Prevalence of family history in patients with reflex syncope.

Abstract excerpt

Reflex syncope is defined by a rapid transient loss of consciousness caused by global cerebral hypoperfusion resulting from vasodilatation and/or bradycardia attributable to inappropriate cardiovascular reflexes. A hereditary component has been suggested, but prevalence of family history may differ among subtypes of reflex syncope, as these have different autonomic responses and pathogeneses may be diverse. The...

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