risk of having a child with a chd. A few rare syndromes have higher genetic risk (dominant = 50%) that sometimes have chd as part of the syndrome.
Dr. James Ferguson
Dr. James Ferguson
Thank
Get help from a real doctor now
Dr. Adam Smith
Board Certified, Internal Medicine
13 years in practice
382K people helped
Continue
107,000 doctors available
Read more answers from doctors