Determinación y análisis comparativo de gasto cardíaco en enfermos críticos mediante Doppler transesofágico y termodilución en bolos: Experiencia preliminar / Comparison of cardiac output measurement in critical patients using transesophageal Doppler or thermodilution: A preliminary report
Rev. méd. Chile
; 133(7): 761-766, jul. 2005. ilus, tab
Article
in Es
| LILACS
| ID: lil-429134
Responsible library:
BR1.1
ABSTRACT
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 andmethods:
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.
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Thermodilution
/
Catheterization, Swan-Ganz
/
Cardiac Output
/
Echocardiography, Doppler
/
Echocardiography, Transesophageal
Type of study:
Health_economic_evaluation
/
Observational_studies
Limits:
Humans
/
Male
Language:
Es
Journal:
Rev. méd. Chile
Journal subject:
MEDICINA
Year:
2005
Type:
Article
Affiliation country:
Chile