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Health condition · Clinically reviewed

Ebstein's anomaly, cone reconstruction, arrhythmia care and lifelong ACHD follow-up.

A rare congenital defect of the tricuspid valve with an extraordinarily wide spectrum, from a very unwell newborn to an incidental adult echo finding. Modern UK care changes the story.

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A radiographer guides a patient onto the bed of an advanced 3 Tesla MRI scanner in a London imaging suite

Why trust this guide

  • 01

    Clinically reviewed

    Written by our editorial team and reviewed by a registered UK clinician before publication.

  • 02

    Sourced from guidance

    Checked against NHS specialised commissioning, ESC ACHD guidance and specialist congenital-cardiac sources.

  • 03

    Current for 2026

    Reflects modern UK practice including cone reconstruction, catheter ablation and lifelong ACHD follow-up.

Key facts

Ebstein's anomaly at a glance.

A quick orientation - what it is, how rare, the defects it travels with, and how UK specialist teams approach it.

  • What it is

    A rare congenital heart defect - the septal and posterior leaflets of the tricuspid valve are displaced downward, atrialising part of the right ventricle.

  • How rare

    Roughly one in every 20,000 live births - about 1% of all congenital heart disease.

  • Associated defects

    A patent foramen ovale or atrial septal defect in the majority, plus accessory pathways (WPW) in 20 to 30% of patients.

  • Spectrum

    Extremely variable - from severe cyanotic newborn presentation to incidental adult detection.

  • Cornerstone repair

    Cone reconstruction (da Silva) reshapes the native valve and is the preferred surgical option in specialist UK centres.

  • Lifelong care

    Every patient needs ACHD follow-up in a specialist commissioned centre - Great Ormond Street, Birmingham, Southampton, Bristol, Leeds, Newcastle or Glasgow.

Why this guide matters

One condition, many faces.

The severity spectrum in Ebstein's anomaly is unusually wide. The three ideas below shape everything else on this page.

  • The spectrum is enormous

    From a cyanotic newborn needing intensive care to an adult picked up on an incidental echo - one label, very different journeys.

  • Rhythm is central

    Accessory pathways, SVT and atrial fibrillation drive a lot of the day-to-day experience - and modern EP care changes it.

  • Cone repair is transformative

    The da Silva cone reconstruction preserves the native valve and, in specialist hands, offers durable and elegant results.

How the diagnosis is made

From first suspicion to a specialist plan.

The steps a UK team will normally follow - fetal, neonatal or adult - so you know what each test is looking at and why.

  1. 01

    Detecting

    Fetal echocardiography

    Many cases are picked up antenatally - a specialist fetal echo maps leaflet displacement and right heart function.

  2. 02

    Detecting

    Newborn assessment

    Cyanosis, tachypnoea and a tricuspid regurgitation murmur trigger urgent postnatal echo and neonatal cardiology review.

  3. 03

    Detecting

    ECG

    Right bundle branch block, tall Himalayan P waves and, in some, a short PR interval with a delta wave suggesting an accessory pathway.

  4. 04

    Confirming

    Transthoracic echocardiogram

    The gold standard - Carpentier grading (A to D) and the Celermajer index quantify severity and guide timing of intervention.

  5. 05

    Confirming

    Cardiac MRI

    Precise right ventricular volumes and function - essential for surgical planning and adult follow-up.

  6. 06

    Confirming

    Ambulatory rhythm monitoring

    A Holter or event monitor to catch supraventricular tachycardia, atrial fibrillation or accessory-pathway arrhythmia.

  7. 07

    Planning

    MDT in a specialist centre

    Paediatric cardiology, adult congenital heart disease and congenital surgery agree the plan in a UK commissioned unit.

Typical timeline: from a scan finding to an MDT plan in weeks, not months.

Symptoms

What Ebstein's anomaly can look like.

The features change with age and severity. Below are the common patterns, and the situations that always need urgent review.

  • Neonatal cyanosis

    A blue newborn with tachypnoea, poor feeding and heart failure - a severe presentation needing urgent tertiary transfer.

  • Tricuspid regurgitation murmur

    A soft pansystolic murmur at the lower left sternal edge - often the first physical clue.

  • Exercise intolerance

    Children and adolescents may tire quickly, breathless on climbing stairs or during PE - early right heart limitation.

  • Palpitations and SVT

    Sudden fast heart rhythms driven by an accessory pathway - a common way older children and adults come to attention.

  • Atrial fibrillation and flutter

    The stretched right atrium is a substrate for AF and flutter, particularly in adulthood.

  • Fatigue and dyspnoea

    Adults describe chronic tiredness and breathlessness as right heart function slowly declines.

  • Paradoxical embolism

    A clot crossing a PFO can cause stroke or TIA in a young adult with no other risk factors.

  • Red flag - collapse or severe cyanosis

    Syncope, sustained fast rhythms or worsening cyanosis need emergency cardiology assessment.

Treatment

How Ebstein's anomaly is treated in the UK.

Care runs on several tracks at once - monitoring, medication, rhythm and, when needed, surgery. Every option sits inside a specialist MDT.

  • Observation and ACHD follow-up

    For mild, asymptomatic disease - lifelong review with serial echocardiography in a specialist adult congenital heart disease clinic.

  • Heart-failure medication

    Diuretics, ACE inhibitors and beta-blockers ease symptoms when right heart function is impaired.

  • Antiarrhythmic drugs

    Flecainide, amiodarone or sotalol control supraventricular tachycardia and atrial fibrillation.

