alexa Performance of a minimally invasive uncalibrated cardiac output monitoring system (Flotrac Vigileo) in haemodynamically unstable patients.
Healthcare

Healthcare

Primary Healthcare: Open Access

Author(s): Compton FD, Zukunft B, Hoffmann C, Zidek W, Schaefer JH

Abstract Share this page

Abstract BACKGROUND: Early haemodynamic assessment is of particular importance in the evaluation of haemodynamically compromised patients, but is often precluded by the invasiveness and complexity of the established cardiac output (CO) monitoring techniques. The FloTrac/Vigileo system allows minimally invasive CO determination based on the arterial pressure waveform derived from any standard arterial catheter, and the algorithm underlying CO calculation was recently modified to allow a more precise estimate of aortic compliance. METHODS: Using the new software, we studied 25 haemodynamically unstable patients who had a radial artery catheter and underwent invasive haemodynamic monitoring with the PiCCO system. PiCCO-derived transpulmonary thermodilution and pulse contour CO (reference-CO) were compared with the CO values obtained with the FloTrac/Vigileo system (AP-CO). Reported CO values are indexed to body surface area. Agreement between reference-CO and AP-CO recorded during routine clinical care was assessed using Bland-Altman statistics. RESULTS: Overall bias between the reference-CO and the AP-CO (n=324) was 0.68 litre min(-1) m(-2) with a high percentage error of +/- 58.8\% (95\% limits of agreement +/- 1.94 l min(-1) m(-2)). There was a significant difference (P<0.001) between the radial and the femoral mean arterial pressures, and bias was significantly larger for a mean pressure difference of >5 mm Hg (0.93 vs 0.57 litre min(-1) m(-2), P=0.032). No connection was found between the norepinephrine dose and the CO agreement. CONCLUSIONS: Despite the updated algorithm, AP-CO still showed a limited agreement with the reference-CO and systematically underestimated the CO so that the method is not suitable to replace invasive CO monitoring at present. This article was published in Br J Anaesth and referenced in Primary Healthcare: Open Access

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords