| Cerebral microemboli during minimally invasive and conventional mitral valve operations. | |
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MedLine Citation:
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PMID: 11016385 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Intraoperative cerebral microembolism may cause postoperative neurologic damage. The aim of this study was to determine the frequency of cerebral microembolic signals (MES) during minimally invasive surgery (MIS) and conventional (conv.) mitral valve operations and to determine the association of MES with various stages of the operation. METHODS: Intraoperative computer-aided transcranial Doppler measurements were performed to detect cerebral microemboli in 21 patients undergoing MIS and in 14 patients undergoing conv. mitral valve operation. We calculated the mean embolic rate for three time periods: P1, start of the operation until aortic clamping; P2, aortic clamping until clamp removal; and P3, declamping until end of surgery. RESULTS: There was no significant difference in the total number of detected cerebral MES between both patient groups (MIS 1,014+/-753, conv. 937+/-519; NS). In both groups, the highest number of MES were detected during the third time period when the heart regained effective ejection (MIS 875+/-746, conv. 680+/-462; p > 0.5). CONCLUSIONS: Transcranial Doppler was useful to detect cerebral microemboli in MIS and conv. mitral valve operation. We found no increased risk of cerebral microembolism during the minimally invasive method compared with the conventional technique. |
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Authors:
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F Schneider; J F Onnasch; V Falk; T Walther; R Autschbach; F W Mohr |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Annals of thoracic surgery Volume: 70 ISSN: 0003-4975 ISO Abbreviation: Ann. Thorac. Surg. Publication Date: 2000 Sep |
Date Detail:
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Created Date: 2000-10-17 Completed Date: 2000-10-17 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 15030100R Medline TA: Ann Thorac Surg Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1094-7 Citation Subset: AIM; IM |
Affiliation:
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Department of Cardiac Surgery, Heartcenter, University of Leipzig, Germany. felix_schneider@hotmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cardiopulmonary Bypass Female Heart Valve Prosthesis Implantation / adverse effects* Humans Intracranial Embolism / etiology*, ultrasonography Intraoperative Complications Male Middle Aged Mitral Valve / surgery* Surgical Procedures, Minimally Invasive / adverse effects* Ultrasonography, Doppler, Transcranial |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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