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Carey Timothy T Dwight D. Eisenhower Army Medical Center, Fort Gordon, - - 2014
Postoperative vision loss complicates an estimated 1 in 1100 prone, spine surgical cases. This complication has been attributed to ischemic optic neuropathy, with one proposed reason being perioperative elevations in intraocular pressure (IOP). Previous research has studied the effects of table inclination on intraocular pressure in awake volunteers, however, the ...
Griskevicius Julius J Vilnius Gediminas Technical University, Vilnius, - - 2014
The purpose of the paper is to present a dynamic model of bicyclist's lumbar spine for the evaluation of linear and angular variation of intervertebral distance in sagittal plane. Ten degrees of freedom biomechanical model of the spine was solved numerically. Larger loads acting on a cyclist spine occur mostly ...
Arts Mark P - - 2013
In anterior cervical spine surgery a retractor is obligatory to approach the spine. Previous studies showed an increase of endotracheal tube cuff pressure after placement of a retractor. It is known that high endotracheal tube cuff pressure increases the incidence of postoperative dysphagia, hoarseness, and sore throat. However, until now ...
Hong Kyung-Won - - 2013
Orthostatic hypotension (OH) is defined by a 20-mm Hg difference of systolic blood pressure (dtSBP) and/or a 10-mm Hg difference of diastolic blood pressure (dtDBP) between supine and standing, and OH is associated with a failure of the cardiovascular reflex to maintain blood pressure on standing from a supine position. ...
Thiele Robert H - - 2013
Abstract Respiratory variation in the arterial blood pressure and photoplethysmographic (PPG) waveforms have both been shown to predict the haemodynamic response to volume administration. Whether or not the two can be considered interchangeable is controversial. Twenty-three patients undergoing spine surgery received both a 20 gauge intra-arterial catheter and a Masimo ...
Oomens C W J - - 2013
Spine boards are used to immobilise accident victims suspected of having spinal injury. Guidelines about the maximum time patients remain on the board are often exceeded and on occasions may lead to pressure ulcers. Etiological research has shown that two processes ultimately lead to pressure ulcers:"Ischemic damage" which takes several ...
Mariappan Ramamani - - 2013
A hypersensitivity reaction, either anaphylactic or anaphylactoid, is a well-known adverse effect following intravenous and oral administration of vancomycin. The authors report a case of circulatory collapse and its management after the topical application of vancomycin powder during spinal instrumentation surgery. A 52-year-old woman with breast cancer and metastasis to ...
Bak Kathrine Holmgaard - - 2013
Color stability of minced cured restructured ham was studied by considering the effects of high pressure (HP) (600MPa, 13°C, 5min), raw meat pH24 (low, normal, high), salt content (15, 30g/kg), drying (20%, 50% weight loss), and residual oxygen level (0.02%-0.30%). Raw hams were selected by pH24 in Semimembranosus, mixed with ...
Colquhoun Douglas A - - 2013
Abstract The Tensys T-line uses tonometry to reproduce the arterial blood pressure tracing non-invasively. The purpose of this study was to assess the agreement between estimates of the T-line and an intra-arterial catheter (for both mean arterial pressure [MAP] and pulse pressure variation [PPV]) in the setting of spine surgery. ...
Mathai Koshy M - - 2012
BACKGROUND CONTEXT: To date, many studies have examined the effects of one or several factors on blood loss during lumbar spine surgery. The nature and extent of the operation, patient position, blood pressure, and a variety of factors related to patient size have been touted as predictors of blood loss. ...
Greve Line - - 2012
Common causes of poor performance in horses include factors related to the horse, the rider and/or the saddle, and their interrelationships remain challenging to determine. Horse-related factors (such as thoracolumbar region pain and/or lameness), rider-related factors (such as crookedness, inability to ride in rhythm with the horse, inability to work ...
Emler Charlotte - - 2012
Ankle-brachial index (ABI) assessment by Doppler is operator dependent and limited in calcified arteries. For the detection of peripheral arterial disease (PAD), we evaluated ABI and toe-finger (ToFi) pressures by infrared (IR) sensors at the digits and compared with standard Doppler (Doppler-ABI) in 100 patients with PAD and in 15 ...
