HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Correspondence: Submit a response Alert me when this article is cited Alert me when Correspondence are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Synek, V. M. Articles by Cowan, J. C. Search for Related Content PubMed PubMed Citation Articles by Synek, V. M. Articles by Cowan, J. C.

Somatosensory evoked potentials in patients with supraclavicular brachial plexus injuries

Department of Clinical Neurophysiology, Auckland Hospital, Auckland. New Zealand.

In 12 patients with traumatic lesions of brachial plexus, we studied somatosensory evoked potentials by stimulation of median, radial, and ulnar nerves at the wrist and by recording at the arm, Erb point, cervical spinal cord, and contralateral cortex. Results after median nerve stumulation in patients with upper trunk lesions were normal. Patients with C5/6 root avulsion had either normal, delayed, or absent responses at the cervical cord and cortex, depending on the presence of complicating distal lesions. In patients with particular involvement of C7 root, results were normal after median and ulnar stimulation but were abnormal after radial nerve stimulation. In patients with multiple root avulsions and flail anesthetic arm, no potentials could be recorded from the cervical cord or contralateral cortex, regardless of which nerve was stimulated. For relevant information, it was important to stimulate nerves having roots near the anatomic site of the lesion as determined clinically and electromyographically.

Address correspondence and reprint requests to Dr. Synek, Department of Clinical Neurophysiology, Auckland Hospital, Auckland, New Zealand.

Accepted for publication May 13. 1982.

This article has been cited by other articles:

				D. G. Kline, E. R. Hackett, and L. H. Happel Surgery for Lesions of the Brachial Plexus Arch Neurol, February 1, 1986; 43(2): 170 - 181. [Abstract] [PDF]