| Processed Electroencephalogram Response of Patients Undergoing Carotid Endarterectomy: A Pilot Study. | |
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MedLine Citation:
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PMID: 21705189 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: A risk during carotid endarterectomy (CEA) is cerebral ischemia as a result of clamping of the carotid artery. The Cerebral State Monitor is one of several electroencephalogram monitors that reflects level of consciousness of patients during anesthesia. The monitor reports level of consciousness with the empirical parameter Cerebral State Index (CSI) on a 0-100 scale. In this patient-controlled prospective pilot study, we compared the CSI measured from the surgical and control hemispheres of patients undergoing CEA surgery to determine whether the parameter is affected by presumed changes in cerebral blood flow. METHODS: Fifteen consenting CEA patients entered this institutionally approved study. We connected a separate Cerebral State Monitor to the left and right sides of the patient's head and recorded CSI intraoperatively. We compared the control-side data with the surgical-side data. RESULTS: Clamping caused the surgical-side CSI to drop below the control-side CSI. Shunt activation caused the CSI to rise above the control. The greatest difference between the surgical-side CSI and control-side CSI occurred at the completion of the CEA procedure. These observed trends were not statistically significant in this pilot project. CONCLUSION: Our preliminary results suggest that the CSI, and perhaps other similar indexes, may indicate changes in cerebral blood flow acutely during CEA. Our findings lend promise to a new use for these types of electroencephalogram monitors, which are prevalent in operating rooms today. |
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Authors:
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Monica Skordilis; Nicole Rich; Adolfo Viloria; Galina Dimitrova; Sergio Bergese; Roger Dzwonczyk |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-24 |
Journal Detail:
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Title: Annals of vascular surgery Volume: - ISSN: 1615-5947 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8703941 Medline TA: Ann Vasc Surg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Annals of Vascular Surgery Inc. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Anesthesiology, The Ohio State University, Columbus, OH. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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