Comparison Of The Hemodynamic Effects In Acute Intoxication With Racemic Bupivacaine And With 50% Enantiomeric Excess Mixture (s75-r25). An Experimental Study In Dogs [comparação Entre Os Efeitos Hemodinâmicos Da Intoxicação Aguda Com Bupivacaína Racêmica E A Mistura Com Excesso Enatiomérico De 50% (s75-r25). Estudo Experimental Em Cães]

dc.creatorUdelsmann A.
dc.creatorMunhoz D.C.
dc.creatorSilva W.A.
dc.creatorDe Moraes A.C.
dc.creatorMarcondes G.
dc.date2006
dc.date2015-06-30T18:05:41Z
dc.date2015-11-26T14:22:49Z
dc.date2015-06-30T18:05:41Z
dc.date2015-11-26T14:22:49Z
dc.date.accessioned2018-03-28T21:24:44Z
dc.date.available2018-03-28T21:24:44Z
dc.identifier
dc.identifierRevista Brasileira De Anestesiologia. , v. 56, n. 4, p. 391 - 401, 2006.
dc.identifier347094
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-33748578366&partnerID=40&md5=13f928b2435aa81e26c6077cccfbb2ef
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/103061
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/103061
dc.identifier2-s2.0-33748578366
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1244937
dc.descriptionBACKGROUND AND OBJECTIVES: Racemic bupivacaine has been widely used in locoregional anesthesia due to the quality and duration of its anesthetic action. However, its cardiovascular toxicity has worried anesthesiologists for a long time, and new options have been sought. One of them is the use of its levorotatory isomer that, due to a lesser affinity for the sodium channel receptors in the cardiac cell, would be less toxic. The presentation containing 75% of the levorotatory isomer and 25% of the dextrorotatory isomer, named 50% enantiomeric excess mixture (S75-R25), is available in our country. The objective of this study was to compare the hemodynamic effects of the acute intoxication with racemic bupivacaine and with the S75-R25 mixture in animals. METHODS: Forty-four dogs were anesthetized with pentobarbital, intubated and placed on mechanical ventilation. Hemodynamic monitorization was accomplished with a Swan-Ganz catheter and intra-arterial blood pressure measurements. After a period of rest, they were randomly and blindly divided in two groups, according to the intoxication with either agent at a dose of 5 mg.Kg -1. Hemodynamic data were collected during 30 minutes and analyzed statically to allow for the comparison of both agents. RESULTS: The mixture S75-R25 had more hemodynamic repercussions causing, especially, a significant reduction of the mean arterial pressure, cardiac index, and the left ventricle work index. CONCLUSIONS: These results contradict those found in human beings regarding the pure levorotatory isomer, but confirm recent animal studies. One must be very careful when extrapolating data to human beings. Further studies involving larger samples and more homogeneous groups are necessary. © Sociedade Brasileira de Anestesiologia, 2006.
dc.description56
dc.description4
dc.description391
dc.description401
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dc.languagept
dc.languageen
dc.publisher
dc.relationRevista Brasileira de Anestesiologia
dc.rightsfechado
dc.sourceScopus
dc.titleComparison Of The Hemodynamic Effects In Acute Intoxication With Racemic Bupivacaine And With 50% Enantiomeric Excess Mixture (s75-r25). An Experimental Study In Dogs [comparação Entre Os Efeitos Hemodinâmicos Da Intoxicação Aguda Com Bupivacaína Racêmica E A Mistura Com Excesso Enatiomérico De 50% (s75-r25). Estudo Experimental Em Cães]
dc.typeArtículos de revistas


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