Less-invasive cardiac output monitoring by earpiece densitometry
- 1 June 1986
- journal article
- research article
- Published by Wolters Kluwer Health in Critical Care Medicine
- Vol. 14 (6) , 577-579
- https://doi.org/10.1097/00003246-198606000-00013
Abstract
Cardiac output was measured by thermodilution and ear densitometry in surgical ICU patients who had pulmonary arterial catheters. Overall comparison based on 56 sets of triplicate measurements revealed a correlation coefficient (r) of 0.76 between the two techniques. Although ear densitometry was more accurate with injection via the antecubital vein (r = 0.88) vs. more distal injection (r = 0.67), these data suggest that this technique lacks the accuracy for clinical application.Keywords
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