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Highly Accessed Letter

Cardiac output measurements using the bioreactance technique in critically ill patients

David Fagnoul, Jean-Louis Vincent and De Daniel Backer*

Author Affiliations

Department of Intensive Care, Erasme University Hospital, Route de Lennik 808, Université Libre de Bruxelles, B-1070 Brussels, Belgium

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Critical Care 2012, 16:460  doi:10.1186/cc11481

Published: 9 November 2012

Abstract

Measurement of cardiac output (CO) using minimally invasive devices has gained popularity. In 11 patients we compared CO values obtained using the bioreactance technique - a new continuous, totally non-invasive CO monitor - with those obtained by semi-continuous thermodilution using a pulmonary artery catheter. We obtained CO measurements at study inclusion and after any relevant change in hemodynamic status (spontaneous or during fluid challenge, inotrope or vasopressor infusions). There was a poor correlation between the two techniques (r = 0.145). These data suggest that caution should be applied when using bioreactance devices in critically ill patients.