Cardiac output monitoring: aortic transpulmonary thermodilution and pulse contour analysis agree with standard thermodilution methods in patients undergoing lung transplantation
- 1 August 2003
- journal article
- research article
- Published by Springer Nature in Canadian Journal of Anesthesia/Journal canadien d'anesthésie
- Vol. 50 (7) , 707-711
- https://doi.org/10.1007/bf03018714
Abstract
The PiCCO System is a relatively new device allowing intermittent cardiac output monitoring by aortic transpulmonary thermodilution technique (Aorta intermittent) and continuous cardiac output monitoring by pulse contour analysis (Aorta continuous). The objective of this study was to assess the level of agreement of Aorta intermittent and Aorta continuous with intermittent (PA intermittent) and continuous cardiac output (PA continuous) measured through a special pulmonary artery catheter (Vigilance System SvO2/CCO Monitor) in patients undergoing singleor double-lung transplantation. Measurements were obtained in 58 patients: at four time points in patients undergoing single-lung transplantation and at six time points in those undergoing double-lung transplantation. Bland and Altman and correlation analyses were used for statistical evaluation. We found close agreement between the techniques. Mean bias between Aorta intermittent and PA intermittent and between Aorta continuous and PA continuous was 0.18 L·min−1 (2SD of differences between methods = 1.59 L·min−1) and −0.07 L·min−1 (2SD of differences between methods = 1.46 L·min−1) respectively. Mean bias between PA continuous and PA intermittent and Aorta continuous and PA intermittent was 0.15 L·min−1 (2SD of differences between methods = 1.39 L·min−1) and 0.08 L·min−1 (2SD of differences between methods = 1.43 L·min−1). Measurements with the aortic transpulmonary thermodilution technique give continuous and intermittent values that agree with the pulmonary thermodilution method which is still the current clinical standard. Le PiCCO System est un appareil, relativement nouveau, de monitorage intermittent du débit cardiaque par la technique de thermodilution aortique transpulmonaire (aortique intermittente) et de monitorage continu du débit cardiaque par l’analyse de la conformation du pouls (aortique continue). L’objectif de l’étude était d’évaluer le degré de concordance entre la technique aortique intermittente et aortique continue, réalisée par la mesure du débit cardiaque intermittente (AP intermittente) et continue (AP continue) par un cathéter artériel pulmonaire spécial (Vigilance System SvO2/CCO Monitor) chez des patients qui subissent la greffe d’un ou des deux poumons. Les mesures ont été prises à quatre moments déterminés chez 58 patients devant subir une greffe unipulmonaire et à six moments chez ceux qui devaient subir une greffe bipulmonaire. L’analyse de Bland et Altman et l’analyse de corrélation ont servi à l’évaluation statistique. Nous avons trouvé une étroite concordance entre les techniques. Le biais moyen entre la technique aortique intermittente et AP intermittente et entre Aortique continue et AP continue a été respectivement de 0,18 L·min−1 (différence de 2 écarts types entre les méthodes = 1,59 L·min−1 ) et − 0,07 L·min−1 (différence de 2 écarts types = 1,46 L·min−1 ). Le biais moyen entre AP continue et AP intermittente, et entre Aortique continue et Aortique intermittente a été de 0,15 L·min−1 (différence de 2 écarts types = 1,39 L·min−1) et 0,08 L·min−1 (différence de 2 écarts types =1,43 L·min−1 ). Les mesures obtenues selon la technique de thermodilution aortique transpulmonaire ont fourni des valeurs continues et intermittentes qui concordent avec celle de la thermodilution pulmonaire, laquelle demeure la norme clinique.Keywords
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