Best Doctors for Fontan Procedure in India

The Fontan is the third operation in a sequence, and by the time a family reaches it they usually know what they are looking for. Volume in single ventricle surgery, and a team that will still be there in ten years.

1. Single Ventricle Work Is Concentrated in a Few Units

Not every hospital with a paediatric cardiac programme takes on staged single ventricle surgery. It requires a unit comfortable with the whole pathway, from a neonatal first stage through to Fontan completion, and comfortable managing what follows.

Ask how many Fontan completions the unit performs each year, and how many children they currently follow who have had one. The second question tells you more than the first.

2. The Intensive Care Matters as Much as the Surgery

Children come out of a Fontan with a circulation that behaves unlike a normal one, and the first week is where that is managed. Fluid balance, chest drainage and lung pressures all need handling by people who see this physiology regularly.

Ask whether the intensive care unit is paediatric and cardiac, who staffs it overnight, and whether extracorporeal support is available if your child deteriorates.

3. Assessment Before Committing to Travel

Fontan eligibility turns on pressure measurements taken inside the heart, not on how a child looks. Much of the assessment can be reviewed remotely before anyone flies, and the honest answer is sometimes that a child is not yet ready.

That is a better answer to receive by email than after a long flight.

4. Language and Reports

Clinical work at the major centres runs in English, so you can read the catheterisation and echo reports yourself and carry home a discharge summary your own cardiologist can act on. Interpreters for Arabic, Bengali, Russian, French and Kiswahili are available at most of these hospitals, arranged before you arrive.

5. Cost, and the Length of the Trip

Costs in India are generally lower than in Europe, North America or the Gulf. What families underestimate is not the surgery but the length of stay, because Fontan recovery is measured in weeks after discharge rather than days.

Section 12 gives published figures and what they exclude. Any number quoted before your child's catheterisation results have been read is guesswork.

1. What the Fontan Procedure Does

The Fontan is an operation for children born with only one working pumping chamber. Instead of trying to build a second one, it removes the heart from part of the job.

Blood returning from the lower body is routed directly into the lung arteries, bypassing the heart altogether. The single working ventricle is then left to do one job, pumping to the body, rather than two. Blood reaches the lungs passively, driven by pressure in the veins rather than by a pump.

That is the whole idea, and it explains most of what follows on this page. A circulation without a pump on the lung side works, but it works differently, and it carries consequences that last for life.

For the procedural detail, see the treatment guide for this operation.

2. It Is the Third Stage, Not the First

Almost no child goes straight to a Fontan. It completes a sequence that usually begins in the first days of life.

Stage one, in the newborn period. An operation to establish a reliable supply of blood to the lungs, or to reduce it where there is too much. Which operation depends on the underlying defect.

Stage two, usually around four to six months. The vein returning blood from the head and arms is connected directly to the lung artery, taking part of the load off the single ventricle.

Stage three, the Fontan completion, usually between eighteen months and four years. The vein returning blood from the lower body is connected as well, completing the diversion.

If your child has not had a successful second stage, a Fontan is not the next conversation. The underlying conditions that lead down this path include hypoplastic left heart syndrome, tricuspid atresia, double-inlet left ventricle, pulmonary atresia with an intact ventricular septum, and some heterotaxy syndromes.

3. Who Qualifies, and Who Does Not

Eligibility depends on numbers measured inside the heart rather than on how well a child appears. A child can look well and still not be a candidate, and the reverse also happens.

Broadly, a unit is looking for:

• A successful second stage already completed, with favourable pressures since

• Low resistance in the lung blood vessels

• Low average pressure in the lung arteries

• A single ventricle still pumping adequately

• A valve between the chambers that is not leaking significantly

• Lung arteries of adequate size and shape

Where lung vessel resistance or pressure is too high, a Fontan carries a high risk of failing, and doing it anyway is not a kindness. The same applies to severe ventricular dysfunction or a significantly leaking valve, though a leaking valve can sometimes be repaired at the same time.

Ask directly whether your child meets these criteria, and ask what the numbers were. If the answer is that they do not yet, ask what would need to change and when reassessment would happen.

4. The Assessment Before Surgery

A Fontan is not scheduled on an echocardiogram alone. Cardiac catheterisation is usually needed, because it measures the pressures and resistances that decide whether the operation can work.

Expect some combination of:

• Cardiac catheterisation with pressure measurements

• Echocardiography, sometimes including a scan from inside the oesophagus under anaesthesia

• Cardiac MRI, to measure ventricular volumes and function precisely

• CT scanning of the lung arteries

• Blood tests including clotting studies, and liver function tests

• A developmental assessment

If catheterisation was done more than about six months ago, or your child's condition has changed since, expect it to be repeated on arrival. That is not duplication for its own sake. The decision to proceed rests on current numbers.

5. Records to Send Before You Travel

An opinion given without these is provisional. Send:

• Operation notes from stage one and stage two

• The most recent cardiac catheterisation report, with the pressure and resistance figures

• All echocardiography reports, with image files or video loops where possible

• Cardiac MRI and CT reports and images

• Oxygen saturation readings, and how they change with activity

• Growth records showing weight over time

• A current medicine list with doses

• Details of any syndrome or other medical condition

• Any record of rhythm problems or previous catheter interventions

The catheterisation figures are the ones a surgeon will look for first. Without them, no useful opinion on eligibility is possible.

