Coronary angioplasty

Coronary angioplasty is a procedure used to treat narrowed or blocked arteries that supply blood to the heart. During the treatment, a small balloon is inserted into the affected artery and gently inflated to widen it. In most cases, a tiny mesh tube is placed in the artery to keep it open and improve blood flow.

The procedure can relieve chest pain (angina), reduce the risk of a heart attack and help the heart work more effectively. It’s sometimes called percutaneous coronary intervention (PCI) or percutaneous transluminal coronary angioplasty (PTCA).

When a coronary angioplasty is needed

Your heart needs a constant supply of blood, delivered through blood vessels called coronary arteries. If these arteries become narrowed or stiff — a condition called atherosclerosis — blood flow can be restricted. This can lead to symptoms such as chest pain, especially during activity or stress.

Many people manage mild symptoms with medication, but a coronary angioplasty may be recommended if symptoms are severe, persistent, or if you’ve recently had a heart attack. The procedure helps restore blood flow, ease symptoms, and lower the risk of future heart problems.

Before an angioplasty, your doctor will usually carry out a cardiac catheterisation to examine your arteries. In some cases, the procedure can progress directly to angioplasty at the same appointment.

Signs you might need a coronary angioplasty

You should speak to your doctor if you notice symptoms such as:

• Chest pain, tightness or pressure (angina)
• Heart rhythm changes, dizziness or fainting
• Shortness of breath, especially during activity
• Unusual fatigue or tiredness

These can signal that your heart isn’t getting enough blood. Your doctor will help decide if angioplasty is the best option for you.

What are the benefits of coronary angioplasty?

Coronary angioplasty is designed to improve blood flow to your heart. The procedure can:

• Help you feel more energetic and improve your overall quality of life
• Improve your ability to carry out daily activities and exercise
• Reduce the risk of future heart attacks in people who have already had one
• Relieve symptoms such as chest pain and shortness of breath.

Is a coronary angioplasty procedure right for you?

A coronary angioplasty may be recommended if your doctor thinks it will improve blood flow to your heart and relieve symptoms such as chest pain, shortness of breath, or fatigue.

You might be offered the procedure if:

• Medication alone isn’t controlling your chest pain
• You have a type of coronary heart disease that responds well to angioplasty
• You’ve recently had a heart attack

During your consultation, your cardiologist will discuss the potential benefits and risks, helping you understand how the procedure could improve your heart health and quality of life. Together, you can decide if it is the right option for you.

When coronary angioplasty may not be the best option

Coronary angioplasty is very effective for many people but it may not be suitable for everyone. Your cardiologist may recommend alternative treatments if:

• Medication is managing your condition sufficiently
• The blockages in your arteries are very complex or widespread
• You have other medical conditions that make surgery higher risk

Your cardiologist will assess your situation carefully and discuss the safest and most effective options for your heart health.

During the procedure, a thin, flexible tube called a catheter is gently inserted into an artery, usually in your wrist or groin, and guided to the blocked or narrowed artery in your heart. A small balloon at the tip of the catheter is then inflated to widen the artery and improve blood flow.

A stent — a tiny, mesh-like tube — is often placed into the artery at the same time. The stent keeps the artery open permanently, supporting better blood flow and reducing the chance of the artery narrowing again.

Your cardiologist will explain whether a stent is needed, what type is suitable, and how it will help your heart work more effectively. Depending on how many arteries are being treated, the procedure usually lasts around 1 hour.

Stents

A stent is a tiny wire mesh tube that acts as a scaffold to hold your artery open. It’s inserted at the same time as the balloon inflation and stays in your artery permanently. Stents are usually coated with medication to reduce the risk of the artery narrowing again.

Stents are commonly used in coronary angioplasty because they help maintain long-term blood flow, relieve symptoms such as chest pain, and reduce the risk of heart attacks in the future.

Your cardiologist will discuss whether you need a stent, what type is best and how it will help improve your heart health.

Before the procedure

Before your coronary angioplasty, you’ll meet with your cardiologist to discuss your symptoms, medical history and any concerns you might have. This consultation allows your care team to tailor your treatment to you and answer your questions so you feel confident and informed.

You may need additional tests, such as blood tests or scans, to check your heart and plan the procedure safely. Any additional costs will be discussed before further tests are carried out. Your team will also give you clear guidance on preparing for the procedure, including any dietary or lifestyle adjustments.

