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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1997-7-17
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pubmed:abstractText |
We validated experimentally the ability of hood indirect calorimetry to measure accurately VO2. For this purpose we compared cardiac output calculated from the Fick equation Q = VO2/(Ca(O2) - CV(O2)), in which VO2 was obtained by hood indirect calorimetry, to thermodilution cardiac output (Qth) measured simultaneously during cardiac catheterization in children (n = 16). Because FI(CO2) is a critical factor in hood indirect calorimetry calculations, we also assessed the consequence of taking into account measured FI(CO2) rather than using the usual standard value of 0.0004. We found a good agreement between Q and Qth whether we used experimentally measured FI(CO2) in ambient air (Qth = 0.89 Q + 0.39, r = 0.941) or standard FI(CO2) (Qth = 0.84 Q + 0.55, r = 0.930). However, VCO2 and R computed from standard FI(CO2) differed significantly (p < 0.001) from values derived from measured FI(CO2). This demonstrates that indirect calorimetry allows reasonable estimates of Q, VO2, VCO2, and R provided that the actual values of FI(CO2) are used.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1073-449X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
155
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1930-4
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:9196098-Adolescent,
pubmed-meshheading:9196098-Calorimetry, Indirect,
pubmed-meshheading:9196098-Cardiac Output,
pubmed-meshheading:9196098-Child,
pubmed-meshheading:9196098-Child, Preschool,
pubmed-meshheading:9196098-Evaluation Studies as Topic,
pubmed-meshheading:9196098-Female,
pubmed-meshheading:9196098-Humans,
pubmed-meshheading:9196098-Infant,
pubmed-meshheading:9196098-Male,
pubmed-meshheading:9196098-Models, Cardiovascular,
pubmed-meshheading:9196098-Oxygen Consumption,
pubmed-meshheading:9196098-Thermodilution
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pubmed:year |
1997
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pubmed:articleTitle |
Comparison of indirect calorimetry and thermodilution cardiac output measurement in children.
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pubmed:affiliation |
Hôpital Marie-Lannelongue and Département de Physiologie, Faculté deMedécine Pitié-Salpêtrière, Paris, France.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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