Advertisement

Validity of Continuous Cardiac Output Measured by a Doppler Pulmonary Artery Catheter Versus Thermodilution, and Effect of Distal Angle on the Variance Between Methods

  • Wei-Te Hung
  • Jian-Sheng Wang
  • Robert J. Dean
  • Bryan K. Lee
  • Chung-Yuan Lin
Conference paper

Abstract

Continuous monitoring of cardiac output in patients with cardiac dysfunction or hemodynamic instability is desirable, especially if the patient is in critical condition. For the anesthesiologist, continuous monitoring of cardiac output may be helpful because it provides information which may allow more appropriate management of events during critical periods, such as weaning from cardiopulmonary bypass in cardiac surgery, or cross-clamping and declamping of the aorta in vascular surgery. A pulmonary artery catheter that allows both intermittent and continuous Doppler measurements of cardiac output has been developed (Flocath, Cardiometrics Inc., CA). In high-risk patients, we tested the hypothesis that the Doppler-estimated cardiac output (DECO) was identical to the thermodilutional cardiac output (TDCO), and that the DECO changed similarly in direction and magnitude when the TDCO changed. Further, we investigated the change in cardiac output with both techniques when the distal angle of the Flocath was altered.

Keywords

Cardiac Output Abdominal Aortic Aneurysm Continuous Monitoring Pulmonary Artery Catheter Doppler Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Salandin V, Zussa C, Risica G, et al. Comparison of cardiac output estimation by thoracic electrical bioimpedance, thermodilution, and Fick methods. Critical Care Medicine 1988; 16: 1157–1158.PubMedCrossRefGoogle Scholar
  2. 2.
    Segal J, Pearl RG, Ford AJ, et al. Instantaneous and continuous cardiac output obtained with a Doppler pulmonary artery catheter. J Am Coll Cardiol 1989; 13: 1382–1392.PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Tokyo 1992

Authors and Affiliations

  • Wei-Te Hung
    • 1
  • Jian-Sheng Wang
    • 1
  • Robert J. Dean
    • 1
  • Bryan K. Lee
    • 2
  • Chung-Yuan Lin
    • 1
  1. 1.Departments of Anesthesia & Critical CareThe University of Chicago HospitalsChicagoUSA
  2. 2.Departments of Anesthesia & SurgeryThe University of Chicago HospitalsChicagoUSA

Personalised recommendations