Document Detail


The quality of breathing and capnography during laryngeal mask and facemask ventilation.
MedLine Citation:
PMID:  7485874     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Clinical measures of ventilation and the relationship between arterial and end-tidal carbon dioxide tensions were studied during inhalational anaesthesia in 18 patients using a laryngeal mask airway or a facemask. Tidal volumes were similar in both groups but expired minute volume, respiratory rate and physiological deadspace ventilation were significantly increased in the facemask group. Both end-tidal and arterial carbon dioxide tensions were higher in the laryngeal mask group. Mean arterial to end-tidal carbon dioxide tension differences ranged from 0.13 to 4.13 kPa in the facemask group and from 0-1.73 kPa with the laryngeal mask airway. Pooled data analysis revealed a better correlation between arterial and end-tidal carbon dioxide tensions during laryngeal mask ventilation as compared to facemask breathing. With both techniques the arterial to end-tidal carbon dioxide tension difference was related to respiratory rate and physiological deadspace ventilation. Estimation of arterial carbon dioxide partial pressure by monitoring end-tidal carbon dioxide tension is more reliable with the laryngeal mask airway than during facemask breathing, in particular at small tidal volumes.
Authors:
D Ivens; C Verborgh; H P Phan Thi; F Camu
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Anaesthesia     Volume:  50     ISSN:  0003-2409     ISO Abbreviation:  Anaesthesia     Publication Date:  1995 Oct 
Date Detail:
Created Date:  1995-12-20     Completed Date:  1995-12-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  858-62     Citation Subset:  AIM; IM    
Affiliation:
Department of Anesthesiology, Free University of Brussels.
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MeSH Terms
Descriptor/Qualifier:
Adult
Anesthesia, Inhalation / methods*
Carbon Dioxide / analysis*,  blood
Female
Humans
Laryngeal Masks
Male
Masks*
Middle Aged
Monitoring, Intraoperative
Partial Pressure
Respiration*
Chemical
Reg. No./Substance:
124-38-9/Carbon Dioxide

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


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