A new procedure for the continuous measurement of oxygen consumption in pigs
| Autor: | J. L. Black, L. R. Giles, J. M. Gooden, R. G. Tucker, E. F. Annison |
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| Rok vydání: | 1995 |
| Předmět: |
medicine.medical_specialty
Cardiac output business.industry Ultrasound chemistry.chemical_element Anatomy Blood flow Oxygen medicine.anatomical_structure chemistry medicine.artery Internal medicine Pulmonary artery Genetics medicine Cardiology Arterial blood Animal Science and Zoology business Agronomy and Crop Science Artery Oxygen saturation (medicine) |
| Zdroj: | The Journal of Agricultural Science. 124:113-118 |
| ISSN: | 1469-5146 0021-8596 |
| DOI: | 10.1017/s0021859600071318 |
| Popis: | SUMMARYWhole-body oxygen (O2) consumption was measured continuously in pigs from the product of blood flow through the pulmonary artery and arterio-venous (AV) difference of blood O2 content across the lungs (pulmonary AV procedure). Blood flow in the pulmonary artery, a measure of cardiac output, was monitored continuously using a transit-time ultrasound flow probe surgically implanted around the artery. The O2 content of pulmonary artery blood, which represents mixed venous blood O2 aturation (SvO2) was recorded continuously by fibre-optic oximetry. The relative constancy of arterial blood oxygen saturation (SaO2), obtained by catheterization of the saphenous artery, obviated the need for continuous monitoring. Complete recovery from surgical procedures, as indicated by the absence of infection and a return to pre-surgery food intake, occurred in 3–5 days. The combination of transit-time ultrasound and fibre-optic oximetry allowed the pulmonary AV procedure to provide continuous data on the oxygen consumption of growing pigs at high temperatures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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