Coronary angioplasty overview
Informed by recognized medical guidance
Overview
Coronary angioplasty (also called percutaneous coronary intervention or PCI) is a procedure to open up blocked or narrowed arteries in the heart. A thin tube with a small balloon on the end is guided into the artery, then the balloon is inflated to squash the blockage and restore blood flow. Often a tiny mesh tube called a stent is left in place to keep the artery open.
Key facts
- It is a minimally invasive procedure — no large cuts, just a small puncture in the groin or wrist.
- Most people stay in hospital for 1–2 nights after the procedure.
- It can quickly relieve symptoms like chest pain and reduce the risk of a heart attack.
Yes, coronary angioplasty is a very common procedure. Thousands of people in the UK have it every year to treat coronary artery disease.
It is usually performed on people who have coronary artery disease, which is narrowing of the heart arteries due to a build-up of fatty deposits. This condition most often affects adults over 50, but can occur in younger people with risk factors such as smoking, high blood pressure, or diabetes.
Symptoms
- Chest pain or discomfort that lasts more than a few minutes or goes away and comes back.
- Pain or discomfort in one or both arms, the back, neck, jaw, or stomach.
- Shortness of breath with or without chest discomfort.
- Breaking out in a cold sweat, nausea, or lightheadedness.
- ⚠New or worsening chest pain that is triggered by less activity or occurs at rest.
- ⚠Chest pain that does not go away with rest or after taking prescribed medication (if you have any).
Common symptoms
- Chest pain or discomfort (angina) – often described as pressure, squeezing, or tightness in the chest.
- Shortness of breath, especially during activity or emotional stress.
- Pain in the arms, neck, jaw, back, or stomach (sometimes mistaken for indigestion).
Symptoms in children
- Coronary angioplasty is very rarely needed in children. When it is used, it may be for congenital heart defects or Kawasaki disease. Symptoms in children can include chest pain, fainting, or poor feeding.
Symptoms in older adults
- Older adults may experience the same symptoms as others, but sometimes the warning signs are less typical, such as feeling weak, dizzy, or short of breath without clear chest pain.
Causes
Main causes
- Coronary angioplasty is not a disease itself — it is a treatment for coronary artery disease. The cause of the blockages is atherosclerosis: the gradual build-up of fatty plaques inside the artery walls.
Risk factors
- High cholesterol
- High blood pressure
- Smoking
- Diabetes
- Being overweight or obese
- Lack of physical activity
- Unhealthy diet high in saturated fat and salt
- Family history of heart disease
- Older age
When to see a doctor
See a doctor urgently if:
- Any chest pain that is new, severe, or doesn't go away — call your local emergency number immediately.
- If you have known angina and your symptoms become more frequent, worse, or happen at rest, see a doctor urgently.
Book a routine appointment if:
- If you have chest discomfort, shortness of breath, or other possible heart symptoms that are mild and not getting worse, make an appointment with your GP to discuss them.
- If you have high blood pressure, high cholesterol, or diabetes and are not sure if your heart is healthy, ask your GP for a check-up.
Diagnosis
Coronary angioplasty is a treatment, not a diagnosis. The decision to perform angioplasty is made after diagnosing coronary artery disease. Doctors use a combination of your symptoms, medical history, and tests to see if there are blockages in your heart arteries.
Tests that may be done
- Electrocardiogram (ECG) – records the electrical activity of your heart.
- Blood tests – to check for heart muscle damage and cholesterol levels.
- Stress test – exercise or medication to see how your heart works under strain.
- Coronary angiogram – a special X-ray that shows blockages in the arteries. This is often done right before angioplasty.
What to expect at your appointment
If your doctor suspects coronary artery disease, they will refer you to a heart specialist (cardiologist). After reviewing your tests, the cardiologist may recommend an angiogram. During the angiogram, a thin tube is inserted into an artery in your wrist or groin, and dye is injected to see the blockages. If a blockage is found that can be treated, the doctor may perform angioplasty immediately.
Treatment
Coronary angioplasty is a treatment to open blocked heart arteries. It is often done as an emergency for heart attacks, or as a planned procedure for people with stable angina. The goal is to improve blood flow to the heart muscle, relieve symptoms, and lower the risk of a heart attack.
Self-care at home
- Adopt a heart-healthy diet – low in saturated fat, salt, and sugar, and rich in fruits, vegetables, and whole grains.
- Get regular physical activity – aim for at least 150 minutes of moderate exercise per week, as advised by your doctor.
- Stop smoking – your GP or local health service can help with quitting.
- Keep your weight in a healthy range.
Medical treatments
After angioplasty, you will be prescribed medications to prevent blood clots and manage risk factors such as high cholesterol and high blood pressure. These may include anti-clotting medicines (like aspirin and another blood thinner), statins to lower cholesterol, and medications to control blood pressure. It is important to take them exactly as prescribed. Your doctor will also recommend lifestyle changes.
When is surgery considered?
Coronary angioplasty is the most common procedure for blocked arteries. However, if the blockages are very extensive or in certain locations, your doctor may recommend coronary artery bypass graft (CABG) surgery instead. This is open-heart surgery that uses blood vessels from other parts of your body to create a detour around the blockages. Your cardiologist and a heart surgeon will discuss which option is best for you.
Living with this condition
After angioplasty, most people feel better quickly. You can usually return to normal activities within a week or two, but your doctor will give you specific guidance. You may need to avoid heavy lifting and strenuous activity for a short time. It is important to attend follow-up appointments and take your medications as directed.
Lifestyle tips
- Eat a heart-healthy diet and stay physically active.
- Manage stress through relaxation techniques, hobbies, or talking to someone you trust.
- Avoid smoking and limit alcohol.
- Monitor your blood pressure and cholesterol regularly.
Diet and exercise
A diet rich in fruits, vegetables, whole grains, lean protein, and healthy fats (like olive oil) supports heart health. Limit foods high in saturated fat, salt, and added sugar. For exercise, start slowly – walking is a great choice. Gradually increase to 30 minutes of moderate activity most days. Always check with your doctor before starting a new exercise plan.
Mental health and emotional wellbeing
Having a heart procedure can be frightening. It is normal to feel anxious or down afterwards. Talk to your doctor if these feelings last. Many people find it helpful to join a cardiac rehabilitation program, which provides support from health professionals and groups of others with similar experiences.
Prevention
You cannot always prevent coronary artery disease, but you can greatly lower your risk by adopting a healthy lifestyle. That means not smoking, eating well, staying active, managing stress, and keeping conditions like high blood pressure and diabetes under control.
Vaccines
Vaccines do not prevent coronary artery disease directly. However, getting the annual flu vaccine and other recommended vaccines can help prevent infections that might stress your heart.
Screening programmes
Regular health checks for blood pressure, cholesterol, and blood sugar can detect problems early. If you have a family history of heart disease, talk to your GP about when to start screening.
Complications
If left untreated
- If coronary artery disease is not treated, the blockages can worsen and lead to a heart attack.
- It can also cause heart failure (where the heart cannot pump blood well enough to meet the body's needs) or abnormal heart rhythms.
Long-term outlook
The outlook after coronary angioplasty is very good. Most people have immediate relief from symptoms and a lower risk of future heart attacks. Combined with a healthy lifestyle and medications, angioplasty can help you live a full and active life for many years.
Find support
International organisations
External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.
Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 16, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Guidance may differ by country or region. Confirm local recommendations with a qualified healthcare provider.