Continuous mixed venous oxygen saturation measurement: A significant advance in hemodynamic monitoring?
- 1 October 1985
- journal article
- review article
- Published by Springer Nature in Journal of Clinical Monitoring and Computing
- Vol. 1 (4) , 245-258
- https://doi.org/10.1007/bf02832818
Abstract
Development of the flow-directed pulmonary artery catheter in combination with reflective fiberoptic oximetry techniques allows the clinician to continuously measure mixed venous oxygen saturation (SvO2). A briet review of the determinants of oxygen balance, the Fick principle, and the technology of continuous SvO2 monitoring is preliminary to a debate between two clinicians on the usefulness ot SvO2 monitoring. One clinician highly recommends use of the flow-directed pulmonary artery catheter in patients who require pulmonary artery catheterization. Monitoring of SvO2 is described as a safe, convenient, and reliable option that is cost-effective. Continuous availability of this dynamic physiologic monitor is of great value in improving understanding of serious disturbances in oxygen balance, providing information for rapid diagnosis, and guiding therapeutic interventions. Another clinician suggests a less enthusiastic approach to SvO2 monitoring and argues that SvO2 is a nonspecific index of the matching of oxygen delivery with supply. Although it is a useful adjunct in specific clinical situations, it provides uncertain information in the presence of a number of diseases. Major mistakes in patient management could follow from overreliance upon either absolute SvO2 measurements or analysis of trends over time. Use of the SvO2 monitor has not been proven cost-effective and may actually increase monitoring costs. Both clinicians agree that continuous SvO2 monitoring is valuable in many clinical circumstances, provided the limitations of the measurement arc understood.Keywords
This publication has 53 references indexed in Scilit:
- PULSED DOPPLER CARDIAC OUTPUT AND LEFT VENTRICULAR PUMPING ABILITY MEASUREMENTS DURING ARTIFICIAL VENTILATIONAnesthesiology, 1984
- RIGHT VENTRICULAR STROKE VOLUME MEASUREMENT BY AN INTRACARDIAC IMPEDANCE METHODAnesthesiology, 1984
- TISSUE pH RELIABLY FOLLOWS CARDIAC INDEX DURING ENDOTOXEMIAAnesthesiology, 1984
- PULSE OXIMETRY AND TRANSCUTANEOUS PO2DURING HEMORRHAGIC AND NORMOTENSIVE SHOCK IN DOGSAnesthesiology, 1984
- DETECTION OF INTRAOPERATIVE MYOCARDIAL ISCHEMIAAnesthesiology, 1984
- EVALUATION OF A SYSTEM FOR CONTINUOUS ON-LINE MEASUREMENT OF MULTIPLE RESPIRATORY PARAMETERS DURING ANESTHESIAAnesthesiology, 1984
- PULMONARY ARTERY CATHETERSAnesthesiology, 1984
- The use of mixed venous blood gas determinations in traumatic shockAnnals of Emergency Medicine, 1980
- Acute hemodynamic interventions shift the diastolic pressure-volume curve in man.Circulation, 1976
- Cardiac performance and mortality early after intracardiac surgery in infants and young children.Circulation, 1975