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  • Title: Recurrent unexplained syncope: the role of head-upright tilt table testing.
    Author: Grubb BP, Kosinski D, Samoil D.
    Journal: Heart Lung; 1993; 22(6):502-8. PubMed ID: 8288453.
    Abstract:
    Recurrent episodes of sudden unexplained syncope are a common complaint of patients referred to health care professionals for evaluation. Traditional evaluations are both time consuming and expensive and leave many patients without a diagnosis. Although vasovagally mediated episodes of hypotension and bradycardia have been thought to be a common cause of unexplained syncope, this was traditionally a diagnosis of exclusion. Head-upright tilt table testing has recently emerged as a valuable method for confirming the diagnosis of vasovagal syncope and has allowed a better understanding of this phenomena. This article reviews the pathophysiology of vasovagal syncope, the use of head-upright tilt table testing in its diagnosis, and potential therapies used to prevent recurrences.
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