Developing Normative Reference Values for Nerve Conduction Studies Using Electrophysiological Parameters in the...

This study aims to establish normative reference values for nerve conduction studies specific to the Bangladeshi population. Data were collected from 258 healthy subjects, grouped by age and sex. Both motor and sensory nerves of the upper and lower limbs were assessed. Using the ordinary least square (OLS) regression method, it is seen that for the left median motor nerve, the mean distal latency is 3.01 ± 0.34 ms, amplitude 18.05 ± 4.73 μV, and conduction velocity 59.67 ± 6.64 m/s. For the left median sensory nerve, the latency is 2.30 ± 0.25 ms, the amplitude is 60.82 ± 23.95 μV, and the velocity is 55.87 ± 4.48 m/s. The findings of this study were compared with previously published international data, revealing significant differences. These results provide neurophysicians with population-specific reference values, enhancing diagnostic accuracy, enabling earlier detection of nerve conduction abnormalities, and guiding more targeted and effective treatment strategies for nerve disorders in Bangladesh.