| Autor: |
Broomhead, C. J., Wright, S. J., Kiff, K. M., Withington, P. S. |
| Zdroj: |
Laboratory Animals; July 1998, Vol. 32 Issue: 3 p324-329, 6p |
| Abstrakt: |
A comparison of two techniques for measuring cardiac output, thermodilution (TD) and thoracic electrical bioimpedance (TEB), was undertaken in a porcine model. Eight anaesthetized large white pigs were studied. A total of 436 paired measurements were performed over a range of cardiac outputs from 1.7 to 15.11/min as measured by thermodilution. The Pearson product moment correlation coefficient was r=0.963 with P< 0.001. Analysis by Bland and Altman statistics revealed a mean difference (bias) of -0.021/min and the limits of ±1.6l/min, similar to figures found in human comparative studies. These results confirm that thoracic electrical bioimpedance is a valid method of measuring cardiac output in pigs. It has significant advantages compared to thermodilution, in particular it is cheap, simple to use, non-invasive and provides continuous data. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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