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Diagnostic agreement in patients with psychogenic movement disorders

AuthorsMorgante, Francesca; Mir, Pablo ; Martino, Davide
Issue Date2012
PublisherJohn Wiley & Sons
CitationMovement Disorders 27: 548- 552 (2012)
AbstractBackground: The reliability and applicability of published diagnostic criteria for psychogenic movement disorders (PMDs) have never been examined. Methods: Eight movement disorder and six general neurologists rated 14 patients diagnosed with PMD and 14 patients diagnosed with organic movement disorders. Raters provided a dichotomous judgment (i.e., psychogenic or organic) upon review of video-based movement phenomenology and a category of diagnostic certainty based on the Fahn-Williams and Shill-Gerber criteria after accessing standardized clinical information. We measured interobserver agreement on the diagnosis and clinical certainty judgment of PMD. Results: In both groups of raters, agreements were >fair> on the video-based dichotomous judgment, but improved to >substantial> after access to standardized clinical information. >Slight> to >poor> agreement was reached for the >probable> and >possible> categories of diagnostic certainty corresponding to both diagnostic criteria. Conclusions: Diagnosis according to clinical available criteria for PMD yields poor diagnostic agreement. © 2012 Movement Disorder Society.
Identifiersdoi: 10.1002/mds.24903
issn: 0885-3185
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