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Coronary angioplasty overview
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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
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.
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
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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.
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 9, 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.
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.
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.