Comparison of cardiac output assessed by pulse-contour analysis and thermodilution in patients undergoing minimally invasive direct coronary artery bypass grafting.
J Cardiothorac Vasc Anesth
; 13(4): 437-40, 1999 Aug.
Article
en En
| MEDLINE
| ID: mdl-10468257
ABSTRACT
OBJECTIVE:
To investigate the precision and accuracy of continuous pulse contour cardiac output (PCCO) compared with intermittent transcardiopulmonary (TCPCO) and pulmonary artery thermodilution (TDCO) measurements in patients undergoing minimally invasive coronary bypass surgery (MIDCAB).DESIGN:
Prospective, controlled, clinical study.SETTING:
University hospital.PARTICIPANTS:
Twelve patients undergoing MIDCAB.INTERVENTIONS:
Thirty-six measurements of PCCO and thermodilution cardiac output (CO) were simultaneously performed after the start of surgery, during bypass grafting, and at the end of surgery. TCPCO and TDCO were simultaneously assessed by three injections of ice-cold saline randomly spread over the respiratory cycle. The pulse contour device was initially calibrated with an additional set of aortic thermodilution measurements. MEASUREMENTS AND MAINRESULTS:
Absolute values of CO ranged between 1.6 and 9.2 L/min. A close agreement among the three techniques was observed at all measurements. Mean bias between PCCO and TDCO and TCPCO was 0.003 L/min (2 SD of differences between methods = 1.26 L/min) and 0.27 L/min (2 SD of differences between methods = 1.16 L/min), respectively. The correlation coefficients were r2 = 0.90 for TCPCO versus PCCO and r2 = 0.88 for TDCO versus PCCO.CONCLUSION:
The results of the present study show that compared with thermodilution CO, pulse contour analysis enables accurate measurement of continuous CO in patients undergoing MIDCAB.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Pulso Arterial
/
Termodilución
/
Gasto Cardíaco
/
Puente de Arteria Coronaria
/
Monitoreo Intraoperatorio
/
Pruebas de Función Cardíaca
Tipo de estudio:
Clinical_trials
/
Observational_studies
Límite:
Humans
Idioma:
En
Revista:
J Cardiothorac Vasc Anesth
Asunto de la revista:
ANESTESIOLOGIA
/
CARDIOLOGIA
Año:
1999
Tipo del documento:
Article
País de afiliación:
Alemania