JOEM: Evaluation of Hand-Arm Vibration Syndrome Owing to Nerve Conduction Study and Cumulative Exposure Index -A 2.5-year Cohort Study (August 2024)-Evaluation of Hand-Arm Vibration Syndrome Owing to Nerve Conduction Study and Cumulative Exposure Index -A 2.5-year Cohort Study

Evaluation of Hand-Arm Vibration Syndrome Owing to Nerve Conduction Study and Cumulative Exposure Index -A 2.5-year Cohort Study

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The study aimed to investigate the relationship between hand-arm vibration syndrome (HAVS) and cumulative exposure index using nerve conduction study (NCS). Participants were divided into groups based on past and current vibration exposure. Results showed that median and ulnar sensory nerve conduction velocities and sensory nerve action potential (SNAP) amplitudes were significantly lower in groups with high past and current exposure compared to nonexposure groups. The study revealed potential peripheral nerve lesions in vibration tool handlers without subjective symptoms. The findings suggest that SNAP amplitudes may be early indicators of vibration-induced peripheral neuropathies. The study highlights the importance of monitoring vibration exposure and conducting NCS for early detection in workers handling vibratory tools. Limitations include recall bias, lack of specific information on types of vibratory tools handled, and potential type 2 error due to a small sample size and short follow-up period. Further research and preventive measures may help address hand-arm vibration hazards in the workplace and improve health management for workers exposed to vibration.

Keywords

hand-arm vibration syndrome

cumulative exposure index

nerve conduction study

vibration exposure

sensory nerve conduction velocities

sensory nerve action potential

peripheral nerve lesions

vibration-induced peripheral neuropathies

vibratory tools

health management