Nerve conduction studies of median nerve in normal subjects
Abstract
Objective: To establish the normal electrophysiological values of the median nerve in normal healthy adult subjects.
Material and Methods: Nerve conduction study was performed on the median nerve of 100 screened healthy adult volunteers using standard electrophysiological techniques.
Results: One-hundred subjects (50 males and 50 females) participated in the study. The mean age of the subjects was 35.3 years. The median motor nerve showed a mean (± SD) conduction velocity of 58.01 (± 3.66) m/s, distal latency (DL) 3.6 (± 0.4) ms and amplitude10.72 (± 3.07) mv. The median sensory nerve showed a mean (± SD) conduction velocity of 59.8 (± 4.11) m/s, distal peak latency 3.08 (± 0.19) ms, distal initial latency 2.45 (± 0.19) ms, and amplitude 42.74 (± 14.69) μV. There was a significant difference in median F-wave latency between males and females.
Conclusion: This study established the normative conduction parameters of the median nerve for our electrodiagnostic laboratory, Songklanagarind Hospital.
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