How do age, height and limb length affect the results of somatosensory evoked potentials (SEPs) after median nerve stimulation?

Updated: Oct 25, 2019
  • Author: Andrew B Evans, MD; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Answer

Vaney et al, in a study examining the role of physical parameters (including height, age, and upper limb length) in relation to the median nerve SEP, concluded that SEP studies might be affected by such parameters. [41] The authors recorded SEPs after median nerve stimulation and identified the following 3 major positive and negative peaks:

  • P1 (16 msec), N1 (20 msec)

  • P2 (28 msec), N2 (33 msec)

  • P3 (43 msec), N3 (50 msec)

N1 and P1 were correlated significantly with height and limb length.


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