6. How the Operation Is Done

Two established techniques, and the choice between them is the surgeon's judgement based on your child's anatomy.

Extracardiac conduit. A tube graft is used to carry blood from the lower body vein to the lung arteries, running outside the heart. Because it avoids stitching inside the heart's upper chambers, it is associated with fewer late rhythm problems. This is the more common approach now.

Lateral tunnel. A channel is constructed inside the right upper chamber to carry the same blood. Long-term survival is comparable, though rhythm problems appear somewhat more often, because of the stitch lines inside the chamber.

A fenestration. In children whose numbers sit at the margin, the surgeon may deliberately leave a small hole between the new pathway and the heart. It acts as a pressure release valve, which helps the early recovery at the cost of slightly lower oxygen levels. It can often be closed later through a catheter once the child has adapted.

Ask which technique is planned, whether a fenestration is intended, and if so what the plan is for closing it.

7. The Operation and the Days After

The operation itself commonly takes several hours. Your child then goes to a paediatric cardiac intensive care unit, usually still on a breathing machine, with lines and chest drains in place.

Expect the intensive care stay to be measured in days rather than hours, commonly around five to seven. The team will be watching pressures in the new pathway, fluid balance, and drainage from the chest.

Chest drains are standard after this operation and often stay in longer than parents expect. Fluid collecting around the lungs is the most common early problem, and drainage is how it is managed.

Ask in advance what you will see when you first go in, and who will speak to you each day.

8. Risks and Complications

This operation carries a higher complication burden than most children's heart surgery, and parents deserve that stated plainly rather than discovered later.

No percentages appear below. Figures vary by underlying defect, by pre-operative pressures, by technique and by how long children were followed, so a single number would mislead. Ask your unit for their own figures and the definitions behind them.

In the early weeks

Fluid collecting around the lungs is the commonest problem, sometimes persisting for weeks and needing prolonged drainage. A low-fat diet is often used to reduce it. Weakness of the muscle that helps breathing can occur if a nerve is affected during surgery, and occasionally needs treating.

Rhythm disturbances, bleeding and infection are all recognised. So is the possibility that the new circulation does not settle, which is the situation everyone is trying to avoid and the reason the pre-operative numbers matter so much.

Over the years

This is where the Fontan differs from a repair. A passive lung circulation puts pressure back through the veins for life, and several late problems follow from that.

Rhythm problems become more common through adolescence and adulthood. Liver changes from long-standing venous congestion are close to universal in long-term survivors, and need regular monitoring. A serious bowel condition involving protein loss affects a minority and is difficult to treat. Clots can form, which is why blood-thinning treatment is generally lifelong.

Development and learning are affected in some children, related to years of low oxygen levels and to the surgery itself, and formal developmental follow-up is recommended rather than optional.

9. This Is Palliation, Not Cure

If you take one thing from this page, take this. The Fontan does not create a normal heart and it is not a repair.

It substantially improves oxygen levels, allows better growth and development, and greatly extends life. It also leaves a circulation that is not normal and that tends to wear over decades.

A proportion of children who have a Fontan will need a heart transplant in adulthood, typically in their twenties, thirties or forties, as the circulation begins to fail. That is not a failure of the operation or of the surgeon. It is the known long arc of the condition.

Ask your team to explain what the realistic long view looks like for your child specifically. A unit that will not discuss this is not the right unit.

10. Recovery, Stage by Stage

Recovery from a Fontan runs longer than from most children's heart operations, and the part after discharge is where families get caught out.

Intensive care

Commonly around five to seven days. Breathing support initially, continuous monitoring, chest drains in place, and careful attention to fluid balance and lung pressures.

The ward

Drains come out as drainage settles, usually over the following days. Feeding is re-established, blood-thinning treatment is started and adjusted, and mobilisation begins with physiotherapy.

Total hospital stay is commonly around fourteen to twenty-one days, and longer where fluid drainage persists.

After discharge, still in the country

This is the part to plan for. Your child stays near the hospital for weeks, with outpatient reviews roughly every one to two weeks, checking oxygen levels, weight, wound healing, blood-thinning levels and whether fluid is reaccumulating.

An echocardiogram is usually repeated around four weeks.

Sternal precautions

Do not lift your child under the arms for roughly six to eight weeks while the breastbone knits. Lift from the bottom instead. Car seat and carrier arrangements are explained before discharge, and it is worth practising the technique before the operation.

Diet

A low-fat diet is commonly advised for a period afterwards, to reduce the chance of fluid reaccumulating around the lungs. Ask for specific written guidance rather than general advice, because it affects what you can feed a small child every day.

11. How Long You Will Be in the Country

Longer than almost any other children's heart operation. Published guidance for this procedure at partner centres indicates fourteen to twenty-one days in hospital, then a further four to seven weeks of outpatient monitoring.