Nicodème Frédéric - - 2012
High-resolution manometry (HRM) with esophageal pressure topography (EPT) allowed for the establishment of an objective quantitative measurement of esophagogastric junction (EGJ) relaxation, the integrated relaxation pressure (IRP). This study assessed whether or not a novel 3D-HRM assembly could improve on this measurement. Twenty-five normal subjects were studied with both a ...
O'Connor Patrick J - - 2012
We tested the hypothesis that intensive (systolic blood pressure [SBP] <120 mmHg) rather than standard (SBP 130-139 mmHg) blood pressure (BP) control improves health-related quality of life (HRQL) in those with type 2 diabetes. Subjects were 1,028 ACCORD (Action to Control Cardiovascular Risk in Diabetes) BP trial HRQL substudy participants ...
Ragauskas A - - 2012
To assess prospectively the accuracy and precision of a method for noninvasive intracranial pressure (ICP) measurement compared with invasive gold standard CSF pressure measurement. Included were 62 neurologic patients (37 idiopathic intracranial hypertension, 20 multiple sclerosis, 1 Guillain-Barré syndrome, 1 polyneuropathy, and 3 hydrocephalus). The average age was 40 ± ...
Soueidan Karen - - 2012
Current noninvasive blood pressure (BP) measurement methods, such as the oscillometric method, estimate the systolic and diastolic blood pressure (SBP and DBP) at two random instants in time and do not take into account the natural variability in BP. The standard for automated BP devices sets a maximum allowable system ...
Crim Matthew T - - 2012
Clear and consistent definitions of hypertension and hypertension control are crucial to guide diagnosis, treatment, and surveillance. A variety of surveillance definitions are in frequent use, resulting in variation of reported hypertension prevalence and control, even when based on the same data set. To assess the variety of published surveillance ...
Boesch R Paul RP Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229-3039, USA. - - 2012
Pressure ulcers are commonly acquired in pediatric institutions, and they are a key indicator of the standard and effectiveness of care. We recognized a high rate of tracheostomy-related pressure ulcers (TRPUs) in our ventilator unit and instituted a quality improvement program to develop and test potential interventions for TRPU prevention, ...
Muntner Paul - - 2012
J Clin Hypertens (Greenwich). 2012;14:165-171. ©2012 Wiley Periodicals, Inc. The association between within-visit variability of systolic blood pressure (SBP) and diastolic blood pressure (DBP) and all-cause and cardiovascular (CVD) mortality was examined using the Third National Health and Nutrition Survey (n=15,317). Three SBP and DBP readings were taken by physicians ...
Wilde James - - 2011
Contemporary standards of care, including many "quality improvement" and "pay-for-performance" measures, indicate that aggressive blood pressure control should be instituted in patients with type 2 diabetes. Is this consistent with the evidence? This was recently the topic of a Sioux Falls Family Residency Program Journal Club presentation, in which we ...
Li J - - 2011
Nano-patterning of graphene film by a novel approach making use of laser ablation generated pressure is presented in this paper. Arrays of nanoscale holes were fabricated by applying laser shock pressure on graphene film suspended on well trenches in silicon substrate. Round holes with diameters ranging from 50 to 200 nm ...
Li Hui - - 2012
The individual and combined effects of high-pressure carbon dioxide (HPCD), mild heat (MH) and nisin (200 ppm) on the inactivation of natural microorganisms, including aerobic bacteria (AB), yeasts and molds (Y&M), in litchi juice were evaluated. The samples were treated at a pressure of 10 MPa and temperatures of 32, 42 or ...
López Félix A - - 2011
This work reports the effect of pressure on the steam/oxygen gasification at 1000°C of the char derived from low temperature-pressure distillation of granulated scrap tyres (GST). The study was based on the analysis of gas production, carbon conversion, cold gas efficiency and the high heating value (HHV) of the product. ...
Sawada Yu - - 2011
To study the optic disc characteristics using the Heidelberg Retina Tomograph (HRT) II in normal Japanese subjects. A total of 1060 eyes of 530 normal subjects with reliable HRT images, who participated in the community health checkup in the city of Akita, Japan, were included in the study. Optic disc ...
Metzger Anja - - 2011
Hemorrhagic shock is a common cause of mortality and morbidity in the pediatric population. Intrathoracic pressure regulation (IPR) lowers intrathoracic pressure, thereby decreasing intracranial pressure and increasing venous return, cardiac output, and cerebral perfusion without the need for immediate fluid resuscitation. We hypothesized that IPR would improve hemodynamics and 24-h ...
