Glutamate infusion for prevention of Acute Kidney Injury in surgery for ischemic heart disease: (GLUTAMICS III = GLUTAmate for Metabolic Intervention in Coronary Surgery III)
This research, called GLUTAMICS III, is investigating if giving a specific fluid called L-glutamic acid through a drip during heart bypass surgery can reduce the chance of patients developing acute kidney injury. Acute kidney injury means your kidneys suddenly stop working as well as they should. The study is for adults who are having heart bypass surgery due to heart disease but do not have diabetes. Researchers will compare patients receiving L-glutamic acid with those receiving a standard salt solution (sodium chloride) to see if L-glutamic acid helps protect the kidneys. They will also look at how this treatment affects heart health after surgery.
At a glance
What is this study about?
When people have heart surgery, especially a type called coronary artery bypass surgery, there's a chance their kidneys might not work as well afterwards. This sudden dip in kidney function is called acute kidney injury (AKI). It's a complication that doctors want to avoid because it can make recovery harder.
This study, officially known as GLUTAMICS III, is testing a new approach to try and prevent this potential kidney problem. Researchers are looking at whether a substance called L-glutamic acid, given through a drip, can protect the kidneys during and after surgery. L-glutamic acid is a type of amino acid, which are the building blocks of proteins. The idea is that it might help the kidney cells stay healthy when they are under stress during surgery.
To see if it works, some patients will receive L-glutamic acid, while others will get a standard salt solution (sodium chloride), which is commonly used. Doctors will then carefully measure how well the kidneys are working after surgery to see if there's a difference between the groups. They will also check on heart health after the operation. By doing this, they hope to find better ways to care for patients undergoing heart surgery.
Key takeaways
- This study investigates preventing kidney problems after heart bypass surgery.
- It tests a special drip fluid called L-glutamic acid.
- Participants are adults having heart bypass surgery who do not have diabetes.
- Researchers will compare L-glutamic acid with a standard salt solution.
- The main goal is to see if it reduces acute kidney injury and impacts heart health.
Who may be eligible?
To be able to take part in this study, you would generally need to be an adult, aged 18 or older, who is scheduled to have coronary artery bypass surgery, which is a type of heart operation.
Importantly, this study is specifically looking for people who do not have diabetes. This helps the researchers understand the effect of the treatment on a specific group of patients.
Both men and women can participate in this research. Your doctors will check other specific medical details to make sure the study is right and safe for you.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- Are you 18 years old or older?
- Are you currently planning to have heart bypass surgery?
- Do you NOT have diabetes?
- Are you comfortable with receiving either L-glutamic acid or a standard salt solution through a drip during surgery?
- Are you able to attend follow-up assessments after your surgery?
What does participation involve?
If you decide to take part in this study, you would first have some checks before your heart surgery. During your surgery, you would receive either the study drug (L-glutamic acid) or a standard salt solution through a drip. You wouldn't know which one you are getting, and neither would your doctors initially – this is common in research to keep the results clear. After your surgery, the doctors will take blood samples to check your kidney function and heart health. They'll look at specific markers in your blood, like creatinine for your kidneys, and NT-proBNP for your heart. You would have follow-up checks during your hospital stay and potentially for a short period after you go home. The total duration of your active participation, including assessments, would typically be for the period around your surgery and immediate recovery.
Potential risks and benefits
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Common questions
What is acute kidney injury (AKI)?
It's when your kidneys suddenly stop working as well as they should, often after a stressful event like surgery.
What is heart bypass surgery?
It's a type of open-heart surgery to improve blood flow to the heart, usually for people with blocked arteries.
What is L-glutamic acid?
It's a type of amino acid, a natural building block in your body, which the study is testing to protect kidneys.
Will I know if I'm getting the study drug or the standard solution?
No, during the study, neither you nor your doctors will usually know; this helps ensure fair results.
Do I have to take part?
No, participating in any research study is always entirely your choice, and your medical care will not be affected if you choose not to.
How to find out more
Always speak to your GP or specialist before deciding to take part in a study.
Discussion
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