| Desflurane increases pulmonary alveolar-capillary membrane permeability after aortic occlusion-reperfusion in rabbits: evidence of oxidant-mediated lung injury. | |
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MedLine Citation:
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PMID: 9637647 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Pulmonary injury occurs after vascular surgery, with xanthine oxidase (an oxidant generator) released from reperfusing liver and intestines mediating a significant component of this injury. Because halogenated anesthetics have been observed to enhance oxidant-mediated injury in vitro, the authors hypothesized that desflurane would increase alveolar-capillary membrane permeability mediated by circulating xanthine oxidase after thoracic occlusion and reperfusion. METHODS: Rabbits were assigned to one of five groups: aorta occlusion groups administered desflurane (n=14), desflurane and tungstate (xanthine oxidase inactivator, n=12), fentanyl plus droperidol (n=13), and two sham-operated groups (desflurane, n=7 and fentanyl plus droperidol, n=7). Aortic occlusion was maintained for 45 min with a balloon catheter, followed by 3 h of reperfusion. Alveolar-capillary membrane permeability was assessed by measurement of bronchoalveolar lavage fluid protein. Xanthine oxidase activity was determined in plasma and lung tissue. Ascorbic acid content (an antioxidant) was determined in lung tissue. RESULTS: Desflurane was associated with significantly increased alveolar-capillary membrane permeability after aortic occlusion-reperfusion when compared with the fentanyl plus droperidol anesthesia or sham-operated groups (P < 0.05). Inactivation of xanthine oxidase abrogated the alveolar-capillary membrane compromise associated with desflurane. Although significantly greater than for sham-operated animals, plasma xanthine oxidase activities released after aortic occlusion-reperfusion were not different between the two anesthetics. There were no anesthetic-associated differences in lung tissue xanthine oxidase activity. However, desflurane anesthesia resulted in a significant reduction in lung ascorbic acid after aortic occlusion-reperfusion compared with the sham-operated animals. CONCLUSIONS: Desflurane anesthesia increased xanthine oxidase-dependent alveolar-capillary membrane compromise after aortic occlusion-reperfusion in concert with depletion of a key tissue antioxidant. |
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Authors:
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V G Nielsen; M S Baird; M L McAdams; B A Freeman |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Anesthesiology Volume: 88 ISSN: 0003-3022 ISO Abbreviation: Anesthesiology Publication Date: 1998 Jun |
Date Detail:
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Created Date: 1998-07-14 Completed Date: 1998-07-14 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 1300217 Medline TA: Anesthesiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1524-34 Citation Subset: AIM; IM |
Affiliation:
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Department of Anesthesiology, Center for Free Radical Biology, The University of Alabama at Birmingham, 35233-6810, USA. vance.nielsen@ccc.uab.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anesthetics, Inhalation
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pharmacology* Anesthetics, Intravenous / pharmacology Animals Capillary Permeability / drug effects* Droperidol / pharmacology Fentanyl / pharmacology Isoflurane / analogs & derivatives*, pharmacology Male Pulmonary Alveoli / blood supply, drug effects*, metabolism Rabbits Reperfusion Injury / etiology*, metabolism Xanthine Oxidase / blood |
| Grant Support | |
ID/Acronym/Agency:
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HL P01 48676/HL/NHLBI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Anesthetics, Inhalation; 0/Anesthetics, Intravenous; 26675-46-7/Isoflurane; 437-38-7/Fentanyl; 548-73-2/Droperidol; 57041-67-5/desflurane; EC 1.17.3.2/Xanthine Oxidase |
| Comments/Corrections | |
Comment In:
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Anesthesiology. 1998 Jun;88(6):1435-6
[PMID:
9637634
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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