oxygen extraction
Cortical Cerebral Blood Flow, Oxygen Extraction Fraction, and Metabolic Rate in Patients with Middle Cerebral Artery Stenosis or Acute Stroke
... The oxygen extraction fraction gradually increased in groups ...of oxygen remained at a normal ...of oxygen. Moreover, the oxygen extraction fraction and cerebral metabolic rate ...
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Oxygen Extraction Fraction and Stroke Risk in Patients with Carotid Stenosis or Occlusion: A Systematic Review and Meta Analysis
... RESULTS: After screening 2158 studies, 7 studies with 430 total patients with mean 30-month follow-up met inclusion criteria. We found that 6 of 7 studies were amenable to meta-analysis. Although 4 of the 6 studies ...
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Decreased oxygen extraction during cardiopulmonary exercise test in patients with chronic fatigue syndrome
... peak oxygen uptake per kilogram bodyweight and as percentage of predicted maximal oxygen uptake ...[17]. Oxygen extraction and ΔQ’/ΔV’O 2 were calculated ...
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Ventilation and Oxygen Extraction in the Bat Pteropus Gouldii During Rest and Steady Flight
... Tidal volume VT breathing frequency / and oxygen consumption j£8 were simultaneously measured in the bat Pteropus gouldii during quiet rest at 24 °C, and oxygen extraction E values were [r] ...
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PATTERNS OF HUMAN MYOCARDIAL OXYGEN EXTRACTION DURING REST AND EXERCISE
... Because the in left great variability value of coronary venous oxygen saturation was ventricular exercise performance during tension higher in the coronary insufficiency group than in th[r] ...
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Perfusion independent oxygen extraction in myoglobin rich hearts
... Myoglobin-rich sea raven hearts and myoglobin-poor ocean pout hearts were isolated and perfused at varying flow rates and under conditions of low and high oxygen demand to assess the rol[r] ...
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Cerebral Oxygen Saturation and Extraction in Preterm Infants With Transient Periventricular Echodensities
... tissue oxygen saturation and fractional tissue oxygen extraction ...tissue oxygen saturation was lower in preterm infants with transient periventricular echodensities (66%) compared with ...
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The effects of intra aortic counterpulsation on cardiac performance and metabolism in shock associated with acute myocardial infarction
... perfusion, and probably improves myocardial contractility in the severely diseased heart. Before treatment, decreases in cardiac index (mean value, 1.22 liter/min per m 2 ), systolic ejection rate (67 ml/sec), and ...
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PubMedCentral-PMC5302846.pdf
... and oxygen metabolism leading to increased oxygen extraction fraction (OEF) is associated with a marked increased risk of stroke in patients with symptomatic carotid artery ...
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The effects of dopamine and epinephrine on hemodynamics and oxygen metabolism in hypoxic anesthetized piglets
... Methods: The effects on the systemic, pulmonary, hepatic, and mesenteric circulations of infusions of dopamine and epinephrine (adrenaline) were compared in 17 newborn piglets. Three groups [control (n = 5), dopamine (n ...
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Cerebral Oxygenation and Electrical Activity After Birth Asphyxia: Their Relation to Outcome
... ation of the brain, and the decrease of FTOE, an estima- tor of oxygen extraction of the brain tissue, in the infants with adverse neurodevelopmental outcome can be 2-fold. First, it may indicate a birth ...
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Effects of a Cardiac Rehabilitation Program in Patients with Congenital Heart Disease
... and/or oxygen extraction during exercise, improving heart rate recovery following peak exercise and they also found an improvement in self- esteem and emotional ...
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Quantitative evaluation of oxygen metabolism in the intratumoral hypoxia: 18F-fluoromisonidazole and 15O-labelled gases inhalation PET
... of oxygen diffusion (100–200 μm) away from blood vessels ...intratumoral oxygen metabolism is heterogeneous depending on the tumor microenvironment and quantitative measurement of oxygen consumption ...
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Hemodynamics, coronary blood flow, and myocardial metabolism in coronary shock; response to l norepinephrine and isoproterenol
... Myocardial oxygen extraction was above 70% and coronary sinus oxygen tension was below 22 mm Hg in most of the ...abnormal oxygen pattern in spite of sampling of mixed coronary venous blood ...
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A comparative analysis of predictive models of morbidity in intensive care unit after cardiac surgery – Part II: an illustrative example
... The Bayes quadratic model had the highest discrimination capacity on test data, using the minimum number of fea- tures (oxygen extraction, oxygen delivery and need for car- diac inotropic drugs after ...
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MEASUREMENT OF VENTILATION VOLUME IN SWIMMING TUNAS
... In some fish, oxygen extraction % varied markedly with the position of the sampling catheter and percent extraction determined from catheters could even vary between trials in a single f[r] ...
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Diaphragmatic blood flow and energy expenditure in the dog Effects of inspiratory airflow resistance and hypercapnia
... the oxygen requirements of the diaphragm were met by a combination of increased [A-V]O2 di and Q ...muscles, oxygen extraction tended to plateau at peak loads, whereas blood ...
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Cerebral Oxygen Metabolism in Newborns
... blood volume (CBV, mL 100 g’), cerebral oxygen extraction fraction (OEF), and cerebral metabolic rate of oxygen consumption (CMRO,. mL 100 g-’ min’)[r] ...
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A STUDY OF MINUTE TO MINUTE CHANGES OF ARTERIO VENOUS OXYGEN `CONTENT DIFFERENCE, OXYGEN UPTAKE AND CARDIAC OUTPUT AND RATE OF ACHIEVEMENT OF A STEADY STATE DURING EXERCISE IN RHEUMATIC HEART DISEASE
... On exsubjects N9, and N10 showed a considerable in- ercising the combination of anemia, and the increase of oxygen extraction in the early minutes caused of exercise and, by the fifth mi[r] ...
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Prominence of Medullary Veins on Susceptibility Weighted Images Provides Prognostic Information in Patients with Subacute Stroke
... Our first hypothesis, based on the results of previous studies, was that prominent ipsilateral MV are prognostic biomarkers of poor outcome in patients with subacute ischemic stroke. This is based on an assumption that ...
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