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.
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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)
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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
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