FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1522481237> ?p ?o ?g. }

• W1522481237 endingPage "480" @default.
• W1522481237 startingPage "474" @default.
• W1522481237 abstract "Study objective Cardiac output ( Q ˙ ) can be estimated noninvasively during exercise by employing CO2-rebreathing techniques (equilibrium and exponential) to estimate the oxygenated mixed venous Pco2 (P v ¯ CO2). It has been found in adults and children that the equilibrium method underestimates Q ˙ as a result of overestimation of P v ¯ CO2, unless P v ¯ CO2 is “downstream corrected.” In adults, it has been found that the exponential method does not require downstream correction and yields values similar to those obtained by the equilibrium method with downstream correction. The objectives of this study were as follows: to test whether the exponential method gives similar results to the equilibrium method with downstream correction in children; to verify that downstream correction is required in children; and to test whether a single equation could be used in adults and children to predict Q ˙ from oxygen consumption ( V ˙ o2). Design: Descriptive. Setting: Exercise laboratory of a university hospital. Participants 23 children (16 boys, 7 girls) with a mean age of 11.0±1.9 years (7.1 to 13.9 years), and 12 adults (7 men, 5 women) with a mean age of 33.6±7.2 years (24 to 48 years). Interventions While performing steady-state exercise on an ergometer, P v ¯ CO2 was determined in 14 children using both the equilibrium and exponential methods, and in all other subjects using the equilibrium method alone. Measurements and results For the 14 children who underwent testing by both the equilibrium and exponential methods, the uncorrected equilibrium P v ¯ CO2 was significantly different from both the corrected P v ¯ CO2 and the exponential P v ¯ CO2. We found a strong relationship between Q ˙ (L/min), calculated using the downstream corrected values of P v ¯ CO2, and V ˙ o2 (L/min) (r2=0.95), and this relationship was similar to that obtained by dye dilution in other studies. When weight was included, it was determined that one equation could be used for children and adults: Q ˙ (L/min)=1.42+5.80 V ˙ o2 (L/min)+0.06 wt (kg), r2=0.97, SEY=0.67. Conclusions CO2-rebreathing techniques can be used to determine Q ˙ in children; the exponential method gives values that are similar to the equilibrium method with the downstream correction; and one prediction can be used for Q ˙ in adults and children. Cardiac output ( Q ˙ ) can be estimated noninvasively during exercise by employing CO2-rebreathing techniques (equilibrium and exponential) to estimate the oxygenated mixed venous Pco2 (P v ¯ CO2). It has been found in adults and children that the equilibrium method underestimates Q ˙ as a result of overestimation of P v ¯ CO2, unless P v ¯ CO2 is “downstream corrected.” In adults, it has been found that the exponential method does not require downstream correction and yields values similar to those obtained by the equilibrium method with downstream correction. The objectives of this study were as follows: to test whether the exponential method gives similar results to the equilibrium method with downstream correction in children; to verify that downstream correction is required in children; and to test whether a single equation could be used in adults and children to predict Q ˙ from oxygen consumption ( V ˙ o2). Descriptive. Exercise laboratory of a university hospital. 23 children (16 boys, 7 girls) with a mean age of 11.0±1.9 years (7.1 to 13.9 years), and 12 adults (7 men, 5 women) with a mean age of 33.6±7.2 years (24 to 48 years). While performing steady-state exercise on an ergometer, P v ¯ CO2 was determined in 14 children using both the equilibrium and exponential methods, and in all other subjects using the equilibrium method alone. For the 14 children who underwent testing by both the equilibrium and exponential methods, the uncorrected equilibrium P v ¯ CO2 was significantly different from both the corrected P v ¯ CO2 and the exponential P v ¯ CO2. We found a strong relationship between Q ˙ (L/min), calculated using the downstream corrected values of P v ¯ CO2, and V ˙ o2 (L/min) (r2=0.95), and this relationship was similar to that obtained by dye dilution in other studies. When weight was included, it was determined that one equation could be used for children and adults: Q ˙ (L/min)=1.42+5.80 V ˙ o2 (L/min)+0.06 wt (kg), r2=0.97, SEY=0.67. CO2-rebreathing techniques can be used to determine Q ˙ in children; the exponential method gives values that are similar to the equilibrium method with the downstream correction; and one prediction can be used for Q ˙ in adults and children." @default.
• W1522481237 created "2016-06-24" @default.
• W1522481237 creator A5040813611 @default.
• W1522481237 creator A5053473599 @default.
• W1522481237 creator A5083899345 @default.
• W1522481237 date "1997-02-01" @default.
• W1522481237 modified "2023-09-26" @default.
