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Article: Value of somatosensory evoked potentials in diagnosis, surgical monitoring and prognosis of cervical spondylotic myelopathy

TitleValue of somatosensory evoked potentials in diagnosis, surgical monitoring and prognosis of cervical spondylotic myelopathy
Authors
Issue Date2008
PublisherZhonghua Yixuehui. The Journal's web site is located at http://www.cmj.org/
Citation
Chinese Medical Journal, 2008, v. 121 n. 15, p. 1374-1378 How to Cite?
Abstract
Background: The value of somatosensory evoked potentials (SEPs) in the diagnosis and prognosis of cervical spondylotic myelopathy, as well as the usefulness of monitoring intraoperative potentials in terms of safety and predictive factors were investigated. Methods: Each of the 76 myelopathic patients underwent surgical intervention. According to the wave configurations of the SEPs, the cases were categorised into four groups: Type I, II, III and IV. The clinical myelopathy disability was classified and the severity of neurological deficits was scored. Clinical function after surgery was evaluated. Preoperative potentials and intraoperative monitoring were categorized. The correlations between evoked potentials detection, monitoring, myelopathy disability and surgical outcome in the different groups were discussed. Results: According to the configurations of the SEPs, there were 27 patients (36%) of Type I, 30 patients (39%) of Type II, 8 patients (11%) of Type III, and 11 patients (14%) of Type IV. The categorised evoked potentials were shown to be significantly associated with the clinical representation of myelopathy (P <0.01) and the recovery rate from identifiable SEPs waves (groups A, B and C) was significantly higher than unidentifiable waves (group D, P <0.01). A deterioration of SEPs was detected in 23 cases (30%), whereas there was no change in 40 cases (53%) and improvements in 13 cases (17%). A significant difference in recovery rates could be observed in various monitoring groups within the short-term follow-up period, while there were no obvious differences in the long-term follow-up groups. Conclusions: SEP technique is a valuable and practical tool for the diagnosis, monitoring and prognosis of myelopathy. Classified evoked potentials are well correlated with cervical spondylotic myelopathy disability, and unidentifiable SEPs waves in patients are indicative of a relatively poor outcome. In addition, intraoperative monitoring of SEPs plays an important role in protecting neural structures during cervical spine surgery.
Persistent Identifierhttp://hdl.handle.net/10722/170132
ISSN
2013 Impact Factor: 1.016
2013 SCImago Journal Rankings: 0.433
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDing, Yen_US
dc.contributor.authorHu, Yen_US
dc.contributor.authorRuan, DKen_US
dc.contributor.authorChen, Ben_US
dc.date.accessioned2012-10-30T06:05:29Z-
dc.date.available2012-10-30T06:05:29Z-
dc.date.issued2008en_US
dc.identifier.citationChinese Medical Journal, 2008, v. 121 n. 15, p. 1374-1378en_US
dc.identifier.issn0366-6999en_US
dc.identifier.urihttp://hdl.handle.net/10722/170132-
dc.description.abstractBackground: The value of somatosensory evoked potentials (SEPs) in the diagnosis and prognosis of cervical spondylotic myelopathy, as well as the usefulness of monitoring intraoperative potentials in terms of safety and predictive factors were investigated. Methods: Each of the 76 myelopathic patients underwent surgical intervention. According to the wave configurations of the SEPs, the cases were categorised into four groups: Type I, II, III and IV. The clinical myelopathy disability was classified and the severity of neurological deficits was scored. Clinical function after surgery was evaluated. Preoperative potentials and intraoperative monitoring were categorized. The correlations between evoked potentials detection, monitoring, myelopathy disability and surgical outcome in the different groups were discussed. Results: According to the configurations of the SEPs, there were 27 patients (36%) of Type I, 30 patients (39%) of Type II, 8 patients (11%) of Type III, and 11 patients (14%) of Type IV. The categorised evoked potentials were shown to be significantly associated with the clinical representation of myelopathy (P <0.01) and the recovery rate from identifiable SEPs waves (groups A, B and C) was significantly higher than unidentifiable waves (group D, P <0.01). A deterioration of SEPs was detected in 23 cases (30%), whereas there was no change in 40 cases (53%) and improvements in 13 cases (17%). A significant difference in recovery rates could be observed in various monitoring groups within the short-term follow-up period, while there were no obvious differences in the long-term follow-up groups. Conclusions: SEP technique is a valuable and practical tool for the diagnosis, monitoring and prognosis of myelopathy. Classified evoked potentials are well correlated with cervical spondylotic myelopathy disability, and unidentifiable SEPs waves in patients are indicative of a relatively poor outcome. In addition, intraoperative monitoring of SEPs plays an important role in protecting neural structures during cervical spine surgery.en_US
dc.languageengen_US
dc.publisherZhonghua Yixuehui. The Journal's web site is located at http://www.cmj.org/en_US
dc.relation.ispartofChinese Medical Journalen_US
dc.subject.meshAgeden_US
dc.subject.meshEvoked Potentials, Somatosensoryen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshMonitoring, Intraoperativeen_US
dc.subject.meshPrognosisen_US
dc.subject.meshSpinal Osteophytosis - Diagnosis - Physiopathology - Surgeryen_US
dc.titleValue of somatosensory evoked potentials in diagnosis, surgical monitoring and prognosis of cervical spondylotic myelopathyen_US
dc.typeArticleen_US
dc.identifier.emailHu, Y:yhud@hku.hken_US
dc.identifier.authorityHu, Y=rp00432en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid18959112en_US
dc.identifier.scopuseid_2-s2.0-51349136202en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-51349136202&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume121en_US
dc.identifier.issue15en_US
dc.identifier.spage1374en_US
dc.identifier.epage1378en_US
dc.identifier.isiWOS:000258421300007-
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridDing, Y=37044095200en_US
dc.identifier.scopusauthoridHu, Y=7407116091en_US
dc.identifier.scopusauthoridRuan, DK=7004456354en_US
dc.identifier.scopusauthoridChen, B=26642888800en_US

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