نتایج جستجو برای: oxygenation index
تعداد نتایج: 415737 فیلتر نتایج به سال:
Position changing with blood distribution to different portions of lung can produce V/Q mismatch, and finally extend to oxygenation disruption. Thus, if position changing is done’ neglecting the patients’ pulmonary problem types, not only does it fail to cause oxygenation improvement, but it also induces gas exchange im...
ObjectiveNear infrared spectroscopy (NIRS) has been suggested as a new diagnostic tool in patients with lower extremity artery disease (LEAD). The aim of this systematic review was to summarise the impact exercise therapy on limb muscle oxygenation, evaluated by NIRS, LEAD, and give an overview NIRS instruments methodology.Data SourcesMEDLINE Embase.Review MethodsA search conducted MEDLINE Emba...
A term newborn with a hypocontractile myocardium complicating persistent pulmonary hypertension of the newborn was successfully treated with a low-dose phosphodiesterase III inhibitor milrinone. Echocardiography diagnosed heart failure with a left ventricular ejection fraction of 35% and a left ventricular shortening fraction of 18% and severe per...
Objective: Musculoskeletal disorders are a major part of occupational diseases in working environments. Prevention of the occurrence of these problems requires the use of ergonomic assessment techniques and intervention to improve working conditions. The purpose of this study was to investigate the prevalence of musculoskeletal disorders in workers in the blast furnace unit and the intervention...
benthic foraminiferal assemblages from maastrichtian strata, gansserina gansseri-abathamphalus mayaroensis planktonic foraminiferal zone, of the abtalkh formation at aitamir section (west of the kopeh-dagh basin) were investigated in order to evaluate the palaeoenvironmental changes (organic matter flux and bottom-water oxygenation). maastrichtian faunal assemblages are well preserved and diver...
BACKGROUND The available predictors of spontaneous-breathing-trial (SBT) success/failure lack accuracy. We devised a new index, the CORE index (compliance, oxygenation, respiration, and effort). OBJECTIVE To compare the CORE index to the CROP index (compliance, rate, oxygenation, and pressure), airway-occlusion pressure 0.1 s after the start of inspiratory flow (P(0.1)), and rapid shallow br...
Obesity impairs peri-operative lung function. To evaluate the impact of pressure support ventilation vs pressure controlled ventilation in moderately obese adults upon early postoperative lung function, we randomly assigned 68 moderately obese patients (body mass index 25-35 kg x m(-2)) undergoing minor surgery to receive intra-operative ventilation either with pressure support or pressure cont...
BACKGROUND Near infrared spectroscopy can be used in non-invasive monitoring of changes in skeletal muscle oxygenation in exercising subjects. OBJECTIVE To evaluate whether this method can be used to assess metabolic capacity of muscles. Two distinctive variables abstracted from a curve of changes in muscle oxygenation were assessed. METHODS Exercise on a cycle ergometer was performed by 18...
INTRODUCTION Synchronized low-frequency fluctuations in the resting-state functional MRI (fMRI) signal have been suggested to be associated with functional connectivity in brain networks (1). However, the underlying mechanism of this connectivity is still poorly understood. To better interpret the resting signal, we examined spontaneous fluctuations at the level of cerebral metabolic rate of ox...
The aim was to compare two conventional methods used to describe cerebral autoregulation (CA): frequency-domain analysis and time-domain analysis. We measured cerebral oxygenation (as a surrogate for cerebral blood flow) and mean arterial blood pressure (MAP) in 60 preterm infants. In the frequency domain, outcome variables were coherence and gain, whereas the cerebral oximetry index (COx) and ...
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