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Health condition · Clinically reviewed

Heart disease, from prevention to the four-pillar plan and beyond.

The UK's biggest killer is also its most treatable. A stepped, MDT-led approach - prevention, precise diagnosis, modern therapy - changes outcomes.

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Why trust this guide

  • 01

    Clinically reviewed

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

  • 02

    Sourced from guidance

    Checked against NICE, ESC, BHF and specialist commissioned UK cardiology standards you can see at the end.

  • 03

    Current for 2026

    Reflects modern UK cardiology including four-pillar HFrEF therapy, coronary CT angiography and inherited cardiac conditions services.

Key facts

Heart disease at a glance.

The essentials, in plain English - what it covers, the main types and how it is treated in the UK today.

  • What it is

    An umbrella term for every disease of the heart and its vessels - coronary, valvular, muscle, rhythm, pericardial, congenital and vascular.

  • Coronary artery disease

    Atherosclerotic narrowing of the coronary arteries and the leading cause of death in the UK - causing angina, myocardial infarction and heart failure.

  • Heart failure

    Reduced (HFrEF) or preserved (HFpEF) ejection fraction - four-pillar therapy has transformed HFrEF prognosis.

  • Valve disease

    Aortic stenosis, mitral regurgitation and tricuspid disease - increasingly treated by TAVI, MitraClip and repair.

  • Cardiomyopathy

    Dilated, hypertrophic, restrictive, ARVC, amyloid and peripartum - many with an inherited basis.

  • Prevention

    Stopping smoking, BP control, lipid lowering, diabetes care, weight and exercise - and, in high-risk patients, colchicine.

Why this guide matters

A modern map of the whole cardiac landscape.

Heart disease is not one condition but a family - each with its own path and, increasingly, its own transformative treatment.

  • Prevention still leads

    Stopping smoking, controlling BP and lipids, treating diabetes and moving daily prevents most premature cardiac deaths - see our prevention guide (/conditions/coronary-disease-prevention/).

  • Diagnosis has been transformed

    Coronary CT angiography (/treatments/coronary-ct-angiography/), cardiac MRI and implantable loop recorders find disease earlier and more precisely than ever.

  • Modern therapy changes outcomes

    Four-pillar HFrEF therapy, TAVI (/treatments/tavr-tavi-clinic/), catheter ablation (/treatments/catheter-ablation-electrophysiology/) and inherited cardiac conditions clinics are all reshaping prognosis.

How the diagnosis is made

From first symptom to a clear cardiac plan.

The steps a UK cardiologist will normally follow, in order - history, examination, ECG, bloods, imaging, rhythm monitoring and MDT.

  1. 01

    Assessing

    Full cardiac history

    Chest pain character, breathlessness, palpitations, syncope, exercise tolerance and every cardiovascular risk factor - including a careful family history for inherited disease.

  2. 02

    Assessing

    Focused examination

    Blood pressure in both arms, pulses, JVP, apex beat, heart sounds and auscultation for murmurs, gallops or rubs.

  3. 03

    Assessing

    Baseline ECG

    A 12-lead ECG is the first-line test - screening for ischaemia, hypertrophy, conduction disease and inherited channelopathies.

  4. 04

    Confirming

    Blood tests

    Troponin for suspected infarction, BNP or NT-proBNP for heart failure, lipids, HbA1c, renal function and specialist markers where indicated.

  5. 05

    Confirming

    Imaging - echo and beyond

    Transthoracic echocardiogram is the workhorse - cardiac MRI, coronary CT angiography and specialist imaging follow when needed.

  6. 06

    Deciding

    Rhythm monitoring

    Holter, event recorders or implantable loop recorders capture intermittent arrhythmias that a resting ECG misses.

  7. 07

    Deciding

    Specialist and MDT referral

    Interventional cardiology, electrophysiology, heart failure, inherited cardiac conditions or cardiothoracic surgery - as the picture demands.

Typical timeline: from first consultation to a full cardiac plan in weeks, sometimes days if urgent.

Symptoms

What heart disease actually feels like.

Chest pain, breathlessness, palpitations, syncope and swelling - and the features that mean it is time to escalate to 999 or an emergency echo.

