Articles: apnea-diagnosis.
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Journal of critical care · Apr 2018
Apnea testing using the oxygen insufflation method for diagnosis of brain death may compromise pulmonary function.
The aim of our study was to compare the reliability and safety of the classical I-AT with the continuous positive airway pressure apnea test (CPAP-AT). ⋯ Our study indicates that I-AT may compromise pulmonary function and this may support the recommendation of safer CPAP-AT alternative.
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Journal of anesthesia · Oct 2017
Comparative StudyComparison of Nellcor™ PM1000N and Masimo Radical-7(®) for detecting apnea in volunteers.
Although capnography is considered the gold standard for monitoring of ventilation, it may not work accurately in some situations. We compared the performance of two non-invasive continuous respiratory rate (RR) monitors that are alternatives for the detection of respiratory depression. ⋯ The Masimo Radical-7® monitor provides better detection of apnea in volunteers than the Nellcor™ PM-1000N.
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Multicenter Study
Prevention of Hypoxemia During Apnea Testing: A Comparison of Oxygen Insufflation And Continuous Positive Airway Pressure.
Apnea testing is an essential step in the clinical diagnosis of brain death. Current international guidelines recommend placement of an oxygen (O2) insufflation catheter into the endotracheal tube to prevent hypoxemia, but use of a continuous positive airway pressure (CPAP) valve may be more effective at limiting arterial partial pressure of O2 (PO2) reduction. ⋯ Both methods of O2 supplementation are associated with similar changes in arterial PO2 and PCO2. Performance of ABGs at regular intervals shortens apnea test duration and may avoid excessive pH reduction and consequent hemodynamic effects.