OBJECTIVE To investigate the effect of body position on oxygen saturation in the acute stages post stroke. DESIGN Systematic review. METHODS Databases: PREMEDLINE and MEDLINE, Psychinfo, EMBASE, CINAHL, PEDro, all EBM Reviews and Scottish Intercollegiate Guidelines Network (SIGN). KEYWORDS combinations of cerebrovascular accident/stroke/hemiplegia/ cerbrovascular disorders and position or...

OBJECTIVE To determine the effects of temazepam on the quality of sleep and on oxygen saturation during sleep in subjects at high altitude. DESIGN Randomised, blinded, crossover, placebo controlled trial. SETTING Base camp at Mount Everest (altitude 5300 m). SUBJECTS 11 members of British Mount Everest Medical Expedition recently arrived at base camp. INTERVENTION Participants were rand...

PURPOSE Glaucoma may involve disturbances in retinal oxygenation and blood flow. The purpose of this study was to measure the effect of glaucoma filtration surgery on retinal vessel oxygen saturation. METHODS A noninvasive spectrophotometric retinal oximeter was used to measure hemoglobin oxygen saturation in retinal arterioles and venules before and after glaucoma filtration surgery. Twenty-...

An EKV-based high voltage MOSFET model is presented. The intrinsic channel model is derived based on the charge based EKVformalism. An improved mobility model is used for the modeling of the intrinsic channel to improve the DC characteristics. The model uses second order dependence on the gate bias and an extra parameter for the smoothening of the saturation voltage of the intrinsic drain. An i...

The contribution of water to the quantitative determination of hemoglobin concentration and saturation by near-infrared spectroscopy in turbid media was investigated. The study consisted of in vitro measurements of an aqueous suspension containing Liposyn, bovine blood, and yeast buffered at pH 7.2. The optical coefficients of the medium (ma;0.03 to 0.08 cm −1, ms8 ; 6 cm −1 at wavelengths of 7...

We report a case of coarctation of aorta with previous caesarean section who underwent elective caesarean section under combined spinal epidural anaesthesia (CSEA). By continuous monitoring of oxygen saturation in lower limb, perfusion of the body below coarctation site was assessed. Good oxygen saturation in the lower limbs meant good foetal perfusion and good perfusion of vital organs. Thus o...

c Oxygen is a treatment for hypoxaemia, not breathlessness. (Oxygen has not been shown to have any effect on the sensation of breathlessness in non-hypoxaemic patients.) c The essence of this guideline can be summarised simply as a requirement for oxygen to be prescribed according to a target saturation range and for those who administer oxygen therapy to monitor the patient and keep within the...

introduction: this study aimed to investigate the effect of music on pain, anxiety and vital signs in children undergoing colonoscopy.   method and materials: this randomized study was carried out on 101 children (7 to 14 years old) requiring colonoscopy. children were randomly allocated to a control or case group. the case group was played relaxing music (by clayderman) during the procedure. s...

Over the past 100 years, human activity has greatly changed the rate of atmospheric N (nitrogen) deposition in terrestrial ecosystems, resulting in N saturation in some regions of the world. The contribution of N saturation to the global carbon budget remains uncertain due to the complicated nature of C-N (carbon-nitrogen) interactions and diverse geography. Although N deposition is included in...