Nitric Oxide Levels to Predict Blood Vessel Spasms After Brain Bleeding
Part of Brain & nervous system, Heart & circulation clinical trials.
This study examines whether a substance called nitric oxide in brain fluid can help doctors predict who will develop dangerous blood vessel tightening after a subarachnoid hemorrhage—a serious type of brain bleeding. The goal is to find an early warning sign so doctors can intervene faster.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are an adult (18 or older)
- You had a subarachnoid hemorrhage (brain bleeding in a specific area) and had a drainage tube placed in your brain within 24 hours of the bleeding
- You are not pregnant
- You do not have a pre-existing neurological condition (such as stroke, Parkinson's, or dementia)
- You do not have a bleeding disorder or severe anemia
- You can have a specific ultrasound test (Transcranial Doppler) to measure blood flow in your brain
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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