If the ASD is small, the person may not need treatment. Congestive heart failure and arrhythmias may be treated with medicines. People with large defects usually need open heart surgery. This helps prevent further heart and lung problems. Surgery is generally very effective in closing the defect and is quite safe. People with heart and lung problems from their defect may need medical treatment before they can have surgery.
Surgery carries a risk of bleeding, infection, and allergic reaction to anesthesia. Rarely, arrhythmias or death occur because of the surgery. Medicines used for congestive heart failure or arrhythmias may cause allergic reactions or salt imbalances.
In uncomplicated cases, people can usually return to normal activity after recovery. Some people may require further treatment if heart or lung damage was severe before surgery.
In some cases, the individual may have regular visits with the healthcare provider. Periodic EKGs and echocardiograms may be ordered. Any new or worsening symptoms should be reported to the healthcare provider.