Total time in the country is therefore commonly six to ten weeks. Short flights may sometimes be cleared around six weeks, and long-haul international flights are typically cleared at eight to ten weeks.

Clearance to fly is written and conditional. It depends on the new circulation being stable, oxygen levels at an acceptable level in room air, fluid collections resolved or minimal, the wound healed, blood-thinning treatment stable at target, and your child feeding and gaining weight.

Do not book a return flight around the discharge date. Discharge from hospital comes weeks before clearance to fly, and this is the single most common planning error families make with this operation.

12. Cost, and What It Excludes

Published figures put the Fontan procedure in India at roughly 8,000 to 15,000 US dollars, and in the UAE at roughly 20,000 to 35,000. Those are indicative published ranges checked in August 2026, not quotes, and they cover the core surgical hospitalisation.

Confirm any figure in writing with the hospital before you rely on it. Ask for it itemised, and ask specifically whether these sit inside it:

• Cardiac catheterisation, if performed as a separate admission on arrival

• Any catheter intervention before surgery, such as treating narrowed lung arteries

• Extended intensive care or prolonged chest drainage

• Later closure of a fenestration, if one is created

• Accommodation for the four to seven weeks after discharge

• A stay for both parents across the whole period

• Flights, and reviews after you return home

That accommodation line is the one families underestimate most. Six to ten weeks of housing for two adults is a substantial share of the total and is rarely inside a surgical package.

13. Follow-up Is Lifelong

Fontan follow-up does not taper off. It continues through childhood, adolescence and adult life, and it is how the late problems described in section 8 get caught early enough to manage.

Expect annual cardiology review at minimum, liver monitoring, rhythm monitoring, exercise assessment as your child grows, and periodic cardiac MRI. Adult congenital heart disease services take over in due course, and finding one near home is worth starting early.

Before you leave the country, collect the operation note, the discharge summary, all imaging, the blood-thinning plan with target levels, a medicine list with doses, and a written follow-up schedule stating what falls due when.

Ask whether the Indian unit will review echocardiograms and blood results sent from home, at what intervals, and how that is arranged. A Fontan child without a follow-up plan is the outcome to avoid.

14. Choosing a Team

For this operation the unit matters more than any individual surgeon. Weigh these:

• How many Fontan completions the unit performs each year

• How many Fontan patients they currently follow, which tells you about the long-term service

• Whether they handled the earlier stages themselves, or are taking on a child operated elsewhere

• Whether the intensive care is paediatric and cardiac, with overnight intensivist cover

• Availability of extracorporeal support

• Whether the catheterisation laboratory can close a fenestration later

• Access to a joint cardiology and surgery meeting

• Liver and rhythm monitoring arrangements for the long term

• Whether they will review scans and results sent from your home country

• Whether they discuss the long arc openly, including the possibility of transplant in adulthood

15. Questions to Ask Before You Consent

Ask for written answers, particularly if you are travelling.

• What were my child's pressure and resistance measurements, and are they inside the range you want?

• If they are borderline, what does that change about the risk?

• Extracardiac conduit or lateral tunnel, and why that one for my child?

• Do you plan a fenestration, and if so what is the plan for closing it later?

• How many days of intensive care and how long in hospital do you expect?

• How likely is prolonged chest drainage, and what happens if it persists?

• How many weeks before you would clear my child to fly home?

• What will the blood-thinning plan be, and how is it monitored from abroad?

• What diet restrictions will we go home with?

• What does the realistic long-term picture look like for my child?

• At what point would transplant be discussed?

• Will you review scans and blood results we send from home, and how often?

• What are the signs after discharge that mean we should seek help urgently?

• What happens, and who pays, if a complication develops while we are still in India?

16. Travelling With a Child From Abroad

Families come to us for this operation from the Middle East, Central Asia, South Asia and Africa. Given the length of stay, the visa and accommodation planning matters more here than for shorter procedures.

India's medical visa route allows for accompanying attendants, generally up to two, applied for alongside your child's visa with a hospital invitation letter and cost estimate. Some nationalities must apply in person at an embassy rather than online. A six to ten week stay may also need visa extension, so raise that at the application stage rather than later.

Country guides covering flights, visa documents and costs:

• Coming from Iraq

• Coming from Oman

• Coming from Bangladesh

• Coming from Turkmenistan

• Coming from Tanzania

• Coming from Kenya

• Coming from Zambia

• Coming from Zimbabwe

• Coming from Ghana

• Coming from South Sudan

17. Looking Wider

For children's heart conditions generally, including the earlier stages that precede a Fontan, see the full paediatric cardiology directory.

For the surgical pathway across other congenital defects, the general guide to children's heart surgery covers what an operation involves.

Medical Review

Medically reviewed by: Dr. Shabnam

Credentials: BDS 5 Years of experiences in medical content writing and reviewing

Last reviewed: July 2026

Prepared with reference to published paediatric cardiology guidance and peer-reviewed literature on single ventricle palliation and Fontan outcomes.

Content review: Abdul Azeem, MA (Public Health specialisation). Editorial review only, not clinical review.