OPEN IN READ APP
COMPARATIVE STUDY
JOURNAL ARTICLE

Measurement of cardiac output after cardiac surgery by a new transesophageal Doppler device

Philip Jaeggi, Christoph K Hofer, Richard Klaghofer, Patricia Fodor, Michele Genoni, Andreas Zollinger
Journal of Cardiothoracic and Vascular Anesthesia 2003, 17 (2): 217-20
12698405

OBJECTIVES: Assessment of hemodynamics by transesophageal Doppler devices (TDD) may be a less invasive alternative to the pulmonary artery catheter. In contrast to the TDD evaluated so far, a new monitor (HemoSonic100) measures both blood flow velocity and the diameter of the descending aorta. The aim of this study was to assess the accuracy of the cardiac output/index (CO/CI) measured by this device compared with the CO/CI measured by thermodilution.

DESIGN: Prospective nonrandomized study.

SETTING: Community hospital; university-based statistician.

PARTICIPANTS: Twenty-two patients.

INTERVENTIONS: Elective coronary artery bypass grafting and/or valve replacement/repair.

MEASUREMENTS AND MAIN RESULTS: After routine cardiac surgery, CO/CI was determined in the intensive care unit by iced-water bolus (IWB), continuous cardiac index (CCI) assessment, and the TDD. Matched measurements were made with each patient at intervals of 30 minutes. Six percent of sets were incomplete because of failed signal detection by the TDD. Bland-Altman analysis revealed a mean bias of 0.23 L/min/m(2) for TDD and IWB. Mean bias for CCI and IWB was 0.11 L/min/m(2). The correlation between TDD and IWB (r(2) = 0.09) for cardiac index was found to be inferior to the correlation between CCI and IWB (r(2) = 0.65). Trend analysis between sequential measurements (T1-4: dTDD, dCCI, dIWB) showed a lower correlation between dTDD and dIWB (r(2) = 0.1) compared with the correlation between dCCI and dIWB (r(2) = 0.44).

CONCLUSION: The transesophageal Doppler device (HemoSonic100) cannot be recommended as a sole method for monitoring cardiac output in patients after cardiac surgery.

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Trending Papers

Available on the App Store

Available on the Play Store
Remove bar
Read by QxMD icon Read
12698405
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"