Mind the influence of arterial oxygen tension on central venous oxygen saturation
نویسندگان
چکیده
منابع مشابه
Mind the influence of arterial oxygen tension on central venous oxygen saturation
We read with great interest the study by Hernandez and colleagues published in Critical Care [1]. The study showed that central venous oxygen saturation (ScvO2) increased significantly in response to emergency intubation, and the authors suggested that the early normalization of ScvO2 after intubation might not be reliable to reflect successful resuscitation. However, they might have ignored th...
متن کاملValidity of Peripheral Capillary Oxygen Saturation and Normal Mixed Venous Oxygen Tension in Measurement of O2 Content
Background The change in venous oxygen saturation occurs earlier, and even its reduction is faster than arterial oxygen saturation. The aim of this study was to validate SvO2 and PvO2 for O2 content measurement in children hospitalized w...
متن کاملInfluence of Cardiac Output on the Correlation between Mixed Venous and Central Venous Oxygen Saturation
Sir,—Because there was close correlation between mixed venous (5vOj) and central venous (5cvOj) oxygen saturations in his study of largely elective cardiac surgical patients, Dr Berridge [1] asserted that 5cvOj may be used to estimate derived oxygen transport variables in emergency situations. This is in disagreement with previous studies [2] and, we feel, merits further comment. Statistically,...
متن کاملInfluence of cardiac output on the correlation between mixed venous and central venous oxygen saturation.
The influence of cardiac output on the correlation between central venous oxygen saturation and mixed venous oxygen saturation was assessed in 51 patients who had both a pulmonary artery catheter and separate central venous catheter in situ. Seventy-six paired samples were taken from the catheters and oxygen saturation measured immediately in a Ciba Corning 2500 Co-oximeter. Cardiac output was ...
متن کاملEffects of arterial oxygen tension and cardiac output on venous saturation: a mathematical modeling approach
OBJECTIVES Hemodynamic support is aimed at providing adequate O2 delivery to the tissues; most interventions target O2 delivery increase. Mixed venous O2 saturation is a frequently used parameter to evaluate the adequacy of O2 delivery. METHODS We describe a mathematical model to compare the effects of increasing O2 delivery on venous oxygen saturation through increases in the inspired O2 fra...
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ژورنال
عنوان ژورنال: Critical Care
سال: 2014
ISSN: 1364-8535
DOI: 10.1186/s13054-014-0569-y