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Pelzer N N Department of Neurology, Leiden University Medical Center, Leiden, The - - 2014
The most frequent complication of lumbar puncture is post lumbar puncture headache (PLPH). Recent studies confirmed that the use of atraumatic spinal needles significantly reduces the risk of PLPH. However, the majority of neurologists still use traumatic needles, possibly caused by misconceptions and beliefs about practical performance of atraumatic spinal ...
Ham Wietske W From the University Medical Center (W.H., M.J.S., L.P.H.L.), Utrecht; and Scientific Institute for Quality of Healthcare (IQ Healthcare) (L.S.), Radboud University Medical Center, Nijmegen, the Netherlands; and Faculty of Health Sciences (L.S.), University of Southampton, Southampton, United - - 2014
To protect the (possibly) injured spine, trauma patients are immobilized on backboard or vacuum mattress, with a cervical collar, lateral headblocks, and straps. Several studies identified pressure ulcer (PU) development from these devices. The aim of this literature study was to gain insight into the occurrence and development of PUs, ...
Mano Tomoo T From the Department of Neurology (T.M., M.K., H.B., K.S., N.S., A.H., A.A., H.W., G.S.), Nagoya University Graduate School of Medicine; Institute for Advanced Research (H.B.), Nagoya University; and Department of Speech Pathology and Audiology (S.T., M.Y.), Aichi-Gakuin University School of Health Science, Nagoya, - - 2013
This study aimed to explore the reliability and validity of tongue pressure measurement as a quantitative evaluation of swallowing function in patients with spinal and bulbar muscular atrophy (SBMA). This study enrolled 47 genetically confirmed patients with SBMA and 38 age- and sex-matched healthy controls. In both groups we measured ...
Hodgson Sarah A SA Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford OX1 3QR, UK. - - 2013
The molecular framework Ag(tcm) (tcm(-) = tricyanomethanide) expands continuously in two orthogonal directions under hydrostatic compression. The first of its kind, this negative area compressibility behaviour arises from the flattening of honeycomb-like layers during rapid pressure-driven collapse of the interlayer separation.
Barz Thomas - - 2013
The sedimentation sign (SedSign) has been shown to discriminate well between selected patients with and without lumbar spinal stenosis (LSS). The purpose of this study was to compare the pressure values associated with LSS versus non-LSS and discuss whether a positive SedSign may be related to increased epidural pressure at ...
Kumar Akash - - 2013
Intraoperative neuromonitoring of somatosensory evoked potentials (SSEPs) can allow identification of evolving neurologic deficit. However, SSEP deterioration is not always associated with postoperative deficit. Transient physiologic changes, including a decrease in blood pressure (BP), can result in signal deterioration, defined as a decrease in waveform amplitude of >50 % seen without ...
Fassoulaki Argyro - - 2013
Abstract Objectives: To investigate the effect of spinal anesthesia on cerebral rSO2 during elective cesarean delivery (CD). Methods: Thirty-four women scheduled for elective CD under spinal anesthesia were recruited. In the operating room rSO2 of the left and right forehead and right thigh was recorded using three disposable sensors. 1.8-2.0 ...
Ping Y - - 2013
Dynamic compression by multiple shocks is used to compress iron up to 560 GPa (5.6 Mbar), the highest solid-state pressure yet attained for iron in the laboratory. Extended x-ray absorption fine structure (EXAFS) spectroscopy offers simultaneous density, temperature, and local-structure measurements for the compressed iron. The data show that the close-packed structure ...
Woodall Christopher H - - 2013
Growing under pressure: High-pressure crystallographic and Raman spectroscopic studies show that crystals of the linear digold complex [(C6 F5 Au)2 (μ-1,4-diisocyanobenzene)] undergo substantial negative linear compression over the pressure range from ambient to 4.39 GPa.
Wang Yang - - 2013
Vertebroplasty (VP) and kyphoplasty (KP) are emerging procedures for almost immediate pain relief when treating osteoporotic or osteolytic fractures. The main reported complication is polymethylmethacrylate (PMMA) leakage, which may lead to compression of neural structures or embolism. Different authors have proposed that intravertebral pressure (IP) is an important factor determining ...
Rubio-Martínez L M - - 2013
Increased intraosseous pressure (IOP) is a well-characterized source of pain in humans that can be successfully treated by medullary decompression. This report describes the clinical and diagnostic findings, treatment and successful outcome of a horse with a four week long, non-weight bearing lameness secondary to suspected traumatically-induced increased IOP in ...
