Reference : Multimodal evoked potentials for functional quantification and prognosis in multiple ...
Scientific journals : Article
Human health sciences : Neurology
http://hdl.handle.net/2268/198268
Multimodal evoked potentials for functional quantification and prognosis in multiple sclerosis
English
GIFFROY, Xavier mailto [Centre Hospitalier Universitaire de Liège - CHU > > Service de médecine de l'appareil locomoteur >]
MAES, Nathalie mailto [Centre Hospitalier Universitaire de Liège - CHU > > Service des informations médico économiques (SIME) >]
Albert, Adelin mailto [Université de Liège > Département des sciences de la santé publique > Département des sciences de la santé publique >]
MAQUET, Pierre mailto [Centre Hospitalier Universitaire de Liège - CHU > > Service de neurologie >]
CRIELAARD, Jean-Michel mailto [Centre Hospitalier Universitaire de Liège - CHU > > Service de médecine de l'appareil locomoteur >]
DIVE, Dominique mailto [Centre Hospitalier Universitaire de Liège - CHU > > Service de neurologie >]
1-Jun-2016
BMC Neurology
BioMed Central
Yes (verified by ORBi)
International
1471-2377
[en] Evoked potentials ; Multiple sclerosis ; Prognosis ; Disability
[en] Functional biomarkers able to identify multiple sclerosis (MS) patients at high risk of fast disability
progression are lacking. The aim of this study was to evaluate the ability of multimodal (upper and lower limbs motor, visual, lower limbs somatosensory) evoked potentials (EP) to monitor disease course and identify patients exposed to unfavourable evolution.
One hundred MS patients were assessed with visual, somatosensory and motor EP and rated on the Expanded Disability Status Scale (EDSS) at baseline (T0) and about 6 years later (T1). The Spearman correlation (rS) was used to evaluate the relationship between conventional EP scores and clinical findings. Multiple (logistic) regression analysis estimated the predictive value of baseline electrophysiological data for three clinical outcomes: EDSS, annual EDSS progression, and the risk of EDSS worsening.
In contrast to longitudinal correlations, cross-sectional correlations between the different EP scores and EDSS were all significant (0.33 ≤ rS < 0.67, p < 0.001). Baseline global EP score and EDSS were highly significant predictors (p < 0.0001) of EDSS progression 6 years later. The aseline global EP score was found to be an independent predictor of the EDSS annual progression rate (p < 0.001), and of the risk of disability progression over time (p < 0.005). Based on a ROC curve determination, we defined a Global EP Score cut off point (17/30) to identify patients at high risk of disability progression illustrated by a positive predictive value of 70 %.
This study provides a proof of the concept that electrophysiology could be added to MRI and used as another complementary prognostic tool in MS patients.
Researchers ; Professionals
http://hdl.handle.net/2268/198268
10.1186/s12883-016-0608-1

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