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- Title
Can arterial shape change with IABP play a role in comparing FlowTrac/EV 1000 vs. pulmonary cardiac output?
- Authors
Vetrugno, Luigi; Deana, Cristian; Barbariol, Federico
- Abstract
The article discusses a comparison between the pulmonary artery catheter (PAC) and the fourth generation of the FloTrac system (FloTrac/EV1000) in estimating cardiac output (CO) during robotic-assisted off-pump coronary artery bypass (OPCAB) surgery. The authors found that the FloTrac/EV1000 system had a bias of 1.46 L/min and a high percentage error of 72.98%, indicating that its reliability in estimating CO was not acceptable, especially in patients with low systemic vascular resistances (SVRI). However, the authors of the article also mention their own study from over 10 years ago, which evaluated the accuracy and precision of the second generation of FloTrac and found better results. They suggest that the conflicting results between studies could be due to the inclusion of patients supported with an intra-aortic balloon pump (IABP), which affects the arterial line profile used in pulse contour analysis. They propose that excluding patients with IABP or increasing the sample size could lead to different conclusions. Additionally, they note that the PAC catheter, considered the clinical gold standard, also has a percentage error greater than 40% when compared to the true gold standard aortic flow probe. The authors conclude that while mini-invasive devices like FloTrac are precise, they need to be more accurate and can be influenced by the type and time of surgery. They also suggest that the accuracy of FloTrac may be better
- Subjects
CARDIAC output; PULMONARY artery catheters; CORONARY artery bypass; INTRA-aortic balloon counterpulsation; SURGICAL emergencies
- Publication
Heart & Vessels, 2024, Vol 39, Issue 3, p273
- ISSN
0910-8327
- Publication type
Article
- DOI
10.1007/s00380-023-02346-6