期刊
JOURNAL OF THE NEUROLOGICAL SCIENCES
卷 190, 期 1-2, 页码 29-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-510X(01)00563-9
关键词
cerebrotendinous xanthomatosis; chenodeoxycholic acid; evoked potentials; nerve conduction velocities
We report the electrophysiological follow-up of five cerebrotendinous xanthomatosis patients treated for I I years with chenodeoxycholic acid (CDCA). Nerve conduction velocity (NCV) was reduced in three cases. P100 latency of visual evoked potentials was delayed in four cases, interpeaks I-III and I-V of brainstem. auditory evoked potentials (BAEPs) was increased in two and interpeak N13-20 of upper limb somatosensory evoked potentials (SEPs) was slowed in one. After 4 months of therapy with CDCA, NCV was normal and did not show any significant change during the 11 years of observation. Central motor conduction time of motor evoked potentials (MEPs) and N24-P40 interpeak latency of lower limb SEPs were increased in five and four cases, respectively, in spite of 2/3-year treatment with CDCA. Improvement of evoked potentials, especially of MEPs and SEPs, was slower and continued over the whole 11-year period. The size of xanthomas slightly decreased in some patients during treatment and the clinical manifestations stabilized, avoiding progressive worsening, but there was no significant improvement in neurological deficit. Two sisters of patients who never took CDCA showed progressive worsening of clinical manifestations, upper limb SEPs and BAEPs. (C) 2001 Published by Elsevier Science B.V.
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