Oxygen consumption after cardiac surgery--a comparison between calculation by Fick's principle and measurement by indirect calorimetry.
Oxygen consumption calculated by Fick's principle (cVO2) was compared to oxygen consumption measured (mVO2) by indirect calorimetry (Deltatrac Metabolic Computer) in 10 patients in the post-operative period after cardiac surgery. For 50 pairs of measurements the mean difference (mVO2-cVO2) was 34 +/- 27 ml/min.m2. The limits of agreement were -20 ml/min.m2 to 88 ml/min.m2. These results showed that cVO2 and mVO2 were not interchangeable in this study.
Bizouarn
P
P
Département d'Anesthésie-Réanimation, Hôpital G. et R. Laënnec, Nantes, France.
Soulard
D
D
Blanloeil
Y
Y
Guillet
A
A
Goarin
Y
Y
D000368:Aged; D015982:Bias; D001784:Blood Gas Analysis / Q000379:methods / Q000592:standards*; D001830:Body Surface Area; D002153:Calorimetry, Indirect / Q000379:methods / Q000592:standards*; D002302:Cardiac Output; D006348:Cardiac Surgical Procedures; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D010101:Oxygen Consumption; D011184:Postoperative Period