Non-invasive Coronary Thrombus Imaging to Define These Cause of Acute Myocardial Infarction
This study is exploring a new way to understand why heart attacks happen. We know that heart attacks are often caused by blood clots in the heart's arteries, but sometimes it's due to other things. Doctors use blood tests to spot heart damage, but these don't always explain the cause. Researchers are testing an exciting new imaging scan that can 'see' if there's a blood clot in your heart arteries from outside your body. The aim is to help doctors give patients the best diagnosis and treatment, which could lead to better recovery after a heart attack. The study will involve 80 patients who have recently had a heart attack at the Royal Infirmary of Edinburgh.
At a glance
What is this study about?
When someone has a heart attack, it usually means there's a blockage in one of the arteries supplying blood to their heart. Most often, this blockage is caused by a blood clot forming on fatty deposits inside the artery. Doctors typically give powerful blood-thinning medicines to treat these clots, which can save lives. However, we're finding that not all apparent heart attacks are actually caused by blood clots, and sometimes clots might be present but not immediately recognised. This can make it tricky for doctors to know the exact cause and the best way to help.
This important study is testing a brand-new type of scan that can look inside your heart arteries to see if there's a blood clot present, without needing to go inside your body. It's a combination of two powerful imaging techniques: a PET scan and a CT scan. By being able to 'see' these clots, doctors hope to get a much clearer picture of what triggered a heart attack in each patient. This deeper understanding could be a game-changer, helping to make sure everyone gets the most accurate diagnosis and the most effective treatment for their specific situation.
Ultimately, if this new scanning method proves successful, it could significantly improve how patients are cared for after a heart attack. Knowing precisely what caused the heart attack means doctors can fine-tune treatments, potentially leading to better recovery and fewer future problems for patients across the UK.
Key takeaways
- This study aims to find better ways to understand the causes of heart attacks.
- It tests a new scan that can detect blood clots in heart arteries.
- The goal is to help doctors give patients the right diagnosis and treatment.
- Participation involves several scans, a blood test, and a follow-up questionnaire.
- It's happening in Edinburgh, inviting patients who recently had a heart attack.
Who may be eligible?
This study is looking for volunteers who are 18 years old or older. You might be able to join if you've recently been diagnosed with a heart attack and your initial tests (like the heart tracing, known as an ECG, and blood tests for heart damage) showed certain changes. Also, doctors would have checked your heart arteries with a special X-ray test and found that they weren't completely blocked up, or that any blockages weren't severe.
There are some situations where you wouldn't be able to join the study. For example, if you have certain other heart conditions like Takotsubo cardiomyopathy (a temporary heart condition often brought on by stress) or inflammation of the heart muscle (myocarditis). Also, if you have severe kidney problems, are pregnant or breastfeeding, or have known allergies to certain dyes used in scans, you wouldn't be able to take part.
Finally, you need to be able to lie flat for a period of time for the scans and be able to understand and agree to take part in the study yourself.
- Are you 18 years old or older?
- Have you recently had a heart attack?
- Did doctors find your heart arteries were not severely blocked on initial checks?
- Are you able to lie flat for scans?
- Are you not pregnant or breastfeeding?
- Do you not have severe kidney disease or certain other heart conditions?
This is a guide only — the research team will confirm whether you can take part.
What does participation involve?
If you join this study, you will have a few different tests and checks. First, you'll have a special combined scan of your heart called a PET-CT scan, which is the new test being looked at. You will also have a standard ultrasound scan of your heart (called an echocardiogram) and an MRI scan of your heart. All these scans help doctors get detailed pictures.
In addition, you'll have a blood test. A total of about four tablespoons (60 mL) of blood will be taken. Some of this will be tested straight away, and the rest will be stored safely for future approved research. Finally, about 6 to 12 months after your heart attack, you will receive a questionnaire to fill out, asking about how you've been doing. The whole process, from the scans to the final questionnaire, will take place over roughly a year after your heart attack.
Potential risks and benefits
Locations (1)
- Royal Infirmary of EdinburghEdinburgh, United Kingdom· Recruiting
Common questions
What is a heart attack?
A heart attack happens when the blood flow to part of the heart is suddenly blocked, often by a blood clot, causing damage to the heart muscle.
What is the new scan being tested?
It's a special combined scan called a PET-CT that can 'see' if there's a blood clot in your heart arteries from outside your body.
Will this study change my heart attack treatment?
No, this is a research study. Your treatment for the heart attack will be decided by your doctors based on current best practices, separate from the study.
Where is the study taking place?
The study is taking place within the cardiology department at the Royal Infirmary of Edinburgh.
Do I have to pay to take part?
No, all aspects of the research study are free of charge for participants.
How to find out more
Always speak to your GP or specialist before deciding to take part in a study.
Interested in taking part?
Discussion
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