Hidden vein networks revealed: study could change surgery prep
NCT ID NCT07206667
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the veins in the head and neck change after certain brain or spine surgeries. Researchers want to understand the body's backup drainage pathways, which may help doctors better prepare for surgery, reduce bleeding, and explain post-surgery headaches. About 30 adults having surgery at Brest University Hospital will get an extra MRI scan to map these vein changes.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Patient: * Adult * Surgery of the posterior cranial fossa or posterior approach to the upper cervical spine, regardless of indication, performed in the neurosurgery department at Brest University Hospital * Having undergone an MRI with T1 echo gradient sequence with gadolinium (T1 TFE GADO) * Affiliated with a Social Security scheme * Having given written consent to participate in the study Exclusion Criteria: * Pregnant or breastfeeding women * Allergy to gadolinium * Any contraindications to undergoing an MRI scan (incompatible medical device implant, claustrophobia, etc.) * Patients unable to understand the protocol * Patients under guardianship or conservatorship * Patients subject to a future protection order, family authorization, or legal protection
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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CHU Brest
Brest, Brittany Region, 29200, France