Overview
An atrial septal defect lets extra blood flow into the right side of the heart and lungs. Small defects may close on their own in childhood. Larger ones may cause problems later in life if not closed.
Symptoms
- Often no symptoms in childhood
- Shortness of breath on exertion
- Tiredness
- Palpitations or an irregular heartbeat in adults
- A heart murmur heard by a doctor
Causes and risk factors
It develops before birth. Risk factors include some genetic conditions, a family history of heart defects and certain infections or medicines during pregnancy.
Diagnosis
An echocardiogram confirms the size and position of the hole. ECG and chest X-ray may also be done.
Treatment
Small defects may only need monitoring. Larger defects are closed with a device inserted through a vein (catheter closure) or with heart surgery.
When to see a doctor
See a doctor if a heart murmur is found, or if you develop breathlessness, tiredness or palpitations.
This information is for general education and does not replace advice from a qualified doctor. For a medical emergency, call +92-51-8446666 or go to the nearest emergency department.
