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I. Washington

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Publications by I. Washington (bibliography)

1994

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Washington, I., Shih, M., Burastero, S. and Tittiranonda, P. (1994): Reliability of the Nerve Conduction Monitor in Repeated Measures of Median and Ulnar Nerve Latencies. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. p. 991.

“In response to the growing number of reported cases of CTS, many companies have introduced screening tools to detect CTS in its early stages. Formal nerve conduction studies are considered the "gold standard" for CTS diagnoses, and abnormality in nerve function is considered one of the earliest indicators of a developing compression neuropathy. This study evaluates the reliability of a portable nerve conduction monitor (Nervepace S-200, Neurotron Medical, New Jersey) which measures both motor and sensory nerve latencies. This instrument's portability and ease of use have made it potentially attractive to health and safety officers interested in conducting active surveillance in the field. It may provide inexpensive, fast, and reliable results in settings where formal nerve conduction testing is infeasible. In this study, we examined the reliability of the portable monitor in measuring median and ulnar nerve latencies. All testing was performed by one operator on 25 volunteer subjects between the ages of 20 and 35,10 male and 15 female, who had no prior symptoms of CTS. The median motor, median sensory, ulnar motor, and ulnar sensory latencies of each subject were measured at the same time each day for three consecutive days. The results showed a high degree of intrarater reliability. No significant differences were found in latencies between days among any of the 4 groups of measurements (p < 0.05), and the coefficient of variation was less than 0.2 ms. for all measurements, with the variation being highest in motor latency measurements of the ulnar nerve.”

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