Document Detail


EEG changes during awake carotid endarterectomy.
MedLine Citation:
PMID:  11904797     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To determine the reason for differing shunt rates based on electroencephalographic (EEG) and neurologic changes during general and regional anesthetic, respectively, we compared simultaneous EEG tracings and neurologic status in 135 patients undergoing carotid endarterectomy (CEA) under cervical block over a 30-month period. The decision to shunt in these patients was made on the basis of neurologic changes only irrespective of EEG findings. This group was then compared to the 288 patients undergoing CEA under general anesthetic with EEG monitoring over the same period. EEG changes occurred in 7.4% of awake patients and 15.3% of asleep patients (p < 0.03). The rates of ipsilateral hemispheric changes were similar, but no awake patient manifested global EEG changes with clamping while 3.5% of patients under general anesthesia did (p < 0.04). Global, but not hemispheric, changes were correlated with systolic blood pressure variability during clamping. This implies that global EEG changes in anesthetized patients may be the result of the anesthetic technique itself, and that cervical block may in fact be cerebroprotective.
Authors:
Karl A Illig; Yaron Sternbach; Renyu Zhang; James Burchfiel; Cynthia K Shortell; Jeffrey M Rhodes; Mark G Davies; Sean P Lyden; Richard M Green
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2002-01-16
Journal Detail:
Title:  Annals of vascular surgery     Volume:  16     ISSN:  0890-5096     ISO Abbreviation:  Ann Vasc Surg     Publication Date:  2002 Jan 
Date Detail:
Created Date:  2002-03-25     Completed Date:  2002-10-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8703941     Medline TA:  Ann Vasc Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6-11     Citation Subset:  IM    
Affiliation:
Division of Vascular Surgery, University of Rochester Medical Center, NY 14642, USA. karl_illig@URMC.rochester.edu
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Anesthesia, General / methods*
Carotid Artery Diseases / surgery
Communication Disorders / etiology,  surgery
Consciousness Disorders / etiology,  surgery
Electroencephalography*
Endarterectomy, Carotid / adverse effects*,  methods*
Female
Humans
Male
Middle Aged
Monitoring, Intraoperative / methods*
Nerve Block / methods*
Neurologic Examination*
Paresis / etiology,  surgery
Retrospective Studies
Sensation Disorders / etiology,  surgery
Treatment Outcome

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


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