• W1522481237 title "Estimation of Mixed Venous Pco2 for Determination of Cardiac Output in Children" @default.
• W1522481237 cites W141526888 @default.
• W1522481237 cites W1928278259 @default.
• W1522481237 cites W1964584170 @default.
• W1522481237 cites W1976423080 @default.
• W1522481237 cites W1986251384 @default.
• W1522481237 cites W1988692018 @default.
• W1522481237 cites W20248302 @default.
• W1522481237 cites W2030391150 @default.
• W1522481237 cites W2035780033 @default.
• W1522481237 cites W2045827836 @default.
• W1522481237 cites W2051267221 @default.
• W1522481237 cites W2089578709 @default.
• W1522481237 cites W2093047464 @default.
• W1522481237 cites W2107556406 @default.
• W1522481237 cites W2118592384 @default.
• W1522481237 cites W2129368699 @default.
• W1522481237 cites W2133316176 @default.
• W1522481237 cites W2136914407 @default.
• W1522481237 cites W2174890790 @default.
• W1522481237 cites W2261469318 @default.
• W1522481237 cites W2309270568 @default.
• W1522481237 cites W2399238571 @default.
• W1522481237 cites W2415501162 @default.
• W1522481237 cites W2417281889 @default.
• W1522481237 cites W2417296209 @default.
• W1522481237 cites W2417549213 @default.
• W1522481237 cites W2462749759 @default.
• W1522481237 cites W64653452 @default.
• W1522481237 cites W9670820 @default.
• W1522481237 doi "https://doi.org/10.1378/chest.111.2.474" @default.
• W1522481237 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/9041999" @default.
• W1522481237 hasPublicationYear "1997" @default.
• W1522481237 type Work @default.
• W1522481237 sameAs 1522481237 @default.
• W1522481237 citedByCount "13" @default.
• W1522481237 countsByYear W15224812372012 @default.
• W1522481237 countsByYear W15224812372018 @default.
• W1522481237 crossrefType "journal-article" @default.
• W1522481237 hasAuthorship W1522481237A5040813611 @default.
• W1522481237 hasAuthorship W1522481237A5053473599 @default.
• W1522481237 hasAuthorship W1522481237A5083899345 @default.
• W1522481237 hasBestOaLocation W15224812372 @default.
• W1522481237 hasConcept C105795698 @default.
• W1522481237 hasConcept C126322002 @default.
• W1522481237 hasConcept C134306372 @default.
• W1522481237 hasConcept C139940330 @default.
• W1522481237 hasConcept C151376022 @default.
• W1522481237 hasConcept C187212893 @default.
• W1522481237 hasConcept C33923547 @default.
• W1522481237 hasConcept C71924100 @default.
• W1522481237 hasConcept C84393581 @default.
• W1522481237 hasConceptScore W1522481237C105795698 @default.
• W1522481237 hasConceptScore W1522481237C126322002 @default.
• W1522481237 hasConceptScore W1522481237C134306372 @default.
• W1522481237 hasConceptScore W1522481237C139940330 @default.
• W1522481237 hasConceptScore W1522481237C151376022 @default.
• W1522481237 hasConceptScore W1522481237C187212893 @default.
• W1522481237 hasConceptScore W1522481237C33923547 @default.
• W1522481237 hasConceptScore W1522481237C71924100 @default.
• W1522481237 hasConceptScore W1522481237C84393581 @default.
• W1522481237 hasIssue "2" @default.
• W1522481237 hasLocation W15224812371 @default.
• W1522481237 hasLocation W15224812372 @default.
• W1522481237 hasLocation W15224812373 @default.
• W1522481237 hasOpenAccess W1522481237 @default.
• W1522481237 hasPrimaryLocation W15224812371 @default.
• W1522481237 hasRelatedWork W1592683135 @default.
• W1522481237 hasRelatedWork W2040248213 @default.
• W1522481237 hasRelatedWork W2043099224 @default.
• W1522481237 hasRelatedWork W2051221975 @default.
• W1522481237 hasRelatedWork W2119158312 @default.
• W1522481237 hasRelatedWork W2330407128 @default.
• W1522481237 hasRelatedWork W2969635709 @default.
• W1522481237 hasRelatedWork W3037784022 @default.
• W1522481237 hasRelatedWork W4229963900 @default.
• W1522481237 hasRelatedWork W4242858705 @default.
• W1522481237 hasVolume "111" @default.
• W1522481237 isParatext "false" @default.
• W1522481237 isRetracted "false" @default.
• W1522481237 magId "1522481237" @default.
• W1522481237 workType "article" @default.