What is PCI?
PCI stands for percutaneous coronary intervention. The coronary arteries supply blood to your heart muscle. A small balloon widens a narrowing; usually a fine metal mesh tube, called a stent, is left in place to support the artery. Most modern stents release medicine to reduce the chance of re-narrowing.
Who may benefit?
For stable angina, the main aim is to reduce chest discomfort and help with everyday activity when medicines are not controlling symptoms well enough. A planned stent should not be assumed to prevent future heart attacks or extend life for everyone.
During some heart attacks, urgent PCI opens the blocked artery to restore blood flow and limit heart damage. This is a different situation from planned treatment for stable symptoms.
An angiogram, sometimes with measurements of blood flow or imaging inside the artery, helps establish whether PCI is appropriate.
What happens during treatment?
- Beforehand: your team reviews your medicines, allergies, kidney function and test results. Follow the hospital’s instructions about eating, drinking and medicines.
- During PCI: local anaesthetic numbs the wrist or groin. You are usually awake; sedation may help you relax. X-rays and contrast dye guide a thin tube to the heart artery.
- Opening the artery: a balloon and usually a stent treat the narrowing. PCI can follow the angiogram immediately or be arranged separately.
Recovery & medicines
After uncomplicated planned PCI, many people go home that day or the next. Bruising or tenderness at the entry site is common. Return to work and normal activities may be possible after about a week, depending on your job and recovery. After a heart attack, recovery can take much longer.
Do not stop prescribed antiplatelet medicines without your treating team’s advice. These help prevent a clot inside the stent. Your plan may include aspirin with another tablet. Check with the team before dental work or another procedure, and seek advice if you have bleeding or cannot take a dose.
Cardiac rehabilitation, cholesterol and blood-pressure treatment, smoking cessation and regular activity remain important. Ask for individual advice on driving, lifting and exercise before discharge.
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Risks & alternatives
Risks include bleeding, blood-vessel injury, a reaction to contrast dye, kidney problems, and blockage or re-narrowing of the stent. Serious complications can include a heart attack, stroke, emergency surgery or death. Your own risk depends on your health and the complexity and urgency of treatment.
Alternatives include medicines and lifestyle treatment, or coronary bypass surgery. The number and position of narrowings, symptoms and other conditions help guide the choice. Ask what benefit is expected in your particular situation.
Common questions
Is an angiogram the same as PCI?
An angiogram is a test that shows the heart arteries. PCI is a treatment to open a narrowing. Sometimes both happen during the same visit.
Does a stent cure coronary artery disease?
It treats a particular narrowing. Coronary artery disease still needs ongoing care, including medicines and attention to cholesterol, blood pressure, smoking and activity.
Will I feel the stent afterwards?
You should not feel the stent itself. New or persistent chest pain needs assessment; do not assume it is a normal part of recovery.
When to get help
Call 999 for severe or persistent chest pain, severe breathlessness, collapse or signs of a stroke: face drooping, arm weakness or speech difficulty, even if they improve. A newly cold, pale or numb arm or leg on the catheter side also needs emergency help. For heavy or persistent wound bleeding, lie down, apply firm pressure and call 999. Do not drive yourself to A&E.
Contact your treating team promptly for fever, worsening wound redness or swelling, new palpitations or increasing breathlessness. If you cannot reach them, contact NHS 111. Do not wait for a routine private appointment.
Sources & further reading
- NHS: coronary angioplasty and stents
- British Cardiovascular Intervention Society: the PCI procedure
- NICE: stable angina treatment recommendations
- NHS: recovery after coronary angioplasty
- NHS: risks of coronary angioplasty
This general guide supports discussion with your care team. It does not replace your individual assessment, consent discussion or hospital discharge instructions. Hospital protocols and recovery times vary.
Discuss your next step
Dr Faisal Khan offers general and specialist cardiology consultations in London and Surrey. Bring your questions, medicines list and any relevant test results. If a procedure is appropriate, the team will confirm the treatment location and arrangements.
Arrange a consultation