4 doctors weighed in:
Why is atrioventricular septal defect common? With down's syndrome?
4 doctors weighed in

Dr. William Singer
Pediatrics - Neurology
2 doctors agree
In brief: Chromosomal abnormal
The association of atrial septal defect with Down Syndrome is part of the constellation of body abnormalities that characterize it.

In brief: Chromosomal abnormal
The association of atrial septal defect with Down Syndrome is part of the constellation of body abnormalities that characterize it.
Dr. William Singer
Dr. William Singer
Thank
In brief: Nobody knows
Researchers suspect that down syndromes chromosomal defect (an extra chromosome) may somehow affect the production of proteins used to create connective tissues.
The tissue between the pumping chambers of the heart s one particular form of connective tissue.

In brief: Nobody knows
Researchers suspect that down syndromes chromosomal defect (an extra chromosome) may somehow affect the production of proteins used to create connective tissues.
The tissue between the pumping chambers of the heart s one particular form of connective tissue.
Dr. Richard Ohnmacht
Dr. Richard Ohnmacht
Thank
Read more answers from doctors