Testing heart blood-flow problems without clogged arteries
Part of Genetic & congenital, Heart & circulation, Pain clinical trials.
This study looks at how well the heart’s blood vessels work in people who have symptoms of reduced blood flow but no major artery blockage. It uses special heart tests with medicines to check how the vessels respond and may help guide better diagnosis and treatment.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Be able to sign a consent form and agree to take part
- Be 18 years or older
- Doctors must be able to safely perform an invasive heart test using a thin pressure wire and adenosine and/or acetylcholine
- You should not be in an unstable condition right now (hemodynamic instability)
- There should be no plan for the test equipment to have measurement problems
- You must not be having a current “culprit” artery from a new heart attack (acute coronary syndrome)
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study looks at people who have chest pain but don't have major blockages in their heart arteries. It aims to understand how the tiny blood vessels and artery spasms might be causing symptoms, using special heart tests.
This study examines how a special measurement technique works when blood vessels are dilated during a heart imaging procedure. It may help doctors better assess whether narrowing in your heart arteries needs treatment.
This study is looking at people who have chest pain or shortness of breath but whose heart arteries look fairly open on an angiogram. It aims to understand why they have symptoms and how to improve care. You may qualify if you're having a coronary angiogram and it shows no major blockages.
This trial is testing a new way to diagnose problems in the small blood vessels of the heart that can cause chest pain even when the main arteries look clear. The test uses a special technique to measure how well these small vessels work, which could help find the cause of your symptoms.
This study looks at why some people have chest pain or other heart symptoms even when their main heart arteries are not blocked. It tests whether inflammation in the small blood vessels of the heart might cause these symptoms, and aims to understand how to better diagnose and treat this condition.
This study looks at people who are being checked for possible heart artery–related chest or similar discomfort, but without major artery blockage (non-obstructive arteries). It aims to help doctors understand what might be causing symptoms and guide safer testing.
Hear when a new Myocardial Ischemia trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.