WithdrawnNot Applicable

fMRI in Blood Phobia Syncope

Stopped: Could not get funding for fMRI studies at this time.

United States0Started 2010-06

Plain-language summary

We plan to study patient who faint in response to the sight of blood and compare them to healthy subjects who do not. We are going to use a special type of MRI scan (functional MRI) to determine if there are differences in brain activation in response to seeing bloody or gory pictures that occur before the fainting occurs.

Who can participate

Age range18 Years – 30 Years

SexALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * 18-30 years of age * 1\. History of at least one syncopal episode upon exposure to viewing blood (Case Group) * Negative urine pregnancy test on study day Exclusion Criteria: * Vasoactive medications (within 2 weeks of study day) * antihypertensives * beta blockers * vasoconstrictors * Psychotropic medications (within 4 weeks of study day) * History of psychostimulant or opiate use * History of alcohol, benzodiazepine or cannabis abuse or dependence

What they're measuring

fMRI BOLD signal

Timeframe: Immediate

Trial details

NCT IDNCT00715065

SponsorVanderbilt University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2010-06

View on ClinicalTrials.gov More Syncope trials