Ganio Matthew S - - 2011
Despite frequent reporting of blood pressure (BP) during profound passive heat stress, both with and without a hypotensive challenge, the method by which BP is measured often varies between laboratories. It is unknown whether auscultatory and finger BP measures accurately reflect intra-arterial BP during dynamic changes in cardiac output and ...
Xu Guihua - - 2011
To evaluate if the ocular pulse amplitude (OPA) (the difference between systolic and diastolic intraocular pressure) is associated with the measurement variability of IOPg [Goldmann-correlated intraocular pressure (IOP)], IOPcc (corneal compensated IOP), corneal hysteresis (CH), and corneal resistance factor (CRF) obtained from the ocular response analyzer (ORA). Sixty normal participants ...
Lee Kwangmin - - 2011
The purpose of this study was to investigate the dimensional changes and phase transition of nanotubular titanium oxide arrays after heat treatment under an oxygen-containing atmosphere. The thermodynamic background for the oxidation of titanium to titanium oxide was theoretically investigated as a function of the oxygen partial pressure. The anodized ...
Ghigliotti Laura - - 2011
The Atlantic cod, Gadus morhua, is one of the most important species for commercial fisheries and a promising candidate for aquaculture. Precocious sexual maturation of males is one of the major issues compromising large scale production. The potential approaches to this problem include production of all female populations. Consequently, the ...
Cui Jian - - 2011
Whole-body heat stress compromises the control of blood pressure during an orthostatic challenge, although the extent to which this occurs can vary greatly between individuals. The mechanism(s) responsible for these varying responses remain unclear. This study tested the hypothesis that the individuals who are best able to tolerate an orthostatic ...
Zhu Feng - - 2011
A combined experimental and numerical study was conducted to determine a method to elucidate the biomechanical response of a head surrogate physical model under air shock loading. In the physical experiments, a gel-filled egg-shaped skull/brain surrogate was exposed to blast overpressure in a shock tube environment, and static pressures within ...
Omar S - - 2011
This prospective observational study evaluates the relationship between adrenaline, lactate and intensive care unit survival in septic shock. Forty patients requiring adrenaline therapy for a first episode of septic shock acquired > 24 hours after admission to the intensive care unit had blood lactate levels measured two-hourly over a 24-hour ...
Yanagi Masahide - - 2011
Glaucoma, one of the major causes of blindness in the world, is a progressive optic neuropathy. Elevated intraocular pressure is a well-known major risk factor for glaucoma. In addition, there is growing evidence that vascular factors may play a role in glaucoma pathogenesis. Systemic (e.g. hypertension, diabetes) and ocular vascular ...
Bonanno Fabrizio Giuseppe - - 2011
SHOCK SYNDROMES ARE OF THREE TYPES: cardiogenic, hemorrhagic and inflammatory. Hemorrhagic shock has its initial deranged macro-hemodynamic variables in the blood volume and venous return. In cardiogenic shock there is a primary pump failure that has cardiac output/mean arterial pressure as initial deranged variables. In Inflammatory Shock it is the ...
Boote Craig - - 2011
Retinopathy, globe enlarged (RGE) is an inherited genetic disease of chickens with a corneal phenotype characterized by loss of tissue curvature and changes in peripheral collagen fibril alignment. This study aimed to characterize the material behavior of normal and RGE chicken corneas under inflation and compare this with new spatial- ...
Millar J Cameron - - 2011
To characterize a technique that concurrently assesses all aqueous humor hydrodynamic parameters in mouse eyes. Mouse outflow facility (C) was determined by multiple flow-rate infusion and episcleral venous pressure (Pe) measured by manometry. The animals were then euthanatized, eliminating aqueous formation rate (Fin) and Pe. C was determined again (C(dead)) ...
Sung Kyung Rim - - 2011
To investigate the characteristics of visual field (VF) progression in medically treated normal-tension glaucoma (NTG) patients (Koreans) with unstable ocular perfusion pressure (OPP). One hundred one eyes of 101 NTG patients followed up for more than 4 years (mean follow-up, 6.2 years ± 12.1 months) were included. Modified Anderson criteria ...
