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      Correlación entre SO2/FiO2 y PaO2/FiO2 en pacientes con insuficiencia respiratoria en ventilación mecánica Translated title: Correlation between SO2 / FiO2 and PaO2 / FiO2 in patients with respiratory insufficiency in mechanical ventilation

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          Most cited references 13

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          Derivation and validation of Spo2/Fio2 ratio to impute for Pao2/Fio2 ratio in the respiratory component of the Sequential Organ Failure Assessment score.

          The Sequential Organ Failure Assessment (SOFA) score is validated to measure severity of organ dysfunction in critically ill patients. However, in some practice settings, daily arterial blood gas data required to calculate the respiratory component of the SOFA score are often unavailable. The objectives of this study were to derive Spo2/Fio2 (SF) ratio correlations with the Pao2/Fio2 (PF) ratio to calculate the respiratory parameter of the SOFA score, and to validate the respiratory SOFA obtained using SF ratios against clinical outcomes. We obtained matched measurements of Spo2 and Pao2 from two populations: group 1-patients undergoing general anesthesia and group 2-patients from the acute respiratory distress syndrome network-low-vs. high-tidal volume for the acute respiratory management of acute respiratory distress syndrome database. Using a linear regression model, we first determined SF ratios corresponding to PF ratios of 100, 200, 300, and 400. Second, we evaluated the contribution of positive end-expiratory pressure (PEEP) on the relationship between SF and PF, for patients on PEEP in centimeters of water (cm H2O) of 12. Third, we calculated the SOFA scores in a separate cohort of intensive care unit patients using the derived SF ratios and validated them against clinical outcomes. The total SOFA scores calculated using SF ratios and PF ratios were highly correlated (Spearman's rho 0.85, p 12 cm H2O, Spearman's rho 0.85, p < 0.001). The respiratory SOFA scores based on SF ratios and PF ratios correlated similarly with intensive care unit length of stay and ventilator-free days, when validated in a cohort of critically ill patients. The total and respiratory SOFA scores obtained with imputed SF values correlate with the corresponding SOFA score using PF ratios. Both the derived and original respiratory SOFA scores similarly predict outcomes.
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            Correlación de los índices PaO2/FiO2 y SpO2/FiO2 en el postoperatorio de la cirugía cardiaca en una Unidad de Terapia Posquirúrgica Cardiovascular

             SJ Rincón,  J Rincón (2013)
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              The use of the pulse oximetric saturation to fraction of inspired oxygen ratio in an automated acute respiratory distress syndrome screening tool


                Author and article information

                Revista Cubana de Investigaciones Biomédicas
                Rev Cubana Invest Bioméd
                ECIMED (Ciudad de la Habana, , Cuba )
                September 2018
                : 37
                : 3
                : 1-9
                Lima orgnameHospital Nacional Guillermo Almenara Perú
                orgnameClínica Montefiori Perú
                Lima orgnameUniversidad San Martín de Porres orgdiv1Centro de Investigación de Epidemiología Clínica y Medicina Basada en Evidencia Perú
                S0864-03002018000300002 S0864-0300(18)03700300002

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 21, Pages: 9
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