Pre-operative appointments and tests

Your pre-operative appointments are an important part of your care. They give you the chance to talk through any questions or concerns, understand the procedure, and feel confident about what to expect. During these visits, your team may carry out tests and scans to ensure your treatment is carefully planned and tailored to you.

Food and drink

For most coronary angioplasty procedures, you’ll be awake under local anaesthetic, so there are usually no strict fasting requirements. You may be advised to have a light meal beforehand. Your care team will give clear instructions to ensure you feel comfortable and prepared on the day.

Medications

It’s important to tell your doctor about all the medications you take, including blood thinners, over-the-counter drugs and supplements. Some may need to be adjusted or temporarily stopped to reduce the risk of complications.

Lifestyle changes

Making small adjustments to your lifestyle can help your procedure go smoothly and support recovery. Your care team may advise:

• Eating healthily and avoiding heavy meals just before surgery
• Maintaining gentle activity as recommended
• Stopping or reducing smoking before your procedure
• Weight management; following any guidance to achieve a healthy weight

These steps help lower risks and improve outcomes, and your team will guide you on what’s best for you.

Looking after your mental health

Feeling anxious before heart surgery is completely normal. Taking care of your mental wellbeing can help you feel more prepared and confident. Simple steps like talking to your care team, discussing worries with loved ones and practising relaxation techniques can make a real difference.

Who will be involved?

At Spire Healthcare, our consultants are GMC-registered experts, often holding specialist NHS positions and recognised for their work in complex cardiac procedures. Many are internationally renowned for research in their field.

You’ll be supported by a dedicated, specialist team throughout your journey, in modern, well-equipped hospitals, ensuring you receive expert care at every stage.

The procedure

During the procedure

The procedure begins with a small cut in your arm or groin, through which your consultant will insert a thin tube called a catheter. Using X-ray guidance and a dye called a contrast agent, the catheter is carefully guided to the affected coronary artery.

A tiny balloon on a wire is then positioned at the site of the blockage. When inflated, the balloon pushes fatty deposits against the artery wall, improving blood flow. While the balloon is then removed, in some cases a stent is inserted to keep the artery open long-term. Your consultant will advise if a stent is suitable for you.

How long does the procedure take?

The procedure typically takes around an hour, depending on how many arteries are being treated.

Anaesthesia

During a coronary angioplasty, local anaesthesia is used to numb the area where the catheter is inserted. This means you’ll be awake but relaxed and won’t feel pain during the procedure. Sedation may also be offered to help you feel calm and comfortable throughout. General anaesthesia is not usually needed for a standard angioplasty.

Pain during and after surgery

During a coronary angioplasty, you shouldn’t feel pain because local anaesthetic is used at the catheter insertion site. A nurse will stay with you throughout to provide reassurance, and you may be offered light sedation to help you feel calm and comfortable. After the procedure, it’s normal to feel some tenderness or mild discomfort in your arm or groin. Your healthcare team can provide pain relief and advice to help manage any soreness as you recover at home.

What happens straight after surgery

Most patients stay overnight in the hospital following a coronary angioplasty. After the procedure, you’ll be taken to a comfortable area to rest and recover. For the first few hours, you’ll need to lie flat to help the small cut in your arm or groin seal properly and reduce the risk of bleeding.

Your hospital stay

Staying in hospital after a coronary angioplasty allows our team to support you as you recover. You’ll be closely monitored and our nurses will be on hand to help you with anything you need. Friends and family can visit and when you’re ready, your consultant will guide you through going home and what to expect.

What to expect after coronary angioplasty

Most people can expect a short hospital stay, followed by a few days of rest at home. Light activity can usually resume within a week while more strenuous exercise or heavy lifting should be avoided for a few weeks to allow your body or arteries to heal safely.

Short-term side effects

• Bruising or tenderness at the catheter insertion site (groin or arm)
• Mild chest discomfort or soreness
• Redness
• Swelling

First 24 hours recovery

After your coronary angioplasty, you’ll need to rest and take it easy for the first day. You may need to lie flat for a few hours to help the catheter insertion site heal. Most people stay in hospital overnight for monitoring, with nurses checking your heart and ensuring you’re comfortable.

