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
Artículo
en Español
| LILACS
| ID: lil-429134
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 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.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Termodilución
/
Cateterismo de Swan-Ganz
/
Gasto Cardíaco
/
Ecocardiografía Doppler
/
Ecocardiografía Transesofágica
Tipo de estudio:
Evaluación Económica en Salud
/
Estudio observacional
Límite:
Humanos
/
Masculino
Idioma:
Español
Revista:
Rev. méd. Chile
Asunto de la revista:
Medicina
Año:
2005
Tipo del documento:
Artículo
País de afiliación:
Chile
Institución/País de afiliación:
Pontificia Universidad Católica de Chile/CL
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