Heart muscle coordination and microvessel function SPECT study
Treatments studied
Part of Heart & circulation clinical trials.
This study uses a special heart scan (SPECT) to look at how well the heart muscle is squeezing and how well the tiny blood vessels in the heart are working. It may help doctors understand why some people have chest pain even when their main arteries are not blocked.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have chest pain or other signs of low blood flow to the heart, but your arteries are not blocked (INOCA).
- You have blocked arteries in your heart (obstructive coronary artery disease) or no known heart disease.
- Your heart's pumping ability (ejection fraction) is 55% or higher.
- You have not had a heart attack or a procedure to open heart arteries (stent or bypass surgery) in the past.
- Your blood pressure is not too high (systolic above 180) or too low (systolic below 80).
- You do not have atrial fibrillation, a severe heart block, or other serious medical conditions like kidney failure (GFR below 50).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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