Related Experiment Videos
Somatosensory evoked potentials from median nerve; normative data.
J Verroust1, A Blinowska, R Vilfrit
1Laboratoire d'Explorations Fonctionnelles Neurologiques, Hôp. H. Mondor, Créteil, France.
Electromyography and Clinical Neurophysiology
|January 1, 1990
Summary
This study analyzed median nerve somatosensory evoked potentials in 127 adults. Regression formulas were developed to predict normal values for nerve conduction parameters based on height and age.
Area of Science:
- Neuroscience
- Electrophysiology
Background:
- Somatosensory evoked potentials (SEPs) are crucial for assessing the integrity of the somatosensory nervous system.
- Understanding normative SEP values is essential for diagnosing neurological disorders.
Purpose of the Study:
- To analyze median nerve SEPs in a large adult cohort.
- To establish regression formulas for predicting normative SEP parameters based on anthropometric and demographic factors.
Main Methods:
- Studied 127 healthy adults aged 19-79 years.
- Recorded SEPs from median nerve stimulation, analyzing latencies of specific peaks (elbow, Erb's, N11, N13, N20, P25).
- Calculated central conduction times (N20-N11, N20-N13).
Main Results:
- Analyzed SEP latencies and central conduction times in relation to height and age.
- Developed regression formulae to predict normative SEP values.
- Provided standard error estimates for all analyzed parameters.
Conclusions:
- The derived regression formulae offer a reliable method for predicting normative SEP values across a broad range of heights and ages.
- These findings contribute to establishing updated reference ranges for clinical electrophysiological assessments.