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Ann Clin Neurophysiol > Volume 2(1); 2000 > Article
Ann Clin Neurophysiol. 2000; 2(1): 21-26.
Sensory Nerve Conduction Velocity of Median Proper Palmar Digital Nerve Recorded by Bar Electrode
Kyu Ho Kwak, and Dong Kuck Lee
Copyright © 2000 The Korean Society of Clinical Neurophysiology
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
and others underwent flash goggle VEPs. Results : Brain imaging were abnormal in 29 and were normal in 2. Of the 29 abnormal scans, lesions in posterior visual pathway were detected in 21 scans(predictive value=68%). The predictive value ws not significantly different between flash goggle VEP(75%) and pattern reversal VEP(68%). The predictive value was higher in patient with visual field defect(100%) than those without visual field defect(25%). The pathologic nature of lesion also showed close relations to the predictive value. VEPs is usually paradoxically lateralized(78%), but in all patients. Conclusion : VEPs abnormalities suggesting retrochiasmal lesion were usually corresponded with brain MRI findings. Diagnostic reliability could be increased when considering the visual field defect and nature of lesion. Therefore, the authors suggest that VEPs studies could be useful in evaluating the patients with the retrochismal lesion.
Key words: Madian proper palmar digital nerve, Carpal tunnel syndrome, Bar electrode
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