A two centre observational study of simultaneous pulse oximetry and arterial oxygen saturation recordings in intensive care unit patients
| Autor: | R C Beasley, C Knee Chong, Aiko Tanaka, J Gilchrist, Rinaldo Bellomo, N Sarma, M Bacon, M Tweedie, M Barker, Janine Pilcher, S Spragas, Sumeet K Reddy, Hidetoshi Kagaya, Paul J Young, Glenn M Eastwood, Stefan Ebmeier, Elliott E. Ridgeon, Mark Weatherall |
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| Rok vydání: | 2018 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Critical Care and Intensive Care Medicine law.invention 03 medical and health sciences 0302 clinical medicine law Anesthesiology Oxygen therapy Internal medicine medicine Humans Oximetry Prospective Studies Oxygen saturation Aged medicine.diagnostic_test business.industry Pulmonary Gas Exchange 030208 emergency & critical care medicine Middle Aged Capillary refill Intensive care unit Confidence interval Pulse pressure Oxygen Pulse oximetry Intensive Care Units Anesthesiology and Pain Medicine 030228 respiratory system Cardiology Female business New Zealand |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0310-057X |
| Popis: | The influence of variables that might affect the accuracy of pulse oximetry (SpO2) recordings in critically ill patients is not well established. We sought to describe the relationship between paired SpO2/SaO2 (oxygen saturation via arterial blood gas analysis) in adult intensive care unit (ICU) patients and to describe the diagnostic performance of SpO2 in detecting low SaO2 and PaO2. A paired SpO2/SaO2 measurement was obtained from 404 adults in ICU. Measurements were used to calculate bias, precision, and limits of agreement. Associations between bias and variables including vasopressor and inotrope use, capillary refill time, hand temperature, pulse pressure, body temperature, oximeter model, and skin colour were estimated. There was no overall statistically significant bias in paired SpO2/SaO2 measurements; observed limits of agreement were +/-4.4%. However, body temperature, oximeter model, and skin colour, were statistically significantly associated with the degree of bias. SpO2 2 2/SaO2 in adult ICU patients provides support for the use of pulse oximetry to titrate oxygen therapy. However, SpO2 recordings alone should be used cautiously when SaO2 recordings of 4.4% higher or lower than the observed SpO2 would be of concern. A range of variables relevant to the critically ill had little or no effect on bias. |
| Databáze: | OpenAIRE |
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