Xu H - - 2011
Tissue anoxia is the main mechanism of the shock reaction. Here, the effect of hyperoxygenated solution (HOS) on acute haemorrhagic shock was studied in rabbits. At 60 min after shock, rabbits were infused intravenously with hyperoxygenated solution at 10 (HOS1 group) or 20 ml/kg (HOS2 group) or with Ringer's solution ...
Teng Tun-Ping - - 2011
This study analyzes the characteristics of alumina (Al2O3)/water nanofluid to determine the feasibility of its application in an air-cooled heat exchanger for heat dissipation for PEMFC or electronic chip cooling. The experimental sample was Al2O3/water nanofluid produced by the direct synthesis method at three different concentrations (0.5, 1.0, and 1.5 ...
Sehi Mitra - - 2011
To investigate the hypotheses that the topography of the optic nerve head (ONH) significantly changes during the day in untreated primary open-angle glaucoma (uPOAG) and healthy volunteers; and that there is a significant association with diurnal variations of intraocular pressure (IOP) and mean ocular perfusion pressure (MOPP). Fourteen uPOAG and ...
Koudryavtcev Sergey A - - 2011
Automatic blood pressure (BP) measuring devices are more and more often used in BP self-checks and in 24-hour BP monitoring. Nowadays, 24-hour BP monitoring is a necessary procedure in arterial hypertension treatment. The aim of this study was to validate the BPLab(®) ambulatory blood pressure monitor according to the European ...
Lee Sang-Suk - - 2011
To measure precise blood pressure (BP) and pulse rate without using a cuff, we have developed an arterial pulsimeter consisting of a small, portable apparatus incorporating a Hall device. Regression analysis of the pulse wave measured during testing of the arterial pulsimeter was conducted using two equations of the BP ...
Silva Serena - - 2011
The Surviving Sepsis Campaign guidelines suggest targeting a mean arterial pressure of at least 65 mm Hg to maintain organ perfusion pressure during septic shock. However, the optimal mean arterial pressure can be higher in patients with a history of hypertension or other vascular comorbidities or in those with increased ...
Brittain Kelly - - 2010
African American women are at greater risk for complications related to high blood pressure. This study examined relationships between high blood pressure, pulse pressure, body mass index, family adaptability, family cohesion and social support among 146 Urban African American women. Significant relationships were found between family adaptability and systolic blood ...
Berisha Fatmire - - 2010
There is a long-standing discussion about whether myopia is associated with decreased choroidal blood flow, as suggested by pneumotonometric measurements of pulsatile ocular blood flow (POBF). However, it has been noted previously that calculations of POBF depend on intraocular volume. In the present study we investigated this volume dependence through ...
Webers Carroll A B - - 2010
OBJECTIVE: To estimate the intraocular pressure (IOP)-lowering effect of prostaglandin analogs (PGAs) when added to topical β-blocker (BB) therapy. DESIGN: Systematic review and meta-analyses of randomized clinical trials. PARTICIPANTS: Twenty-nine articles reporting on 33 study arms and 3 control arms. METHODS: Articles published between January 1, 1990, and August 18, ...
Lee Princeton Wen-Yuan - - 2010
To evaluate the nighttime intraocular pressure (IOP) and blood pressure (BP) response to timolol treatment in patients with ocular hypertension or primary open-angle glaucoma. This was a meta-analysis of previously published studies that must have been randomized, prospective, crossover or parallel, single or double-masked trials. The treatment period must have ...
Hernández-Verdejo José Luis - - 2010
To simultaneously measure, using manometry, the changes of intraocular pressure (IOP) in the anterior chamber and in the vitreous cavity of a single porcine eye, induced by an external column of water. We prospectively measured IOP simultaneously in seven freshly enucleated porcine eyes in both the anterior chamber and the ...
Schiano Lomoriello Domenico - - 2011
To examine the repeatability of intra-ocular pressure (IOP) and central corneal thickness (CCT) measurements provided by the Tono-Pachymeter NT530P (Nidek, Japan), and to assess agreement of the device with Goldmann applanation tonometry (GAT) and ultrasound pachymetry (UP). Sixty-two normal eyes of 62 subjects were included in the study. Three sessions ...
Božić Marija - - 2010
Purpose: Vascular dysregulation is deemed a significant risk factor in glaucoma occurrence and progression. Capillaroscopy of the blood vessels on the finger nail-fold is a method that can provide information regarding the state of the vascular system at the capillary level. The aim of this pilot study was to determine ...
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