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Detection of proximal conduction blocks using a triple stimulation technique improves the early diagnosis of Guillain-Barre syndrome

Abstract : Objective: Current diagnostic electrophysiological criteria can miss the early stages of Guillain-Barre syndrome (GBS). We evaluated the diagnostic efficiency of the triple stimulation technique (TST) in highlighting proximal conduction blocks (CBs) in patients who do not meet the electrophysiological criteria for GBS. Methods: All patients with a diagnosis of clinical GBS referred to our center between September 2014 and January 2016 were included in the study. For patients who did not fulfill the electrophysiological criteria of GBS, we performed the TST examination. Results: Among the 44 included patients, 86% fulfilled the electrophysiological criteria of GBS during the initial nerve conduction study (NCS). The six remaining patients had proximal CBs revealed by TST examination. Therefore, a combination of a conventional NCS and the TST allowed 100% of the patients to be electrophysiologically diagnosed. Conclusions: TST is useful for the diagnosis of GBS in association with NCS, particularly in the early stages of the disease. (C) 2017 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.
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https://hal-amu.archives-ouvertes.fr/hal-02000333
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Submitted on : Wednesday, January 30, 2019 - 3:11:41 PM
Last modification on : Wednesday, August 19, 2020 - 12:08:17 PM

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  • HAL Id : hal-02000333, version 1

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Amandine Sevy, Aude-Marie Grapperon, Emmanuelle Salort-Campana, Emilien Delmont, Shahram Attarian. Detection of proximal conduction blocks using a triple stimulation technique improves the early diagnosis of Guillain-Barre syndrome. CLINICAL NEUROPHYSIOLOGY, 2018, 129 (1), pp.127-132. ⟨hal-02000333⟩

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