Disease or Syndrome
vasovagal syncope
va·so·va·gal syn·co·pe
Subclass of:
Orthostatic intolerance; Syncope
Definitions related to vasovagal syncope:
  • An autonomic reflex response to emotional or orthostatic stress, which is characterized by paradoxical hypotension and bradycardia.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • (syncope, vasovagal) Loss of consciousness due to a reduction in blood pressure that is associated with an increase in vagal tone and peripheral vasodilation.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • (neurally mediated/neurocardiogenic syncope) A condition in which syncope occurs due to a brief imbalance of the autonomic nervous system.
    ACC/AHA Clinical Data Terminology
    American College of Cardiology and American Heart Association , 2020
  • Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers, such as the sight of blood or extreme emotional distress. It may also be called neurocardiogenic syncope.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.