2. How Heart Defects Affect the Heart
Heart defects can develop and cause issues in many parts of your baby’s heart. For instance, heart defects can the blood flow in the heart via the arteries and veins (blood flow from the body to the heart).
Alternatively, heart defects can impact the heart via the heart valves (which control flow to and from the heart) or via the septum (which divides the heart’s left and right sides).