Document Detail


Evaluation of a mainstream capnometer and end-tidal carbon dioxide monitoring in mechanically ventilated infants.
MedLine Citation:
PMID:  2124347     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We evaluated a new lightweight capnometer with a less than 1 mL deadspace neonatal airway adapter and endotracheal tube connector unit (NAC) for use in mechanically ventilated neonates. The evaluation consisted of: 1) a bench test comparison of air flow resistance between the standard endotracheal tube and connector with the new NAC (flow rates, 1.5 to 12.8 L/min); 2) a determination of the effect of NAC placement on Paco2; 3) pre- and post-NAC pulmonary mechanics; and 4) analysis of paired PetCO2 and PACO2 in 16 infants requiring mechanical ventilation. Paired t test of the slopes of the resistance curves was significant (P = 0.002) while analysis of variance of differential pressures was not (P = 0.29). All post-NAC placement Paco2 were smaller than pre-placement values; there were no differences in pulmonary mechanics, and Petco2 correlated closely with Paco2 (n = 132, r = 0.79) defined as Petco2 = 0.68.Paco2 + 5.52; means +/- 1 SD, Paco2 -Petco2 was 4.7 +/- 4.7 torr and Petco2/Paco2 was 0.86 +/- 0.14.
Authors:
K S Meredith; F J Monaco
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pediatric pulmonology     Volume:  9     ISSN:  8755-6863     ISO Abbreviation:  Pediatr. Pulmonol.     Publication Date:  1990  
Date Detail:
Created Date:  1991-01-30     Completed Date:  1991-01-30     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8510590     Medline TA:  Pediatr Pulmonol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  254-9     Citation Subset:  IM    
Affiliation:
Department of Neonatology, Memorial Hospital, Colorado Springs, Colorado 80909.
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MeSH Terms
Descriptor/Qualifier:
Carbon Dioxide / analysis*,  blood
Evaluation Studies as Topic
Humans
Infant
Infant, Newborn
Monitoring, Physiologic / instrumentation*
Respiration, Artificial / instrumentation*
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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