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  • Title: Brain stem auditory evoked potentials and blink reflexes in quiescent multiple sclerosis.
    Author: Lacquaniti F, Benna P, Gilli M, Troni W, Bergamasco B.
    Journal: Electroencephalogr Clin Neurophysiol; 1979 Nov; 47(5):607-10. PubMed ID: 91488.
    Abstract:
    Brain stem auditory evoked potentials (BAEP) and blink reflexes (BR) were studied in 25 patients with multiple sclerosis (MS), the diagnosis being definite according to McAlpine's criteria, in the quiescent phase, without signs of brain stem involvement. BAEP abnormalities were found in 64% of the cases and BR abnormalities in 60%. A good correlation between the two tests was found in most patients. The abnormalities consisted of delayed latencies and/or high intraindividual variability in shape and latency of BAEP and BR components. It seems that demyelination of brain stem pathways results not only in conduction slowing but also in more serious dysfunction of the generators of the evoked components.
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