| Transient bilateral brainstem dysfunction caused by topical administration of papaverine. | |
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MedLine Citation:
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PMID: 21721877 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Papaverine has been associated with transient cranial nerve dysfunction after topical application during craniotomy. The authors report similar dysfunction after the use of papaverine affected brainstem structures. Two patients undergoing craniotomy for clipping of an aneurysm experienced bilateral depression of cortical somatosensory evoked potentials to both median and tibial nerve stimulation after administration of papaverine. Arterial blood gas analysis, hemodynamic parameters, and anesthetic levels remained constant throughout these somatosensory evoked potential changes. In addition, intraoperative angiography and immediate postoperative CT imaging showed intact blood flow with complete exclusion of the aneurysm. Both patients recovered within 1-2 hours and had normal neurological examination findings after extubation. Topical papaverine use may be associated with direct effects on brainstem structures. The transient nature of those changes suggests that aggressive intervention may not be needed. Maneuvers to limit the spread of papaverine to basal cisterns should be considered. |
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Authors:
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Colleen M Moran; Michael E Mahla; Brett Reichwage; Stephen Lewis; Keith Peters; Christoph N Seubert |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-1 |
Journal Detail:
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Title: Journal of neurosurgery Volume: - ISSN: 1933-0693 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-4 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0253357 Medline TA: J Neurosurg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Departments of Anesthesiology. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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