Coronary Angioplasty

Coronary angioplasty opens a narrowed or blocked heart artery using a small balloon and, in almost all cases, a metal-mesh stent that holds the artery open. It is performed through a fine tube inserted at the wrist or the groin, without open surgery. At Allergy Asthma Foundation it is carried out by an experienced team using current equipment and protocols, with clear information given before, during and after so that you know what to expect at every stage.

This page explains why the procedure is done, how to prepare, what happens on the day, and what recovery and follow-up involve. Your own consultant will go through the details that apply to your situation and answer any questions before you agree to go ahead.

Why it is done

Coronary angioplasty is usually recommended for one or more of the following reasons:

• Narrowing of a heart artery causing angina that limits daily life
• Ongoing chest pain despite medical treatment
• A heart attack, where opening the artery quickly limits damage
• A significant blockage found on a CT or invasive angiogram
• An abnormal stress test pointing to a flow-limiting narrowing

It is only offered when the expected benefit clearly outweighs the risks, and the decision is always made together with you. If a simpler test or treatment would answer the question or relieve the problem, that is tried first.

How to prepare

• You will have a check of your fitness for sedation, including your medicines and any breathing or heart problems.
• Do not eat for six hours before, and only sips of water up to two hours before.
• Pause blood thinners only on the team's instruction, and confirm the plan the day before.
• Arrange for an adult to take you home and stay with you overnight; you must not drive for 24 hours after sedation.
• Bring an inhaler if you use one, and a list of your medicines.

What happens on the day

1. A cannula is placed in a vein and you are given medication to keep you relaxed; you stay awake.
2. The skin at the wrist or groin is numbed and a thin tube is passed to the heart arteries.
3. Dye is injected and X-ray pictures confirm the narrowing to be treated.
4. A balloon is inflated at the narrowing and a stent is deployed to hold the artery open.
5. The tube is removed and the puncture site is closed with a band or a small plug.

After the procedure

Most patients spend a few hours on a monitored ward and stay one night. If the wrist was used you can usually sit up and eat straight away; if the groin was used you lie flat for a few hours. Light activity resumes within a few days and most normal activities within a week.

You will be given written instructions covering activity, wound or puncture-site care where relevant, which medicines to restart and when, and the warning signs that mean you should contact us or attend the emergency department. A follow-up appointment or a phone review is arranged before you leave.

Benefits and risks

The main benefit is a clear answer or effective treatment that changes what happens next — a firm diagnosis, a blocked passage reopened, symptoms brought under control, or a condition safely monitored over time. For most people the procedure is straightforward and complications are uncommon.

No procedure is entirely without risk. The ones to be aware of for this treatment include:

• Bruising or bleeding at the wrist or groin puncture site
• A reaction to the X-ray dye, or a temporary effect on kidney function
• Re-narrowing of the treated segment over time, needing a repeat procedure
• Uncommonly, damage to the artery, an irregular heartbeat, or a heart attack or stroke

The team is trained and equipped to recognise and manage these, and the consent discussion covers how likely each is in your case and what is done to reduce it.

Results and follow-up

The result is known immediately: your cardiologist will tell you what was found and what was done before you leave the lab, and you are started on medicines — including a blood-thinning tablet — that must not be stopped without cardiology advice. Your consultant explains what the result means in the context of your symptoms and examination, and sets out the next step — reassurance and discharge, a change of treatment, a further test, or a planned review. With your consent a summary is sent to your family doctor so that everyone caring for you is working from the same plan.

Questions patients ask

Do I need a referral?

You can book a consultation directly to discuss whether coronary angioplasty is right for you. The procedure itself is arranged by the consultant after that discussion, once you have had time to consider it.

Will it hurt?

Discomfort is kept to a minimum with local anaesthetic, sedation or pain relief as appropriate to the procedure. The team will tell you exactly what you are likely to feel and will stop or pause if you need them to.

How long will I be at the hospital?

Most people are in and out within a few hours; where an overnight stay or a longer recovery is expected, that is explained clearly when the procedure is booked so you can plan around it.

To arrange coronary angioplasty at your nearest AAF centre, book a consultation online or request a callback. Please bring a list of your current medicines and any previous test results or discharge summaries.