| Autor: |
Andresen H, Max, Henríquez V, Mauricio, Mercado F, Marcelo, Farías G, Gonzalo, Castillo S, Carmen, Benítez G, Carlos, Dougnac L, Alberto |
| Jazyk: |
Spanish; Castilian |
| Rok vydání: |
2005 |
| Předmět: |
|
| Zdroj: |
Revista médica de Chile, Volume: 133, Issue: 7, Pages: 761-766, Published: JUL 2005 |
| Popis: |
Background: Cardiac output can be measured non invasively by transesophageal Doppler. This is an alternative to measure it by thermodilution with a catheter in the pulmonary artery. Aim: To compare both methods of cardiac output measurement. Material and methods: Simultaneous measurement of cardiac output by transesophageal Doppler and thermodilution with a catheter in the pulmonary artery in four male critical patients, aged 60±12 years, hospitalized in a University Hospital. The Bland and Altman method to compare the concordance between two measurements, was used. Results: Forty measurements were performed. The results of both methods had a correlation coefficient of 0.98. According to the Bland and Altman method, the difference between both methods was -0.5 L with a precision of 0.52 L/min (95% confidence interval -1.51 to 0.52 L/min). Considering that a change between two sequential measurements is considered significant when the difference is more than 15%, both measurements agreed in 83% of cases, that there was a change in cardiac output. Conclusions:Transesophageal Doppler is a promising non invasive technique to measure cardiac output in critical care patients. It becomes a valid alternative to the thermodilution technique. This preliminary experience must be confirmed in a larger series |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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