How a small heart hole affects high-altitude fluid in the lungs
Part of Genetic & congenital, Heart & circulation, Lungs & breathing clinical trials.
This study looks at how a small hole in the heart (called a patent foramen ovale) affects people who get fluid in their lungs at high altitude. It tests whether this heart feature causes problems during exercise in low-oxygen conditions, which could help explain why some people get high-altitude pulmonary edema.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 59 years old.
- You have had a doctor-documented episode of fluid in the lungs after being at high altitude (not caused by heart problems).
- You are physically active and can do endurance exercise.
- You are not taking heart or lung medications.
- You do not have anemia, iron deficiency, or have used iron supplements recently.
- You are not on blood thinners or aspirin that cannot be paused.
- You are not pregnant.
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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