Cherniak, Martin G., MD; Daniel Moalli, MD; Catherine Viscolli, PhD
"In 49 patients (98 hands), referred to an electrodiagnostic laboratory, assessments were made by conventional nerve conduction studies on the upper extremity and by two more portable modalities, namely electroneurometry (skin surface electrical stimulation of the motor nerve) and single frequency (120 Hz) vibrometry. Tests were preformed on median and ulnar nerves. Correlations with motor nerve conduction studies for each screening test on the median nerve were r = .81 for the electroneurometer (nervepace Nerve Conduction Monitor) and r = .48 for the vibrometer. When carpal tunnel syndrome was diagnosed either by clinical criteria only or by nerve conduction abnormality, the association with electroneurometry was characterized by high sensitivity and low specificity, while the opposite relationship prevailed with vibrometry. These associations were highly dependent on the methods used to select normal values from a reference population."
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