Coarctation of the Aorta

Overview

Coarctation of the aorta is a narrowing of part of the aorta — the large artery that carries oxygen-rich blood from the heart to the rest of the body. The narrowing usually occurs just beyond the arteries that supply the head and arms, so blood pressure tends to be high in the upper body and reduced in the lower body. It is a congenital condition, meaning it is present from birth.

The narrowing makes the heart work harder to push blood past the tight point. Severe coarctation can make a newborn critically unwell in the first days of life, while milder narrowing may go unnoticed until childhood or adulthood, when it is often discovered because of high blood pressure or a heart murmur. Treatment aims to relieve the narrowing and protect the heart and blood vessels.

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

Who May Need This

Treatment for coarctation may be needed by newborns with severe narrowing who become unwell soon after birth, and by children and adults in whom a significant narrowing is found — often because of high blood pressure in the arms, weaker pulses in the legs, headaches, leg fatigue on exercise, or a murmur.

Whether and how to treat depends on the severity of the narrowing, the blood-pressure difference between the upper and lower body, and any associated heart conditions. Eligibility and the choice of treatment are determined by a cardiologist and, for surgery, a cardiac surgeon after full assessment.

When It May Be Recommended

Treatment is recommended when the narrowing is significant — for example when there is a marked blood-pressure difference across the coarctation, high blood pressure that is hard to control, or evidence of strain on the heart. In a critically ill newborn, urgent treatment is needed, sometimes after medication is given to keep a natural fetal blood-vessel connection open temporarily.

In older children and adults, treatment is advised to relieve the narrowing and reduce the long-term risks of untreated high blood pressure. The recommendation always depends on individual evaluation.

Diagnosis and Evaluation

Evaluation often begins with finding a difference in blood pressure or pulse strength between the arms and legs, and hearing a murmur. An echocardiogram shows the narrowing and its effect on the heart, and is especially useful in babies. In older children and adults, CT or MRI angiography gives detailed pictures of the aorta and the narrowed segment.

An electrocardiogram (ECG), blood-pressure measurements in all four limbs, and assessment of the aortic valve complete the picture. Cardiac catheterisation may be used both to measure the pressure difference and to treat the narrowing. Because associated conditions are common, a full heart assessment is important, and a second opinion may be valuable.

Treatment Options

Options depend on age and anatomy. Surgery to remove or widen the narrowed segment is often used for newborns and for complex anatomy. Balloon angioplasty, sometimes with a stent, performed through a catheter, is frequently used in older children and adults and for a narrowing that returns after earlier repair.

Medication is used to control blood pressure and, in a critically ill newborn, to stabilise the circulation before treatment, but it does not relieve the narrowing itself. The best option depends on the person’s age, the anatomy, whether it is a first-time or recurrent narrowing, and associated conditions, and is decided by the specialist team.

How It Is Performed

Surgical repair is performed under general anaesthesia, usually through an incision on the left side of the chest. The surgeon relieves the narrowing — commonly by removing the narrowed segment and joining the healthy ends of the aorta, or by widening it with a patch or a nearby artery. The heart-lung bypass machine is not always needed, depending on the technique and location.

Catheter treatment is performed in a catheterisation laboratory. A catheter with a balloon is guided to the narrowed segment and inflated to widen it, and a stent may be placed to hold the aorta open. This avoids open surgery and is often chosen for older patients and for recurrent narrowing. The approach is selected based on the individual.

Preparation

Preparation includes completing imaging and tests, controlling blood pressure, reviewing medications, and following fasting instructions before the procedure. A critically ill newborn is stabilised in intensive care first. The team will explain the planned approach, the expected stay, and what to expect afterwards.

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

Benefits and Expected Goals

The goal of treating coarctation is to relieve the narrowing, restore more normal blood flow to the lower body, reduce the strain on the heart, and improve blood-pressure control. In a critically ill newborn, it can be life-saving; in older patients, it lowers the long-term risks associated with the narrowing.

Benefits vary with age and the effects the narrowing has already caused. Importantly, treatment relieves the narrowing but does not always fully normalise blood pressure, so many people still need blood-pressure medication and lifelong follow-up. Your team can discuss realistic goals for your situation.

Risks and Possible Complications

Both surgical and catheter treatments are generally effective but carry risks.

• Bleeding, infection, or wound problems after surgery
• Bleeding or blood-vessel injury at the catheter site, or tearing of the aorta during balloon widening
• Recurrence of the narrowing (re-coarctation) over time
• Weakening and bulging (aneurysm) of the aorta at the treated site
• Persistent high blood pressure needing ongoing medication, and, rarely, injury to nearby nerves or the spinal blood supply

Your team will explain the risks specific to the chosen approach and the anatomy, and how they are minimised. Report severe pain, weakness, or very high blood pressure promptly.

Recovery, Follow-up & Aftercare

After surgery, the hospital stay is usually several days, with recovery over a few weeks; newborns and complex cases may need intensive care and longer. After catheter treatment, the stay is often shorter. Blood pressure is monitored closely, and activity is gradually increased as advised.

Lifelong follow-up is essential, with periodic imaging (echocardiogram, and CT or MRI as needed) to check for re-narrowing or aneurysm, and ongoing blood-pressure management. Antibiotics may be advised before certain procedures if there is an associated valve condition. If treated abroad, arrange follow-up with your local cardiologist before travelling home.

Medical Tourism Planning

If you are considering treatment for coarctation abroad, choose a JCI- or ISO-accredited hospital with an established cardiac programme experienced in both surgical and catheter treatment of the aorta — and, for children, a dedicated paediatric cardiac service and intensive-care unit. Request a written treatment plan and cost estimate before you travel.

Plan for the in-country stay your team recommends, confirm the plan for blood-pressure management and follow-up imaging, and clarify how any complications would be handled. Because lifelong follow-up is needed, arrange continuing cardiology care at home, and consider medical travel insurance.

Estimated Cost Factors

The cost of treating coarctation depends on the country and hospital chosen, whether the approach is surgical or catheter-based (including the cost of any stent), the complexity and the patient’s age, the length of hospital and intensive-care stay, and any complications. Newborn surgery with intensive care differs greatly in cost from a catheter procedure in an adult.

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 stent, 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 cardiac or paediatric cardiac programme experienced in coarctation treatment by both surgery and catheter, with advanced imaging and a catheterisation laboratory. On-site surgical backup and, for children, a paediatric cardiac intensive-care unit are important.

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

Alternatives

The alternatives largely concern the method of relieving the narrowing — surgery versus balloon widening with or without a stent — chosen by age and anatomy. Blood-pressure medication is an important part of care but does not relieve the narrowing and is not a substitute for treating a significant coarctation.

For a mild narrowing that is not causing strain, careful monitoring may be appropriate. A cardiologist weighing the severity, anatomy, and associated conditions can help you compare the options so the plan fits the individual.

Questions to Ask Your Doctor

• How severe is the narrowing, and does it need treatment now?
• Would surgery or a catheter (balloon and stent) procedure be better in this case, and why?
• Is there an associated condition, such as a bicuspid aortic valve, that also needs monitoring?
• What are the specific risks, including re-narrowing and aneurysm?
• Will blood-pressure medication still be needed after treatment?
• What lifelong follow-up and imaging will be required?
• What is included in the written cost estimate?