" /> Vasovagal Reaction - CISMeF





Preferred Label : Vasovagal Reaction;

NCIt synonyms : Vasovagal Response;

NCIt definition : Sudden drop of the blood pressure, bradycardia, and peripheral vasodilation that may lead to loss of consciousness. It results from an increase in the activity of the vagus nerve. It may be triggered by emotions of fear or pain or gastrointestinal upset and may be relieved by lying down while keeping the legs elevated.;

Alternative definition : CTCAE: A disorder characterized by a sudden drop of the blood pressure, bradycardia, and peripheral vasodilation that may lead to loss of consciousness. It results from an increase in the stimulation of the vagus nerve.; NICHD: Sudden onset of decreased blood pressure, bradycardia, and peripheral vasodilation resulting from increased activity of the vagus nerve.;

FDA table : Patient Code (Appendix B);

Codes from synonyms : E12851;

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29/07/2025


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