Document Detail

Estimation of arterial CO2 partial pressure by measurement of tracheal CO2 during high-frequency jet ventilation in patients with a laryngectomy.
MedLine Citation:
PMID:  9522132     Owner:  NLM     Status:  MEDLINE    
Tracheal and arterial CO2 partial pressures were measured simultaneously in 27 laryngectomized patients both while they were awake and during high-frequency jet ventilation. Tracheal gas was sampled during brief interruptions of high-frequency jet ventilation. Agreement between tracheal and arterial CO2 partial pressures was assessed using the Bland-Altman method. The tracheal-arterial CO2 partial pressures gradient during spontaneous breathing was significantly lower (P < 0.0002) than during high-frequency jet ventilation. During spontaneous ventilation, the bias was -0.77 kPa (95% CI = -0.99 to -0.55 kPa), and the upper and lower limits of agreement were 0.29 kPa (95% CI = -0.11 to -0.7 kPa) and -1.83 kPa (95% CI = -2.24 to -1.43 kPa). During high-frequency jet ventilation, the bias was -1.61 kPa (95% CI = -1.76 to -1.46 kPa), and the limits of agreement were -0.48 kPa (95% CI = -0.75 to -0.21 kPa) and -2.74 kPa (95% CI = -3.01 to -2.47 kPa). Despite the poor agreement between tracheal CO2 partial pressure and arterial CO2 partial pressure, it is sufficient to allow for adjustment of ventilator settings during jet ventilation.
V Novak-Janković; V Paver-Erzen; I Fajdiga; J G Bovill; A Manohin; M Zargi
Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  European journal of anaesthesiology     Volume:  15     ISSN:  0265-0215     ISO Abbreviation:  Eur J Anaesthesiol     Publication Date:  1998 Jan 
Date Detail:
Created Date:  1998-05-21     Completed Date:  1998-05-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8411711     Medline TA:  Eur J Anaesthesiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1-5     Citation Subset:  IM    
Clinical Department of Anaesthesiology and Intensive Therapy, University Medical Centre Ljubljana, Slovenija.
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MeSH Terms
Blood Gas Analysis
Carbon Dioxide / blood*
High-Frequency Jet Ventilation*
Middle Aged
Trachea / metabolism*
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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