Managing your recovery at home 

Once you’re home, our care continues, supporting you every step of the way. Follow the advice from your care team regarding activity levels, medications, and wound care. Listen to your body, avoid strenuous exercise for a few weeks, and contact your healthcare professional if you notice unusual symptoms or discomfort.

Wound care

After your coronary angioplasty, you’ll have a small wound where the catheter was inserted, typically in your groin or arm. It’s normal for this area to feel tender or look slightly bruised for a few days. Keep the site clean and dry, follow any instructions on dressings, and monitor for redness, swelling, or discharge to help prevent infection and support healing.

Pain relief 

It’s normal to have some tenderness where the catheter was inserted. While in hospital, you’ll be given suitable pain relief, and you should continue taking any medication recommended once you’re home.

If a stent was placed, your care team will also advise on blood-thinning medication to support your recovery.

You may feel soreness around your chest and catheter sites. Pain relief will be provided in hospital and a supply given for home use for up to 14 days to keep you comfortable.

Cardiac rehab

Cardiac rehabilitation is a programme designed to support your recovery, help you regain strength, and improve your heart health after a coronary angioplasty. It usually includes guided exercise, advice on lifestyle changes, and education about managing your heart condition. Attending rehab can help you feel more confident and reduce the risk of future heart problems.

Check-ups and follow-up appointments

After your coronary angioplasty, you’ll have follow up appointments to monitor your recovery and ensure your heart is functioning well. Your consultant will check your progress, review medications and discuss any ongoing symptoms. The frequency of these appointments will depend on your individual needs.

Smoking

Avoid smoking during your recovery, as it can slow healing and increase the risk of complications.

Driving

Following a coronary angioplasty, you shouldn’t drive for at least a week if the procedure went well and no further surgery is needed. If the angioplasty followed a heart attack or was less successful, you may need to wait around 4 weeks. Check with your doctor before returning to driving and notify your insurer to keep your coverage valid. If you drive a bus, coach, or lorry, you must inform the DVLA and follow their guidance before returning to work.

Time off work

How soon you return to work depends on your job and recovery. Many people can resume light duties within a few days, while physically demanding roles may require a longer break. Your consultant can advise when it’s safe to go back and what adjustments, if any, you may need.

Help from loved ones

After your angioplasty, you won’t be able to drive, so it’s important to arrange for a friend or family member to take you home. They can also support you with simple tasks around the house, such as shopping, cooking, or light cleaning, for the first 24–48 hours while you recover.

Resuming normal activities

After a coronary angioplasty, it’s important to gradually return to your usual activities while giving your heart time to recover. Start gently with activities like short walks, slowly increasing your stamina over the following weeks. You should avoid heavy lifting and other sports for about a week following your operation.

Recommended lifestyle changes

To support long-term heart health, aim to maintain a balanced diet, manage your weight, keep active, and avoid smoking. Limiting alcohol, managing stress, and keeping blood pressure and cholesterol under control can also help protect your heart and improve recovery after your procedure.

Sexual activity

It’s normal to have questions about intimacy after a heart procedure. Most people are able to return to sexual activity once they feel physically well and their doctor has cleared them, usually in a couple of weeks.

If you experience chest pain, breathlessness or unusual fatigue, pause and seek medical advice. Open communication with your partner can also help you feel more confident and comfortable.

Coronary angioplasty is generally safe, but like all procedures, it carries some risks.

Possible risks include:

• Allergic reaction to the dye used during cardiac catheterisation
• Bleeding or bruising at the catheter site
• Narrowing of the treated artery
• Stent blockage, potentially causing a heart attack
• Stroke or heart attack from a clot breaking away

Contact your healthcare professional if you notice:

• Fever or other signs of infection
• Persistent, severe chest pain
• Redness, swelling or discharge at catheter site
• Shortness of breath, dizziness or palpitations

If conventional angioplasty isn’t suitable, other treatments may be considered:

• Coronary artery bypass graft (CABG) — healthy blood vessels from elsewhere in the body are used to bypass blocked arteries, restoring blood flow to the heart
• Specialised angioplasty techniques — if the arteries are very stiff or have hard deposits, doctors can use tiny tools or lasers to gently remove or break up the blockage before inserting a stent

Your cardiologist will discuss which options are safest and most effective for you and your heart.