fMRI in Blood Phobia Syncope

Withdrawn before enrolling

Conditions studied: Syncope, Blood Injury Phobia, Autonomic Dysfunction

In brief

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.

Key facts

Study ID

NCT00715065

Run by

Vanderbilt University

People needed

0

Starts

2010-06-01

Expected to finish

2010-06-01

Last updated by the study team

2013-01-09

Who can join

Age: 18 and older, up to 30. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• 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

You may not qualify if…

• 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

Where it is running

• Vanderbilt University Autonomic Dysfunction Center — Nashville, Tennessee, United States

Full record on ClinicalTrials.gov

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