Comparison of Accuracy of Estimation of Cardiac Output by Thermodilution Versus the Fick Method Using Measured Oxygen Uptake.

ABSTRACT: The thermodilution (TD) method is routinely used for the estimation of cardiac output (Q̇_C). However, its accuracy, compared with the gold-standard Fick method, where systemic oxygen uptake (V̇O₂) is directly measured, and Q̇_C calculated from V̇O₂ and the arterio-venous oxygen difference ("direct" Fick), has not been well validated. The present study determined the agreement between TD and Fick methods in consecutive patients who underwent pulmonary artery catheterization for a broad range of clinical conditions. This is a subanalysis of a previous study comparing the indirect versus Fick method based on a prospective, consecutive patient registry of 253 patients who underwent pulmonary artery catheterization for clinical indications at a single

SUBMITTER: Narang N 

PROVIDER: S-EPMC9648100 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature