Stroke volume index assessment using two minimal invasive devices during hemodynamic postoperative optimization
© BioMed Central Ltd. 2010
Published: 1 March 2010
Postoperative hemodynamic optimization has been proved to reduce morbidity in high-risk patients . Nowadays stroke volume index (SVI) monitoring is available with different less invasive techniques that have shown different levels of agreement and precision with the pulmonary artery catheter . The aim of this study was to evaluate agreement and precision between SVI obtained with a calibrated (LiDCO™plus; LiDCO Ltd, Cambridge, UK) and an uncalibrated pulse contour analysis device (FloTrac/Vigileo; Edwards Lifesciences, Irvine, CA, USA), in patients undergoing postoperative hemodynamic optimization.
Patients undergoing a hemodynamic optimization protocolized care according to a previous published trial  to reach an oxygen delivery index >600 ml/minute/m2 after abdominal surgery were enrolled. After calibration of the LiDCO™plus, SVI data obtained from LiDCO™plus, and FloTrac/Vigileo (version 1.07) were recorded every 15 minutes for 6 hours. Agreement and precision between SVI obtained with LiDCO (SVILI) and SVI obtained with Vigileo (SVIFT) were evaluated with Bland and Altman analysis.
SVI obtained from the uncalibrated low-invasive, pulse contour analysis technique seems as accurate as the calibrated technique in a clinical hemodynamic protocolized setting to increase oxygen delivery in postoperative high-risk patients.