Recent concerns regarding the clinical accuracy of pulse oximetry in dark-skinned patients, specifically in detecting occult hypoxaemia, have motivated research on this topic and recently reported in this journal. We provide an overview of the technical aspects of the issue, the sources of inaccuracy, and the current regulations and limitations. These insights offer perspectives on how pulse oximetry can be improved to address these potential limitations.
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http://dx.doi.org/10.1016/j.bja.2023.07.005 | DOI Listing |
Cardiopulmonary bypass (CPB) in cardiac surgery is associated with a high risk of postoperative neurological complications. Perioperative use of vasopressors is common to counteract arterial hypotension in this setting. However, use of α-agonist vasopressors has been associated with cerebral desaturations.
View Article and Find Full Text PDFSports (Basel)
January 2025
Motion in Brains Research Group, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, 28023 Madrid, Spain.
To reduce the risk of syncope, trained breath-hold divers (BHDs) use a specialized breathing technique after surfacing called "hook breathing" (HB). It consists of a full inspiration followed by a Valsalva-like maneuver and with subsequent exhalation performed against resistance to generate continuous positive airway pressure during exhalation. This study analyzed the influence of HB on oxygen saturation recovery after a -40 m depth apnea dive in trained BHDs.
View Article and Find Full Text PDFFront Vet Sci
January 2025
Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
Brachycephalic breeds suffer from respiratory distress known as brachycephalic obstructive airway syndrome (BOAS) and the multiple comorbidities associated with it. Targeted breeding toward a more BOAS-free phenotype requires accurate and least invasive detection of BOAS severity grades that are accessible and accepted by the breeders and kennel clubs. This study aimed to compare the-outcome of morphometric anatomical examination with functional tests such as exercise tests and plethysmography for the detection of BOAS severity in a group of 84 French Bulldogs.
View Article and Find Full Text PDFCrit Care Explor
January 2025
Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University, Baltimore, MD.
Intermediate care (IC) is prevalent nationwide, but little is known about how to best organize this level of care. Using a 99-item cross-sectional survey assessing four domains (hospital and physical IC features, provider and nurse staffing, monitoring, and interventions/services), we describe the organizational heterogeneity of IC within a five-hospital healthcare system. Surveys were completed by nurse managers from 12 (86%) of 14 IC settings.
View Article and Find Full Text PDFGlob Epidemiol
June 2025
Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Brazil.
Unlabelled: COVID-19 is no longer a global health emergency, but it remains challenging to predict its prognosis.
Objective: To develop and validate an instrument to predict COVID-19 progression for critically ill hospitalized patients in a Brazilian population.
Methodology: Observational study with retrospective follow-up.
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