We have located links that may give you full text access.
EVALUATION STUDIES
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Accuracy of calculated arterial saturation in oxygen in neonatal foals and effects of monitor, sensor, site of sensor placement, and degree of hypoxemia on the accuracy of pulse oximetry.
Journal of Veterinary Emergency and Critical Care 2014 September
OBJECTIVES: To (1) assess the agreement between calculated values for arterial hemoglobin saturation of oxygen (SaO2 ) and values obtained by co-oximetry, (2) assess the accuracy of 2 pulse oximetry monitors for measurement of SaO2 in foals, and for each monitor, and (3) determine the optimal combination of sensor type and site of sensor placement for SaO2 monitoring.
DESIGN: Prospective experimental study.
SETTING: University teaching hospital.
ANIMALS: Six neonatal foals.
INTERVENTIONS: Foals were anesthetized with isoflurane and SaO2 was manipulated by varying the inspired fraction of oxygen. SaO2 was calculated from oxygen tension or measured by pulse oximetry using 2 monitors equipped with transmission or reflectance sensors attached to the foal's tongue, lip, ear, or inserted rectally (reflectance sensor only). SaO2 values measured by co-oximetry were used as the gold standard to calculate bias.
MEASUREMENTS AND MAIN RESULTS: Mean (±SD) SaO2 determined by co-oximetry was 65.2% ± 11.8%, 85.4% ± 2.5%, and 97.2% ± 0.4% at the low, intermediate, and high SaO2 level, respectively. Sensors attached to the ear failed to provide SaO2 readings for most attempts. Reflectance sensors placed on the lip or rectally gave significantly larger biases at low SaO2 (-17.0% and -23.6%, respectively) than at higher levels. Bias of all other combinations of monitors, sensors, and sites (-1.8 to -4.1%) was not significantly influenced by the level of SaO2 or different from each other. The bias of calculated saturation was similar to that of pulse oximetry.
CONCLUSIONS: Transmission sensors placed on the lip or tongue or reflectance sensors placed on the tongue give the most accurate assessment of SaO2 in anesthetized neonatal foals. Calculated saturation is not more accurate than pulse oximetry to estimate SaO2 .
DESIGN: Prospective experimental study.
SETTING: University teaching hospital.
ANIMALS: Six neonatal foals.
INTERVENTIONS: Foals were anesthetized with isoflurane and SaO2 was manipulated by varying the inspired fraction of oxygen. SaO2 was calculated from oxygen tension or measured by pulse oximetry using 2 monitors equipped with transmission or reflectance sensors attached to the foal's tongue, lip, ear, or inserted rectally (reflectance sensor only). SaO2 values measured by co-oximetry were used as the gold standard to calculate bias.
MEASUREMENTS AND MAIN RESULTS: Mean (±SD) SaO2 determined by co-oximetry was 65.2% ± 11.8%, 85.4% ± 2.5%, and 97.2% ± 0.4% at the low, intermediate, and high SaO2 level, respectively. Sensors attached to the ear failed to provide SaO2 readings for most attempts. Reflectance sensors placed on the lip or rectally gave significantly larger biases at low SaO2 (-17.0% and -23.6%, respectively) than at higher levels. Bias of all other combinations of monitors, sensors, and sites (-1.8 to -4.1%) was not significantly influenced by the level of SaO2 or different from each other. The bias of calculated saturation was similar to that of pulse oximetry.
CONCLUSIONS: Transmission sensors placed on the lip or tongue or reflectance sensors placed on the tongue give the most accurate assessment of SaO2 in anesthetized neonatal foals. Calculated saturation is not more accurate than pulse oximetry to estimate SaO2 .
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app