| Respiratory and cardiovascular effects of halothane, isoflurane and enflurane delivered via a Jackson-Rees breathing system in temperature controlled and uncontrolled rats. | |
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MedLine Citation:
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PMID: 3448450 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We studied the respiratory and cardiovascular effects of 1.25 MAC halothane, isoflurane and enflurane in oxygen delivered via the Jackson-Rees breathing system in 10 rats. Mean arterial pressure, heart rate and respiratory rate were depressed significantly (P less than 0.05) in rats (n = 5) whose body temperature was not controlled after 2 hr of anesthesia regardless of the inhalational agent. Respiratory and metabolic acidosis developed. The respiratory and cardiovascular depression was most marked under enflurane anesthesia. In normothermic rats (n = 5) the initial cardiovascular depression stabilized after 30 min of halothane and isoflurane anesthesia. Moderate respiratory depression developed (PCO2 48.42 +/- 2.48 torr with halothane vs. 41.02 +/- 1.68 torr with isoflurane). Because the cardiovascular and respiratory changes caused by halothane and isoflurane were far less than changes produced by enflurane, halothane or isoflurane is preferable to enflurane for maintaining anesthesia in rats. Maintenance of constant temperature minimizes the cardiovascular and respiratory disturbances. |
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Authors:
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E Dardai; J E Heavner |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Methods and findings in experimental and clinical pharmacology Volume: 9 ISSN: 0379-0355 ISO Abbreviation: Methods Find Exp Clin Pharmacol Publication Date: 1987 Nov |
Date Detail:
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Created Date: 1988-05-27 Completed Date: 1988-05-27 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7909595 Medline TA: Methods Find Exp Clin Pharmacol Country: SPAIN |
Other Details:
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Languages: eng Pagination: 717-20 Citation Subset: IM |
Affiliation:
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Department of Surgery, Semmelweis University of Medicine, Budapest, Hungary. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anesthesia, Inhalation
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instrumentation* Animals Blood Pressure / drug effects Body Temperature Enflurane / pharmacology* Halothane / pharmacology* Heart Rate / drug effects Hemodynamics / drug effects* Isoflurane / pharmacology* Male Rats Rats, Inbred Strains Respiration / drug effects* |
| Chemical | |
Reg. No./Substance:
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13838-16-9/Enflurane; 151-67-7/Halothane; 26675-46-7/Isoflurane |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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