F Weber1. 1. Department of Neurology, Clinical Neurophysiology, Military Hospital, Ulm/Donau, Germany.
Abstract
OBJECTIVE: To examine the relative diagnostic sensitivity of various F wave parameters. METHODS: Normal values for minimum, mean, and maximum F wave latency, chronodispersion, and persistence in the four major motor nerves were established and systematically applied to at least four separate categories of patients (radiculopathies, polyneuropathies, mononeuropathies, and others). F Waves were studied both isolated and in comparison with other motor nerve conduction parameters. RESULTS: F Chronodispersion was the most often abnormal parameter, particularly in lumbosacral radiculopathies. Minimum F wave latency was more useful in polyneuropathies. Compared with minimum F wave latency, F chronodispersion was able to identify most additional cases. CONCLUSIONS: F Wave studies should include minimum F wave latency and chronodispersion.
OBJECTIVE: To examine the relative diagnostic sensitivity of various F wave parameters. METHODS: Normal values for minimum, mean, and maximum F wave latency, chronodispersion, and persistence in the four major motor nerves were established and systematically applied to at least four separate categories of patients (radiculopathies, polyneuropathies, mononeuropathies, and others). F Waves were studied both isolated and in comparison with other motor nerve conduction parameters. RESULTS: F Chronodispersion was the most often abnormal parameter, particularly in lumbosacral radiculopathies. Minimum F wave latency was more useful in polyneuropathies. Compared with minimum F wave latency, F chronodispersion was able to identify most additional cases. CONCLUSIONS: F Wave studies should include minimum F wave latency and chronodispersion.
Authors: G R Sathya; N Krishnamurthy; Susheela Veliath; Jayanthi Arulneyam; J Venkatachalam Journal: Indian J Med Res Date: 2017-03 Impact factor: 2.375