Document Detail


Use of the laryngeal mask for closed circuit anesthesia.
MedLine Citation:
PMID:  8987039     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined whether the laryngeal mask could be used effectively in 70 patients breathings spontaneously during closed-circuit anesthesia. After administration of oxygen 101.min-1, anesthesia was induced and the laryngeal mask inserted. After 6 min of denitrogenation (3.51.min-1 nitrous oxide and 1.51.min-1 oxygen), the fresh-gas flow was decreased to the minimum required to maintain refilling of a ventilator bellows (Carden Ventmasta); nitrous oxide was turned off. A vaporiser outside the breathing system was set either by observing an end-tidal agent monitor or at 3-5 times greater than the required end-tidal concentration. The total fresh gas flow, hemodynamics and respiratory variables were monitored. Several types of operations were performed and lasted 9-126 min (mean 37 min). The average total fresh gas flow during the closed circuit period was 340 ml.min-1 (range 200-500 ml.min-1). Blood pressure, heart rate and respiration were stable throughout anesthesia and there were no major side effects attributable to the technique. We believe that closed-circuit anesthesia in patients breathing spontaneously through the laryngeal mask, as described here, can be used safely, conveniently and effectively. This technique is suitable for surgical operations of short duration.
Authors:
M R Stacey; S Morris; T Asai
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Middle East journal of anaesthesiology     Volume:  13     ISSN:  0544-0440     ISO Abbreviation:  Middle East J Anaesthesiol     Publication Date:  1996 Oct 
Date Detail:
Created Date:  1997-03-19     Completed Date:  1997-03-19     Revised Date:  2014-10-10    
Medline Journal Info:
Nlm Unique ID:  8604187     Medline TA:  Middle East J Anaesthesiol     Country:  LEBANON    
Other Details:
Languages:  eng     Pagination:  593-604     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Anesthesia, Closed-Circuit / instrumentation*,  methods
Anesthetics, Inhalation
Enflurane
Female
Humans
Isoflurane
Laryngeal Masks*
Male
Middle Aged
Monitoring, Physiologic
Chemical
Reg. No./Substance:
0/Anesthetics, Inhalation; 91I69L5AY5/Enflurane; CYS9AKD70P/Isoflurane

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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