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Poorly Diagnostic Findings

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.

Poorly Diagnostic Findings

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