Document Detail

Dissociation of somatosensory and motor evoked potentials in a patient with an intramedullary spinal tumor.
MedLine Citation:
PMID:  1291867     Owner:  NLM     Status:  MEDLINE    
We describe a patient with an intramedullary spinal tumor who demonstrated postoperative improvement of motor and sensory function despite the lack of somatosensory evoked potentials (SSEPs) before and after intraoperative monitoring. The motor system was evaluated by direct spinal cord stimulation across the tumor bed. The resultant evoked compound muscle action potentials and compound nerve activities were normal. Although there is sufficient clinical evidence that SSEPs are sensitive to posterior and posterolateral ischemic insults of the spinal cord, the technique should be employed with an awareness of its limitations in monitoring the descending tracts which have a different blood supply and occupy more anterior locations in the spinal cord.
S S Haghighi; D H York; J Ebeling; M K Gumerlock; J J Oro; R W Gaines
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Missouri medicine     Volume:  89     ISSN:  0026-6620     ISO Abbreviation:  Mo Med     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1993-04-01     Completed Date:  1993-04-01     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0400744     Medline TA:  Mo Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  790-4     Citation Subset:  IM    
Division of Neurosurgery, University of Missouri Hospital & Clinics, Columbia 65212.
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MeSH Terms
Arm / physiopathology
Ependymoma / physiopathology*
Evoked Potentials
Evoked Potentials, Somatosensory*
Leg / physiopathology
Middle Aged
Monitoring, Intraoperative
Muscles / physiopathology
Spinal Cord Neoplasms / physiopathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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