scholarly journals Clinical monitoring of cardiac output assessed by transoesophageal echocardiography in anaesthetised dogs: a comparison with the thermodilution technique

2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Matheus M. Mantovani ◽  
Denise T. Fantoni ◽  
André M. Gimenes ◽  
Jacqueline R. de Castro ◽  
Patrícia B. Flor ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Transoesophageal Echocardiography ◽  
Clinical Monitoring ◽  
Thermodilution Technique

Cardiac Output Clinical Monitoring and Management

1969 ◽  
Vol 7 (2) ◽  
pp. 150-176 ◽  
Author(s):  
Joseph S. Carey ◽  
Richard K. Hughes
Keyword(s):  
Cardiac Output ◽  
Clinical Monitoring

scholarly journals The Peri-Operative Measurement of Cardiac Output in Infancy by the Thermodilution Technique

1975 ◽  
Vol 3 (4) ◽  
pp. 317-320 ◽  
Author(s):  
G. M. Lawrie ◽  
R. B. Stacey ◽  
J. S. Wright
Keyword(s):  
Animal Model ◽  
Cardiac Output ◽  
Accurate Method ◽  
Left Heart ◽  
Thermodilution Technique ◽  
Right Heart

Cardiac output has been measured in infants by thermodilution during and after surgery. A method employing commercially available equipment has been developed. An animal model has been devised whereby right heart outputs of 210 ml to 2240 ml, measured by thermodilution, could be compared with left heart outputs measured by an aortic by-pass. The results of this study suggest that thermodilution is a simple, accurate method for measurement of cardiac output in infancy.

Accuracy of cardiac output estimation with multiplane transoesophageal echocardiography: comparison with thermodilution

2001 ◽  
Vol 18 (Supplement 22) ◽  
pp. 16-17
Author(s):  
R. Alvarez-Rementería ◽  
L. Muñoz ◽  
M. J. Guinaldo ◽  
E. De Paz
Keyword(s):  
Cardiac Output ◽  
Transoesophageal Echocardiography

Cardiac output during exercise measured by acetylene rebreathing, thermodilution, and Fick techniques

1995 ◽  
Vol 78 (4) ◽  
pp. 1612-1616 ◽  
Author(s):  
C. C. Hsia ◽  
L. F. Herazo ◽  
M. Ramanathan ◽  
R. L. Johnson
Keyword(s):  
Cardiac Output ◽  
Steady State ◽  
Breathing Pattern ◽  
The Other ◽  
Mixing Efficiency ◽  
Myocardial Tissue ◽  
Methodological Issues ◽  
Thermodilution Technique ◽  
Blood Temperature ◽  
Rebreathing Method

In dogs during exercise, respiratory rate can reach 200 breaths/min, blood temperature can exceed 42 degrees C, and hematocrit can approach 60%. To determine whether these changes significantly affect the measurement of cardiac output by the acetylene rebreathing method (QcRB), we compared estimates of QcRB with those measured by thermodilution and Fick (QcFI) techniques in nine dogs at rest and during steady-state exercise on a treadmill up to near-maximal workloads. Solubility of acetylene in blood was corrected to the simultaneously measured blood temperature and hematocrit. Results were also adjusted for mixing efficiency. Up to a QcFI of 20 l/min, QcRB was not significantly different from QcFI (P > 0.05). However, cardiac output measured by thermodilution was consistently higher than those measured by the other techniques (P < 0.0001). We conclude that the overall agreement between QcRB and QcFI estimates supports the validity of the rebreathing technique under exercise conditions where body temperature and hematocrit are changing rapidly and the breathing pattern is unrestrained. Systematic error by the thermodilution technique may be related to a variety of methodological issues as well as possible dissipation of cooling into the myocardial tissue and subsequent incomplete washout.

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