| MAC of desflurane in 60% nitrous oxide in infants and children. | |
MedLine Citation:
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PMID: 1539844 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Desflurane, an inhaled anesthetic, may be useful for outpatient procedures in pediatric patients because its blood solubility (similar to that of nitrous oxide and less than that of commercially available potent inhaled anesthetics) may facilitate emergence and recovery from anesthesia. Although the MAC of desflurane without nitrous oxide has been determined in pediatric patients, it is likely that clinicians will administer desflurane with nitrous oxide. To determine the potency of desflurane administered with 60% nitrous oxide in pediatric patients, the authors determined the minimum alveolar concentration that prevents movement in 50% of subjects (MAC) in 12 infants aged 17 weeks-12 months and 12 children aged 1-5 yr. Anesthesia was induced with desflurane in oxygen; nitrous oxide was not administered during induction of anesthesia to minimize the likelihood of hypoxia if laryngospasm occurred. Following tracheal intubation, nitrous oxide and desflurane were administered and maintained at target concentrations for a minimum of 10 min before surgical incision. No additional anesthetic, sedative/hypnotic, or analgesic drugs were administered prior to incision. Following surgical incision, anesthesia was maintained with nitrous oxide, desflurane, and fentanyl, 4 +/- 1 micrograms/kg (mean +/- SD). MAC, determined using a modification of Dixon's "up-and-down" technique, was 7.5 +/- 0.1% (mean +/- SE) for infants and 6.4 +/- 0.2% for children; similar values were obtained using logistic regression (7.5 +/- 0.01% and 6.3 +/- 0.03%, respectively). Time from discontinuation of anesthesia to eye-opening and tracheal extubation was 5.4 +/- 3.6 min (mean +/- SD).(ABSTRACT TRUNCATED AT 250 WORDS) |
Authors:
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D M Fisher; M S Zwass |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Anesthesiology Volume: 76 ISSN: 0003-3022 ISO Abbreviation: Anesthesiology Publication Date: 1992 Mar |
Date Detail:
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Created Date: 1992-04-02 Completed Date: 1992-04-02 Revised Date: 2006-11-15 |
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: 354-6 Citation Subset: AIM; IM |
Affiliation:
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Department of Anesthesia, University of California, San Francisco 94143-0648. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anesthesia, Inhalation* Child, Preschool Humans Infant Isoflurane / administration & dosage, analogs & derivatives* Nitrous Oxide / administration & dosage* |
| Chemical | |
Reg. No./Substance:
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10024-97-2/Nitrous Oxide; 26675-46-7/Isoflurane; 57041-67-5/desflurane |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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