ASD (Atrial Septal Defect) Closure

Overview

An atrial septal defect (ASD) is a hole in the wall that separates the two upper chambers (atria) of the heart. It is a common congenital heart defect present from birth. Through the hole, some oxygen-rich blood from the left atrium flows back to the right atrium, so the right side of the heart and the lungs must handle more blood than normal, which over time can enlarge the right heart and raise pressure in the lungs.

ASD closure is the procedure to seal this hole, either with a catheter-delivered device that is placed without opening the chest, or with open-heart surgery in which the defect is stitched or patched. Closing a significant ASD relieves the extra load on the heart and lungs.

This page is an educational overview only — it is not medical advice, and no outcome can be guaranteed.

Who May Need This

ASD closure may be recommended for children or adults with a defect large enough to cause the right side of the heart to enlarge, or to produce symptoms such as breathlessness, tiredness, palpitations, or frequent chest infections. Because some ASDs are silent for years, they are sometimes discovered in adulthood.

Not every ASD needs closing — small defects with no effect on the heart may simply be monitored, and some close naturally in early childhood. Eligibility and the choice between device and surgical closure are determined by a cardiologist after assessing the defect’s size, type, and effect on the heart.

When It May Be Recommended

Closure is generally recommended when a defect is causing the right heart to enlarge, when there is significant extra blood flow to the lungs, or when symptoms are present. Acting before the heart and lungs are strained for many years is an important goal, and closure is often advised in childhood for suitable defects.

Closure may not be advised if the defect is small and harmless, or if lung pressures have become too high, in which case a specialist assessment guides the decision. The recommendation always depends on individual evaluation.

Diagnosis and Evaluation

The central test is an echocardiogram, which shows the hole, its size and location, and the effect on the heart chambers. A transoesophageal echocardiogram gives especially detailed views and helps assess whether a device can be used. An electrocardiogram (ECG) and chest X-ray add information about the heart’s size and rhythm.

Additional tests may include measurement of blood-flow ratios and, in some cases, cardiac catheterisation to assess lung pressures. Because the defect’s anatomy — including the rim of tissue around it — determines whether device closure is possible, careful imaging is essential. A second opinion may be valuable.

Treatment Options

Options depend on the defect. Small, harmless ASDs may be managed with monitoring alone. Significant defects are treated by catheter-based device closure, suitable for many secundum ASDs, or surgical closure for other types, very large defects, or those without enough surrounding tissue to anchor a device.

Medication does not close the hole but may be used to manage related problems such as an irregular rhythm. The best option depends on the defect’s size, location, and type, and the person’s overall health, and is decided with the cardiology team.

How It Is Performed

In device closure, performed in a catheterisation laboratory under sedation or general anaesthesia, a catheter is guided through a vein (usually in the groin) to the heart. A folded closure device is passed through the catheter and opened across the defect, forming two discs that sandwich the septum and seal the hole. Over time the heart’s own lining grows over the device.

In surgical closure, performed under general anaesthesia through the breastbone or a smaller incision, the child or adult is placed on a heart-lung bypass machine, and the surgeon closes the defect directly with stitches or a patch. Once repaired, the heart is restarted, the bypass machine withdrawn, and the chest closed. The approach is chosen based on the defect.

Preparation

Preparation includes completing imaging and tests, reviewing medications, and following fasting instructions before the procedure. For device closure, you will be advised about the antiplatelet medication needed afterwards and about precautions such as antibiotics before certain procedures for a period.

If you are travelling for treatment, arrange for the recommended in-country stay, bring copies of your echocardiogram and cardiac records, and organise support for recovery. Ask about activity restrictions and when it will be safe to fly home.

Benefits and Expected Goals

The goal of ASD closure is to stop the abnormal blood flow between the atria, relieve the extra load on the right heart and lungs, and prevent or reduce long-term problems such as heart enlargement, rhythm disturbances, and raised lung pressures. Many people feel improved exercise tolerance and fewer symptoms after closure.

Benefits are greatest when closure is done before the heart and lungs are strained for many years, and outcomes vary with age and the pre-existing effects of the defect. Closure corrects the hole but ongoing follow-up remains important. Your team can discuss realistic goals for your situation.

Risks and Possible Complications

ASD closure is generally safe, but each approach carries risks.

• Bleeding, bruising, or blood-vessel injury at the catheter site (device closure)
• Bleeding, infection, or wound problems after surgery
• Movement or, rarely, erosion of a closure device, and residual leakage across the defect
• Irregular heart rhythms, and, rarely, blood clots or stroke
• Reaction to anaesthesia or contrast dye

Your team will explain the risks specific to the chosen approach and your health, and how they are minimised. Report any concerning symptoms promptly during recovery.

Recovery, Follow-up & Aftercare

After device closure, many people go home within a day or two and resume light activity within days, avoiding strenuous exertion briefly, and take antiplatelet medication for a period while the device becomes covered by the heart’s lining. After surgical closure, the hospital stay is a few days to a week and recovery over several weeks.

Follow-up includes echocardiograms to confirm the defect is sealed and the heart is responding well, and monitoring of the heart rhythm. Antibiotics may be advised before certain dental or surgical procedures for a time. If treated abroad, arrange follow-up with your local cardiologist before travelling home, and avoid flying until cleared.

Medical Tourism Planning

If you are considering ASD closure abroad, choose a JCI- or ISO-accredited hospital with an established cardiology programme experienced in both device and surgical closure — and, for children, a dedicated paediatric cardiac service. Verify the specialist’s experience and request a written treatment plan and cost estimate before you travel.

Plan for the in-country stay your team recommends, confirm what medications and follow-up you will need, and clarify how any complications would be handled. Arrange continuing cardiology care at home, and consider medical travel insurance.

Estimated Cost Factors

The cost of ASD closure depends on the country and hospital chosen, whether the approach is catheter-based (including the cost of the closure device) or surgical, the specialist’s fees, the length of stay, and any additional imaging or complications. Device closure and open surgery differ in cost and length of stay.

Many international destinations offer these procedures at a fraction of typical US prices, but figures vary widely by case. Prices quoted online are only estimates — always request a personalized written quote that lists exactly what is included, including any device, before making any decision.

Choosing a Hospital or Specialist

Look for a hospital with recognised accreditation (JCI, ISO, or a strong national equivalent) and a cardiology or paediatric cardiology programme experienced in ASD closure by both device and surgery, with advanced echocardiography and a catheterisation laboratory. On-site cardiac surgical backup is important for device procedures.

Confirm the specialist’s experience, ask about international patient services and interpreter support, and clarify how follow-up and any complications would be handled. Transparent, written cost and treatment plans are good signs of a quality programme.

Alternatives

For a small, harmless ASD, the alternative to closure is watchful monitoring with periodic echocardiograms. For defects that do need treatment, the alternatives are between device closure and surgical closure, chosen by the defect’s anatomy. Medication does not close the hole but may manage related rhythm problems.

Each option has different benefits, risks, and recovery. A cardiologist weighing the size, location, and effect of your defect can help you compare the alternatives so the plan fits you.

Questions to Ask Your Doctor

• Does my (or my child’s) ASD need to be closed, or can it be monitored?
• Is device closure possible, or is surgery needed, and why?
• What are the specific risks in my case, and how are they managed?
• What medications and precautions will I need afterwards, and for how long?
• How long is the hospital stay, and when can I return to activity and fly?
• What follow-up will I need to confirm the defect is sealed?
• What is included in the written cost estimate, including any device?