Results 311 to 320 of about 618,863 (353)

Nomenclature of Oxygen Saturation

1994
This paper addresses a controversial question relating to the definition of oxygen saturation as O2 content/O2 capacity: Whether, O2 capacity should include a) only oxyhemoglobin and deoxyhemoglobin, designated herein as O2Hb + HHb, or b) total hemoglobin, tHb = O2Hb + HHb + COHb + MetHb.
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[The physiopathology of oxygen venous saturation].

Minerva anestesiologica, 1992
The paper underlines the importance of continuous SvO2 monitoring by means of the insertion of a modified Swan-Ganz optic fibre catheter into the pulmonary artery. Following an analysis of the factors which regulate O2 transport and ATP formation, together with metabolism self-regulating mechanisms which intervene in periods of stress to guarantee ...
TUFANO R, GRAVINO, ELVIRA, PEZZA M.
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Oxygen Saturation in Children in the Postoperative Period

Anesthesia & Analgesia, 1992
Some adult patients have periods of significant oxygen desaturation after surgery but, other than for immediately after surgery in the recovery room, few data are available in children. We monitored overnight paired preoperative and postoperative oxygen saturations in 19 children, and overnight postoperative saturations in 50 additional children to ...
Mike Woodham, Adrian Lloyd-Thomas, Janet Stocks, Alison Leary, Donald C. Tyler   +4 more
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Skin Oxygen Saturation Imager

1997
The fraction of incident light which is returned from a turbid sample contains information about the pigments within the sample. Analysis of the spectra of this returned light allows detailed information of the relative quantity of these pigments to be determined.
D. J. Clark, B. Cater, T. J. H. Essex
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Oxygen Saturation and Retinopathy of Prematurity

Clinics in Perinatology, 2019
Retinopathy of prematurity (ROP) is a serious disease affecting premature infants. Rates of ROP increase with decreasing gestational age. Duration of oxygen exposure is correlated with ROP. Many studies evaluating oxygen have been performed to assess impact on ROP. This article describes recent findings for oxygen saturation target studies and suggests
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Thenar Muscle Oxygen Saturation Levels: A Surrogate for Central Venous Oxygen Saturation?

Clinical Pediatrics, 2019
Purpose. Shock is associated with increased tissue oxygen extraction. Near-infrared spectroscopy–derived thenar muscle tissue oxygenation (StO2) levels can provide an estimate of the oxygen supply-demand balance at the tissue level. We hypothesized that thenar StO2 levels would correlate with central venous oxygen saturation (ScvO2) levels, the gold ...
Ravi S. Samraj, Maria Kerrigan, Maria Mejia, Laura Wilson, James C. Fudge, Himesh V. Vyas, Dipankar Gupta   +6 more
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Oxygen saturation calculation procedures: A critical analysis of six equations for the determination of oxygen saturation

Intensive Care Medicine, 1989
Photometrically measured values of O2-saturation (SO2) were compared with SO2 predictions on the basis of the equations proposed by Heck, Kelman, Lutz, Marsoner, Severinghaus, and Siggaard-Andersen on 1350 occasions. Capillary, venous and mixed venous blood samples from 23 healthy subjects and 30 patients, suffering from cardio-pulmonary diseases were ...
Breuer Hw, H. Worth, H. Groeben, J. Breuer   +3 more
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Clinical applicability of the substitution of mixed venous oxygen saturation with central venous oxygen saturation

Journal of Cardiothoracic and Vascular Anesthesia, 2001
To examine the clinical applicability of substituting central venous oxygen saturation (ScvO2) for mixed venous oxygen saturation (SmvO2) in monitoring global tissue oxygenation.Prospective clinical investigation.University hospital.Seventy-three adult patients.Venous oxygen saturation was recorded, and oxygen saturation difference between SmvO2 and ...
Emre Camci, Ozkan Akinci, Simru Turnaoğlu, Perihan Erg¡n, Nahit Cakar, Mehmet Tugrul   +5 more
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Femoral venous oxygen saturation and central venous oxygen saturation in critically ill patients

Journal of Critical Care, 2015
To investigate the relationship between central venous oxygen saturation (ScvO(2)) and femoral venous oxygen saturation (SfvO(2)) in a large group of critically ill patients.Observational study.A group of unselected critically ill patients with central line placed into superior vena cava were included.A 26-bed intensive care unit in a tertiary referral
Jiandong Wang, Xiaohong Zhang, Youdai Chen, Yun Dong   +3 more
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Oxygen delivery and venous oxygen saturation monitoring

Hospital Medicine, 2003
Maintenance of adequate oxygen delivery is essential to ensure survival from shock, critical illness and major surgery. Impaired oxygen delivery can result in tissue hypoxia, anaerobic metabolism, lactic acid production and oxygen debt. If sustained, this sequence of events can lead to multiorgan failure and death.
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