  • Catheter ablation

    Electrophysiology ablation of accessory pathways or atrial tachycardia - technically demanding, done in specialist EP centres.

  • Cone reconstruction

    The da Silva cone repair reshapes the native tricuspid valve into a cone - the preferred surgery in UK congenital centres.

  • Tricuspid valve replacement

    A bioprosthetic replacement is reserved for valves that cannot be repaired - a considered, selective choice.

  • Atrial septal closure

    Device closure of a PFO or ASD, often combined with rhythm or valve work.

  • Maze procedure and pacemaker

    Surgical maze for atrial fibrillation and pacing for bradycardia or heart block after surgery.

What this guide is based on

The sources behind every claim on this page.

UK specialist commissioning standards and international ACHD guidance, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your ACHD or paediatric cardiology team knows your anatomy and history and can tell you which parts apply to you. If in doubt, get seen.

  • European Society of Cardiology. 2020 Guidelines for the management of adult congenital heart disease.

  • NHS England. Specialised commissioning for congenital heart disease services.

  • British Congenital Cardiac Association. Standards for congenital heart disease services.

  • British Heart Foundation. Information on Ebstein’s anomaly and congenital heart disease.

  • Somerville Foundation and Little Hearts Matter. UK patient support resources.

Red flags

When Ebstein's anomaly needs urgent attention.

Most concerns are managed in planned specialist follow-up. These are the situations that cannot wait.

  • Severe neonatal cyanosis

    A profoundly blue newborn with heart failure needs immediate transfer to a specialist congenital cardiac unit.

  • Sustained supraventricular tachycardia

    A very fast, sustained rhythm needs urgent assessment - accessory pathways in Ebstein’s can drive dangerous SVT.

  • New atrial fibrillation

    AF in a patient with Ebstein’s changes stroke risk and rhythm strategy - specialist review is needed.

  • Paradoxical stroke or TIA

    A young adult stroke with no clear cause raises the possibility of clot crossing a PFO - screen the heart.

  • Syncope on exertion

    Fainting during exercise can signal a serious arrhythmia - stop and seek same-day cardiology input.

  • Worsening right heart failure

    Rising leg swelling, ascites and breathlessness need urgent review - medical and surgical options exist.

  • Pregnancy planning

    Pregnancy is often well tolerated but must be planned in a specialist maternal cardiology clinic.

  • Delta wave on routine ECG

    A short PR with a delta wave points to an accessory pathway - refer for electrophysiology assessment.

  • Family planning and genetics

    Recurrence risk is small but real - a genetics conversation is offered before pregnancy.

Living with it

A lifelong condition, with a specialist team beside you.

Four things that make the biggest difference over years - a linked team, a rhythm plan, tailored exercise and community support.

A quiet reminder

Continuity of care is the real intervention.

A stable relationship with a specialist ACHD service, kept up for decades, tends to outperform any single procedure.

  1. 01 Team

    Stay linked to your specialist centre

    Lifelong ACHD follow-up in a commissioned UK unit is the single most important thing - book the next review before you leave.

  2. 02 Rhythm

    Know your arrhythmia plan

    Learn which rhythms to expect, what your medications do and when to call - a written plan helps in a crisis.

  3. 03 Movement

    Exercise, tailored to you

    Most people can and should be active - your ACHD team will personalise what is safe based on your anatomy and rhythm.

  4. 04 Support

    Lean on the community

    Somerville Foundation, Little Hearts Matter and the British Heart Foundation offer information, peer support and advocacy.

Frequently asked

Everything we get asked about Ebstein's anomaly.

Quick answers on diagnosis, cone reconstruction, arrhythmia care, pregnancy and specialist UK centres.

  • What is Ebstein’s anomaly?

    A rare congenital heart defect in which the septal and posterior leaflets of the tricuspid valve are displaced downward into the right ventricle, atrialising part of that chamber. This causes tricuspid regurgitation and, over time, right heart failure. It affects roughly one in every 20,000 live births.

  • How is it detected?

    Many cases are picked up on fetal echocardiography. After birth or later in life, echocardiography is the gold-standard test - it maps leaflet displacement, quantifies regurgitation and grades severity. Cardiac MRI, ECG and ambulatory rhythm monitoring add detail on right ventricular function and arrhythmia.

  • What is cone reconstruction?

    The da Silva cone repair is a specialist congenital cardiac operation that reshapes the patient’s own tricuspid leaflets into a cone and reattaches them at the correct level. It preserves the native valve, offers durable results and is the preferred approach in UK specialist centres when surgery is needed.

  • Will I need surgery?

    Not everyone. Many people with mild Ebstein’s live full lives on observation alone. Surgery is offered when there is significant tricuspid regurgitation, worsening right heart function, cyanosis, difficult arrhythmia or exercise limitation. The MDT will discuss timing carefully.

  • Can I have children?

    For most women with Ebstein’s, pregnancy is well tolerated with the right preparation. Planning starts before conception in a specialist maternal cardiology clinic with joint obstetric and ACHD care. Recurrence risk in the baby is small but should be discussed.

  • Where in the UK is this treated?

    Congenital cardiac surgery for Ebstein’s is delivered in NHS-commissioned specialist centres, including Great Ormond Street, Birmingham Children’s, Southampton, Bristol, Leeds, Newcastle and Glasgow. Lifelong follow-up sits with a linked adult congenital heart disease service.

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