A comparison of hemodynamic data derived by pulmonary artery flotation catheter and the esophageal Doppler monitor in preeclampsia.

Abstract

OBJECTIVE:

This study was undertaken to compare hemodynamic data derived with the esophageal Doppler monitor against those obtained with a pulmonary artery flotation catheter in women with complicated preeclampsia.

STUDY DESIGN:

Seventeen women with severe preeclampsia who had a pulmonary artery flotation catheter placed for clinical indications also had an esophageal Doppler monitor inserted. Hemodynamic data were recorded on 2 occasions separated by several hours with both the pulmonary artery flotation catheter and the esophageal Doppler monitor simultaneously.

RESULTS:

The esophageal Doppler monitor underestimated cardiac output by 36% +/- 14% (mean +/- SD). The esophageal Doppler monitor accurately estimated cardiac output in 3 women >40 years old, whereas in the remaining women (all <35 years old) the esophageal Doppler monitor underestimated cardiac output by 38% +/- 11%. The esophageal Doppler monitor accurately reflected changes in cardiac output with time when compared with the pulmonary artery flotation catheter.

CONCLUSION:

In women with preeclampsia the esophageal Doppler monitor consistently underestimated cardiac output by approximately 40%. It is not known whether the apparent increase in accuracy among the women >40 years old arose by chance or reflected a real improvement in performance. The esophageal Doppler monitor accurately reflected the direction and magnitude of the changes in cardiac output with time.

• Authors: J A Penny, J Anthony, A H Shennan, M De Swiet, M Singer
• Journal: American journal of obstetrics and gynecology (Am J Obstet Gynecol) Vol. 183 Issue 3 Pg. 658-61 (Sep 2000) ISSN: 0002-9378 [Print] United States
• PMID: 10992189 (Publication Type: Comparative Study, Journal Article)

Topics

• Adult
• Cardiac Output
• Catheterization, Swan-Ganz
• Esophagus
• False Negative Reactions
• Female
• Hemodynamics
• Humans
• Monitoring, Physiologic (methods)
• Pre-Eclampsia (physiopathology)
• Pregnancy
• Time Factors
• Ultrasonography, Doppler