[Instrumental diagnosis of multiple sclerosis: correlation between electrophysiologic and cerebrospinal fluid findings].
1984
: Since a few years the technique of evoked potentials (PE), both visual (VERs) and acoustic (BAERs), of the encephalic trunk has been introduced in the diagnosis of SM. The electrophysiologic data thus obtained are usefully completed by liquor's ones, often allowing a precocious diagnosis of this disease. In this work the authors compare the results of liquor analyses (dosage of the relation IgG/total proteins; electrophoretic research of Oligoclonic Bands) with those of the PE in 28 patients with suspect SM. The high positive percentages of BAERs (78.8%) and of VERs (90%) in certain multiple scleroses, as well as in suspect multiple scleroses (53.6% and 82.1% respectively), prove the high sensibility of these techniques. The positive percentages of liquor analysis appear to be slightly inferior as to those of evoked potentials, even if these differences are not statistically significant. Besides the authors noticed a high degree of accordance between PE and liquor anomalies (in the cases of defined SM the patients with altered liquor presented at least an altered PE).
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