  • Chest pain and angina

    Central, tight, exertional pain radiating to jaw or arm - the classic story of coronary artery disease.

  • Breathlessness

    On exertion or lying flat (orthopnoea) - a red flag for heart failure or significant valve disease.

  • Palpitations

    Awareness of fast, slow or irregular heartbeats - the presenting feature of most arrhythmias.

  • Syncope or near-syncope

    Blackouts, especially on exertion or without warning - always needs a cardiac assessment.

  • Peripheral oedema and fatigue

    Ankle swelling, weight gain and profound tiredness - the everyday face of chronic heart failure.

  • Murmurs and abnormal sounds

    A new murmur, gallop or rub often signals valvular, myocardial or pericardial disease.

  • Cyanosis or clubbing

    Blue-tinged lips and clubbed fingers point to long-standing congenital or pulmonary vascular disease.

  • Red flag - acute severe chest pain

    Crushing chest pain, tearing back pain or sudden collapse means dial 999 - infarction, dissection or arrest until proven otherwise.

Treatment

How heart disease is treated in the UK.

Prevention first, medical therapy next, then coronary, valve, rhythm and advanced interventions - all delivered through cardiology, electrophysiology, cardiothoracic surgery and inherited cardiac conditions MDTs.

  • Risk-factor modification

    Stopping smoking, blood pressure control, statins, diabetes care and cardiac rehabilitation - the foundation of every plan. See our prevention guide (/conditions/coronary-disease-prevention/).

  • Antiplatelets and lipids

    Aspirin, clopidogrel or ticagrelor after acute events, plus statins and, where needed, ezetimibe or PCSK9 inhibitors.

  • Coronary intervention

    Coronary angiography with angioplasty and stenting (/treatments/coronary-angioplasty/) or bypass surgery for anatomically severe disease.

  • Four-pillar heart failure

    ACE inhibitor or ARNI, beta blocker, MRA and SGLT2 inhibitor - the modern backbone of HFrEF care. See heart failure (/conditions/heart-failure/).

  • Valve intervention

    TAVI and TAVR (/treatments/tavr-tavi-clinic/), MitraClip, surgical repair or replacement for aortic stenosis, mitral and tricuspid disease.

  • Rhythm management

    Catheter ablation (/treatments/catheter-ablation-electrophysiology/), pacemakers, ICDs and subcutaneous ICDs (/treatments/subcutaneous-icd/) for arrhythmias.

  • Cardiac rehabilitation

    Structured exercise, education and psychological support (/treatments/cardiac-rehabilitation-programme/) after every major cardiac event.

  • Advanced and specialist

    Cardiac transplantation, mechanical support, genetic counselling and inherited cardiac conditions clinics through specialist commissioned UK services.

What this guide is based on

The sources behind every claim on this page.

UK national guidance, European Society of Cardiology standards and specialist commissioned UK cardiology services - 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 GP or cardiologist knows your history and can tell you which parts apply to you. If in doubt - especially with chest pain, collapse or new breathlessness - get seen.

  • NICE. Cardiovascular disease: risk assessment and reduction (NG238).

  • NICE. Chronic heart failure in adults (NG106) and acute heart failure (CG187).

  • European Society of Cardiology (ESC). Guidelines on heart failure, coronary syndromes, valvular disease and cardiomyopathies.

  • British Heart Foundation (BHF). Patient information and clinical statistics.

  • Cardiomyopathy UK. Patient guidance on inherited cardiac conditions.

  • MHRA and specialist commissioned UK cardiology services for inherited cardiac conditions.

Red flags

When heart disease needs urgent attention.

Most cardiac disease is managed as outpatients. These are the situations that are not - and where 999 or same-day specialist review is essential.

  • Acute chest pain

    Central, crushing pain lasting more than 15 minutes, especially with sweating, nausea or breathlessness - dial 999 for suspected myocardial infarction.

  • Tearing back or chest pain

    Sudden, tearing pain radiating to the back can mean aortic dissection - a surgical emergency.

  • Sudden collapse or cardiac arrest

    Unresponsive and not breathing normally - start CPR, call 999 and use an AED if one is available.

