The exact cause of an atrioventricular canal defect is unknown. There is some evidence to suggest a genetic component, especially in relation to Down syndrome as many Down syndrome patients have heart defects at birth.
What causes atrioventricular canal defect?
The exact cause of an atrioventricular canal defect is unknown. There is some evidence to suggest a genetic component, especially in relation to Down syndrome as many Down syndrome patients have heart {{EMAIL}}.