Abstract
Short latency somatosensory evoked potentials (SEPs) were elicited by stimulation at the wrist of median, radial, and ulnar nerves, singly or in combination, using normal subjects. Amplitude of P10 was strikingly lower with radial stimulation than with median stimulation, while ulnar-derived P10 was intermediate in amplitude. This difference probably reflects the antidromic firing of motor fibers contained in median nerves as compared with the superficial branch of radial nerve, which is entirely sensory. Beyond P10, there appear to be no significant differences between median, radial and ulnar-derived SEPs. With simultaneous stimulation of several nerves within one arm, larger potentials were sometimes achieved but with poorer definition of P12 and P14. The clinical utility of radial, ulnar, and median stimulation for localizing peripheral lesions derives from the distinct anatomical pathways of the stimulated fibers through the brachial plexus and from the separable motor and sensory components of P10. SEP is less invasive than EMG; this fact, plus its freedom from sampling error, make it potentially more suitable than conventional EMG for sequentially following a patient's clinical course.
References
Nov 1, 1976·Electroencephalography and Clinical Neurophysiology·R Q Cracco, J B Cracco
Jan 1, 1977·Electroencephalography and Clinical Neurophysiology·G D GoffW R Goff
Apr 1, 1977·Electroencephalography and Clinical Neurophysiology·W C Wiederholt, V J Iragui-Madoz
Nov 1, 1978·Electroencephalography and Clinical Neurophysiology·B AnziskaE W Feld
Feb 1, 1979·Electroencephalography and Clinical Neurophysiology·J ArezzoH G Vaughan
Mar 1, 1978·Neurology·T YamadaM Powers
Jan 1, 1978·Annual Review of Neuroscience·A Starr
Mar 1, 1979·Journal of Neurology, Neurosurgery, and Psychiatry·W B MatthewsE Pountney
May 1, 1979·The Journal of Trauma·D M SealesM E Weinstein
Dec 1, 1979·Archives of Neurology·J B Green, S McLeod
Apr 1, 1977·Neurology·J J Stockard, V S Rossiter
Nov 1, 1978·Archives of Neurology·M Kritchevsky, W C Wiederholt
Jun 1, 1977·Annals of Neurology·V J Iragui-Madoz, W C Wiederholt
Oct 1, 1976·Archives of Neurology·J J StockardR M Kobayashi
Aug 1, 1980·Electroencephalography and Clinical Neurophysiology·B Anziska, R Q Cracco
Jan 1, 1981·Paraplegia·W Grüninger, K Ricker
Apr 1, 1980·Archives of Neurology·B J Anziska, R Q Cracco
Citations
Jan 1, 1991·Acta neurochirurgica·W A Dauch
Jun 1, 1985·Italian Journal of Neurological Sciences·F D'Alpa
Sep 16, 2006·Brain Topography·Peter J TheuvenetAndrew C N Chen
Apr 1, 1980·Electroencephalography and Clinical Neurophysiology·T YamadaD M Nitz
Aug 1, 1980·Electroencephalography and Clinical Neurophysiology·B Anziska, R Q Cracco
Oct 1, 1981·Electroencephalography and Clinical Neurophysiology·J E Desmedt, G Cheron
Dec 1, 1981·Electroencephalography and Clinical Neurophysiology·J E Desmedt, G Cheron
Apr 1, 1982·Electroencephalography and Clinical Neurophysiology·D BurkeN F Skuse
Jul 1, 1983·Electroencephalography and Clinical Neurophysiology·T NakanishiK Arasaki
Apr 1, 1985·Electroencephalography and Clinical Neurophysiology·P M RossiniP Stanzione
Oct 1, 1983·Journal of the Neurological Sciences·V M Synek
Feb 28, 1994·Neuroscience Letters·A P BaranowskiS B McMahon
May 20, 1982·The New England Journal of Medicine·K H Chiappa, A H Ropper
Jul 29, 1998·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·E K Lee, M Seyal
May 10, 2012·PloS One·Bimal LakhaniWilliam E McIlroy
May 1, 1989·Electroencephalography and Clinical Neurophysiology·Y T HallströmT S Prevec
Jan 1, 1991·Electroencephalography and Clinical Neurophysiology·Y OkajimaA Kimura
Jan 1, 1982·Annals of the New York Academy of Sciences·W C WiederholtK L McKeown
Jan 1, 1983·Neurological Research·R K SimpsonS Katz
Apr 1, 1996·Medicine and Science in Sports and Exercise·N G Thomas, D Mitchell
Jan 1, 1982·Annals of the New York Academy of Sciences·J E Desmedt, G Cheron
Jul 1, 1982·Annals of Neurology·J C ArezzoJ Barna