  • New severe breathlessness

    Acute pulmonary oedema, massive pulmonary embolism or tamponade all present this way - needs same-day assessment.

  • Syncope on exertion

    Blacking out during exercise can signal severe aortic stenosis, hypertrophic cardiomyopathy or a dangerous arrhythmia.

  • Family history of sudden death

    A first-degree relative dying suddenly under 40 is a strong indication for inherited cardiac conditions screening.

  • New murmur with fever

    Suspect infective endocarditis (/conditions/endocarditis/) - blood cultures and urgent echo are needed.

  • Cyanotic congenital heart disease

    Adults with uncorrected congenital disease - including Eisenmenger syndrome (/conditions/eisenmenger-syndrome/) - need specialist ACHD input.

  • Peripartum breathlessness

    New heart failure in the last month of pregnancy or first five months post-partum - suspect peripartum cardiomyopathy.

Living with it

A treatable condition, with a clear plan.

Four things that make the biggest difference day to day - own your risk factors, know your numbers, take your medicines and do the rehab.

A quiet reminder

Consistency beats intensity, every time.

Small, steady habits kept up for years do more for your heart than a heroic month that does not last.

  1. 01 Prevent

    Own your risk factors

    Stop smoking, keep blood pressure and cholesterol on target, move most days and eat a Mediterranean-style diet - the single biggest lever you have.

  2. 02 Monitor

    Know your numbers

    BP, resting heart rate, weight and how far you can walk without breathlessness - track changes and act early.

  3. 03 Adhere

    Take your medicines

    Modern cardiac medicines only work if taken every day - four-pillar therapy, statins and antiplatelets are life-saving when used consistently.

  4. 04 Rehab

    Do the rehab

    Cardiac rehabilitation after an event or diagnosis lowers mortality and improves quality of life - it is not optional.

Frequently asked

Everything we get asked about heart disease.

Quick answers on coronary disease, heart failure, murmurs, inherited cardiac conditions and prevention.

  • What counts as heart disease?

    It is an umbrella term covering every disorder of the heart and blood vessels - coronary artery disease, heart failure, valve disease, cardiomyopathies, arrhythmias, congenital heart disease, hypertension, pericardial disease, endocarditis and vascular conditions including aortic dissection, aneurysm and peripheral arterial disease. Each has its own diagnostic pathway and treatment, but they share risk factors and often coexist.

  • What is the most common form of heart disease in the UK?

    Coronary artery disease (/conditions/coronary-artery-disease/) is the single biggest killer in the UK. It develops when atherosclerotic plaque narrows the coronary arteries, causing angina, myocardial infarction and, over time, heart failure and arrhythmias.

  • How is heart failure treated today?

    Modern HFrEF care is built on four pillars - an ACE inhibitor or ARNI, a beta blocker, a mineralocorticoid receptor antagonist and an SGLT2 inhibitor. Started together and titrated over weeks, they cut mortality and hospital admissions. HFpEF is treated with SGLT2 inhibitors, diuretics for congestion and aggressive management of hypertension, atrial fibrillation and obesity.

  • When should I worry about a heart murmur?

    A new murmur - especially with breathlessness, chest pain, fever or exertional symptoms - always deserves an echocardiogram. See our guide (/conditions/heart-murmurs/). Innocent flow murmurs are common in children and pregnancy, but any adult murmur that was not there before needs assessment.

  • What is inherited cardiac disease?

    A group of genetic conditions - hypertrophic cardiomyopathy (/conditions/hypertrophic-cardiomyopathy/), dilated cardiomyopathy, ARVC, long QT and Brugada syndrome, familial hypercholesterolaemia and inherited aortopathies. Diagnosis needs a family history, ECG, echo, cardiac MRI and often genetic testing through specialist commissioned inherited cardiac conditions clinics.

  • How can I lower my risk of heart disease?

    The most effective steps are stopping smoking, keeping blood pressure below 140/90 (lower if diabetic or high-risk), lowering LDL cholesterol with lifestyle and statins where indicated, controlling diabetes, keeping a healthy weight, exercising 150 minutes a week and following a Mediterranean-style diet. In high-risk patients, colchicine (based on the LoDoCo2 trial) is emerging as an anti-inflammatory add-on.

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