Transitioning from Pediatric to Adult Congenital Heart Care: What to Expect

Somewhere between age 18 and 25, most people with congenital heart disease experience a transition that should be one of the most carefully managed handoffs in medicine.

In practice, it's often one of the least.

The move from pediatric to adult congenital heart care — from the cardiologist who has known you since infancy to the adult system that's supposed to receive you — is a fragile moment. The research on what happens here is sobering: a significant percentage of young adults with CHD lose contact with cardiac care entirely during this transition. They fall through the gap between two systems that weren't built to talk to each other, and they don't reappear until something goes wrong.

That's the problem. And more importantly — how to close it.

Why the Gap Exists

The problem isn't pediatric cardiology. It's what happens after.

Pediatric cardiologists follow CHD patients from infancy through early adulthood with longitudinal knowledge that no adult cardiologist can replicate from a single intake visit. At some point — driven by age, institutional policy, or the maturation of the care relationship — there needs to be a handoff.

The adult side of that handoff hasn't always been ready. ACHD is a young subspecialty. Even now, the number of board-certified ACHD physicians in the United States is far smaller than the population that needs them. Outside of major academic medical centers, a dedicated adult congenital cardiology clinic is not always available. General cardiologists absorb the overflow — and while many of them provide good general cardiac care, they weren't trained for the specific anatomy and long-term trajectories these patients carry.

The result is a structural gap. Patients graduate from pediatric care into an adult system that may not have a clear place for them. Many end up with no cardiologist at all.

What's at Stake

Transition-age patients — roughly ages 16 to 25 — are at elevated risk for specific complications that can be missed if no specialist is watching.

This is the period when:

• Arrhythmias often emerge for the first time. Atrial flutter and fibrillation are significantly more common in adults with CHD than in the general population, and the risk increases with age. Young adulthood is often when the first episodes appear — and in a heart with abnormal anatomy, atrial fibrillation isn't just a nuisance; it can be hemodynamically destabilizing.

• Valve function changes. Repaired valves don't last forever. The pulmonary valve replaced in a Tetralogy of Fallot repair in infancy may last 15-20 years before becoming significantly dysfunctional. Monitoring for the right window to intervene — before the right ventricle is irreversibly damaged — requires consistent surveillance.

• Right ventricular function can quietly decline. In many forms of complex CHD, the right ventricle carries more load than it was designed for. Decline can be slow and asymptomatic until it becomes a crisis. Serial imaging over years is how you catch this early.

• Psychosocial challenges affect medical adherence. College, independence, new relationships, career demands — the transition period is when the habits around managing a chronic condition either get established or don't. Patients who lose track of cardiac care in their twenties often don't reconnect until their thirties or forties, sometimes after a significant event.

None of this is inevitable. With the right care, most of it is preventable or manageable. But it requires someone to be watching.

What a Good Transition Actually Looks Like

The best transitions are planned years before they happen. Transition preparation should begin around age 14 or 15, with the pediatric cardiologist gradually shifting responsibility to the patient — teaching them their own diagnosis, their surgical history, their medications, and why each follow-up matters.

By the time a young adult leaves pediatric care, they should be able to answer these questions:

1. What is my specific diagnosis? (Not just "I have a heart problem" — what is the anatomy?)
2. What surgeries or procedures have I had, and approximately when?
3. What medications am I on and why?
4. What are my restrictions, if any?
5. Who is my adult cardiologist going to be, and when is my first appointment?

That last one is the linchpin. The transition shouldn't end with "you should see an adult cardiologist someday." It should end with a name, a referral, and a scheduled appointment.

The pediatric cardiologist should provide a detailed transition summary — a document that captures the anatomy, surgical history, imaging history, current management plan, and reason for any ongoing surveillance. This document is the map for the adult cardiologist who receives the patient. Without it, the adult care team is starting from scratch.

For Patients Who've Already Fallen Through the Gap

Adults with known CHD who haven't seen a cardiologist in five, ten, sometimes twenty years are not rare. Most ACHD practices see this constantly. If this is you, coming back into care is straightforward. There is no administrative barrier, no penalty for the gap. We need to understand where your heart is right now and what it needs going forward.

What helps:

• Any records from your pediatric cardiologist, if you can access them
• Knowledge of your specific diagnosis and any surgeries, even if the details are fuzzy
• A current list of medications, if you're taking any

What isn't required:

• A perfect medical history
• A referral from another physician (for most consultations)
• Prior cardiac imaging (we can obtain what's needed)

If you've been told in the past that your condition was "mild" or "fixed" and therefore didn't need follow-up — that deserves a second opinion. Many conditions labeled mild in childhood can become clinically significant in adulthood. "Fixed" in pediatric cardiology means the acute problem was addressed. It doesn't mean the monitoring is done.

For Parents of Adolescents with CHD

The transition conversation is often harder for parents than it is for patients. You've been a central part of managing this diagnosis for your child's entire life. Handing that over — first to your teenager, then to an adult care team — is a significant shift.

The most useful things you can do:

Encourage ownership early. From around age 12 or 13, start having your child present their own history to the cardiologist in the room. Let them answer questions first. The goal is an adult who knows their own anatomy and takes it seriously.

Keep records. Maintain a file with surgical notes, catheterization reports, echocardiogram summaries, and discharge documentation. If records ever become fragmented across healthcare systems, this file is invaluable.

Ask about the transition plan directly. At a pediatric cardiology visit before age 17 or 18, ask specifically: what is the handoff plan? Where should my child go for adult care? Can you provide a referral?

Understand that the relationship with the adult cardiologist will be different — and that's appropriate. Adult ACHD care is a partnership with the patient, not a relationship brokered through parents. The goal is an adult who is engaged and informed about their own health — not one who relies on parents to manage it for them.

Transition Care at Congenital Heart Compass

Congenital Heart Compass Medical PLLC accepts transition-age patients from pediatric practices across the Western New York region. We work directly with referring pediatric cardiologists to ensure continuity — reviewing transition summaries, understanding the surgical history, and building an adult care plan that picks up where pediatric care left off.

For patients who come to us after years out of the system, we start with a complete ACHD evaluation: current anatomy review, functional assessment, rhythm evaluation, and a structured surveillance plan going forward.

The transition from pediatric to adult care should be a handoff — not a freefall. Building that handoff well is part of the work.

Schedule a transition consultation directly — no referral is required for most consultations; check with your insurance plan for specific requirements — or ask your pediatric cardiologist to send records ahead of the visit.

Dr. Pradeepkumar Charla, MD, MBA sees transition-age and young adult patients with congenital heart disease at Congenital Heart Compass Medical PLLC in Rochester, NY. Referrals from pediatric cardiologists are welcome and telemedicine is available across New York State.

Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare professional regarding your specific condition.