Lookup NU author(s): Dr Peter Fawcett,
Dr Ian Schofield
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Objective: Considerable debate still exists regarding the classification of polyneuropathies (PNPs) into predominantly demyelinating, predominantly axonal loss, mixed or unclassified. This study was designed to determine the variation among physicians in the classification of PNPs by using the European Standardized Telematic tool to Evaluate Electromyography knowledge-based systems and Methods (ESTEEM) multicenter database. Methods: Seven physicians from 6 laboratories in Europe sent a total of 156 prospectively collected cases of PNP with electromyography (EMG) data including diagnosis (examination diagnosis) to the database. Each physician interpreted the electrophysiological data from all cases (interpretation diagnosis) and a final diagnosis was given at the consensus meetings of the group (consensus diagnosis). Results: Comparison of each physician's examination diagnosis with his/her interpretation diagnosis, i.e. intra-physician variation, showed a change towards less classified PNPs (P < 0.05). Interpretation diagnoses showed large inter-physician variation in the classification of PNPs. The consensus group was more cautious than individual physicians in classifying PNPs as mixed and axonal. The probability of the consensus diagnosis increased with increasing number of abnormal motor and sensory segments tested. Conclusions: Recognition of variation in classification of PNP as shown in this study and suggesting standards of good clinical practice developed by a consensus group may increase the quality of EMG practice. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.
Author(s): Tankisi H, Johnsen B, Fuglsang-Frederiksen A, de Carvalho M, Fawcett PRW, Labarre-Vila A, Liguori R, Nix W, Olsen M, Schofield I
Publication type: Article
Publication status: Published
Journal: Clinical Neurophysiology
ISSN (print): 1388-2457
ISSN (electronic): 1872-8952
Publisher: Elsevier Ireland
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