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Syncope: Sensitivity and Specificity

Introduction: As diff dx, see also Epilepsy, which has a large set of distinguishing findings (from JACC article PMID: 12103268). As a subtype, see Neurocardiogenic Syncope.

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Tags: Neurologic Psychiatric Vasculitis Tag this Diagnosis.

Differential Diagnoses include: Epilepsy, Neurocardiogenic Syncope

The sensitivity and specificity of findings for Syncope are listed below. See the left navigation bar to change the display.


Finding SensitivitySpecificity Comments, Study
Hyperventilation Test Edit 57%84%

hyperventilation reproduces multiple pre-syncopal symptoms

Study: J Neurol Neurosurg Psychiatry. 1991 Nov;54(11):953-6. PMID: 1800665