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EDX Reference Values for Upper & Lower Limb NCS in ...
EDX Reference Values for Upper & Lower Limb NCS in Adult Populations
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The Normative Data Task Force (NDTF) conducted a comprehensive literature search to identify nerve conduction studies (NCS) suitable for use as a resource for NCS metrics. Over 7,500 articles were found and after review using consensus-based criteria, only one study each met all quality criteria for ten nerves. The studies selected by the NDTF were considered suitable as a clinical resource for NCS metrics, however, the findings should be confirmed by larger, multicenter collaborative efforts. Electrodiagnostic testing is used extensively to diagnose neuromuscular disorders, but a universal standard for NCS is not available. The NDTF was formed to establish evidence-based criteria for NCS and to identify reference values for commonly tested nerves in adult populations. The NDTF selected studies that had sample sizes of over 100 healthy subjects and had the required quality criteria. The selected studies provide reference values for sensory and motor nerve conduction studies in the upper and lower limbs. The studies considered the effects of age, gender, and other factors on NCS parameters. The NDTF's review provides standardized techniques for conducting NCS and includes machine settings and electrode placements. The selected studies provide reference values for sensory and motor nerve parameters such as amplitude, latency, and conduction velocity for commonly tested nerves. The NDTF suggests that future studies should address reference values for less commonly tested nerves and include studies on pediatric populations.
Keywords
Normative Data Task Force
nerve conduction studies
NCS metrics
electrodiagnostic testing
neuromuscular disorders
reference values
sensory nerve conduction studies
motor nerve conduction studies
age and gender effects
standardized techniques
ncs
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