Bruijns Stevan R SR Division of Emergency Medicine, University of Cape Town, Cape Town, South Africa. - - 2013
Vital signs remain important clinical indicators in the management of trauma. Tissue injury and ischemia cause tachycardia and hypertension, which are mediated via the sympathetic nervous system (SNS). Spinal immobilization is known to cause discomfort, and it is not known how this might influence the SNS and contribute to abnormal ...
Pellicer-Porres J - - 2013
We present the results of x-ray diffraction and x-ray absorption spectroscopy experiments in CuAlO(2) under high pressure. We discuss the polarization dependence of the x-ray absorption near-edge structure at the Cu K-edge. XRD under high pressure evidences anisotropic compression, the a-axis being more compressible than the c-axis. EXAFS yields the copper-oxygen ...
Wang Chunlei - - 2013
The most obvious difference of packed column supercritical fluid chromatography (pSFC) from HPLC is the use of CO(2) with an elevated column back pressure. However, how back pressure affects SFC separations using methanol/CO(2) binary mobile phase has neither been thoroughly studied experimentally, nor well understood in theory. We studied the ...
Suwabe Tatsuya - - 2013
We performed autopsy on a 60-year-old Japanese man who had received dialysis for 42 years. He started on intermittent peritoneal dialysis in 1968, which was combined with hemodialysis in 1969. His serum calcium-phosphate balance and his blood pressure had been controlled well. Carpal tunnel syndrome occurred in 1984. Then lumbar ...
Rajasekharan Chandrasekharan - - 2013
A 14-year-old girl was referred for evaluation of headache with episodes of transient blurring of vision, and intermittent fever for 4 weeks. On examination she was conscious and febrile, with multiple annular purpuric skin lesions present over the face and back. Neurological examination revealed a bilaterally extensor plantar response, with ...
Longhurst John C - - 2013
Although mechanisms underlying acupuncture regulation of pain have been studied by a number of laboratories in many countries, much less is known about its ability to modulate cardiovascular function. In the last two decades, our laboratory has systematically investigated the peripheral and central neural mechanisms underlying acupuncture regulation of blood ...
Oluremi Bolaji Bosede - - 2012
Gums are used as binders in tablets and also as emulsion stabilisers, suspending agents and thickeners in syrups. The need for other natural gums apart from the conventional gums to be employed as binding agents in tablets formulation led to this study. A gum obtained from the incised trunk of ...
Voelkel Norbert F - - 2013
Pathobiological mechanisms that contribute to pulmonary vasoconstriction, lung vascular remodeling, and the development of right heart failure include the generation of reactive oxygen and nitrogen species and the response of lung vascular and cardiac cells to these molecules. We review the information regarding oxidant stress balanced by antioxidant mechanisms and ...
Heiss John D - - 2012
The pathogenesis of syringomyelia in patients with an associated spinal lesion is incompletely understood. The authors hypothesized that in primary spinal syringomyelia, a subarachnoid block effectively shortens the length of the spinal subarachnoid space (SAS), reducing compliance and the ability of the spinal theca to dampen the subarachnoid CSF pressure ...
Kuneš J - - 2012
Hypertension is one of the major risk factor of cardiovascular diseases, but after a century of clinical and basic research, the discrete etiology of this disease is still not fully understood. One reason is that blood pressure is a quantitative trait with multifactorial determination. Numerous genes, environmental factors as well ...
Leung W T - - 2012
Negative pressure isolation wards are essential infection control facilities against airborne transmissible diseases. Airborne infectious particles are supposed to be contained in the isolation room. However, negative pressure may break down by door opening action or by human movement. Understanding the inter-zonal transport of airborne infectious particles in the isolation ...
Breen Barbara J - - 2012
Airway hyper-responsiveness (AHR), a hallmark of asthma, is a highly complex phenomenon characterised by multiple processes manifesting over a large range of length and time scales. Multiscale computational models have been derived to embody the experimental understanding of AHR. While current models differ in their derivation, a common assumption is ...
Dalio M B - - 2012
AIM: On the average, 15% to 25% of peripheral grafts and 10% to 30% of coronary grafts fail within 5 years. Changes in mechanical forces to which the vein is subjected could be an explanation for this phenomenon. We submitted human saphenous vein segments to non-pulsatile ex vivo perfusion with ...
Lou Fangfei - - 2012
Human norovirus (NoV) is the leading cause of nonbacterial acute gastroenteritis epidemics worldwide. High-pressure processing (HPP) has been considered a promising nonthermal processing technology to inactivate food- and waterborne viral pathogens. Due to the lack of an effective cell culture method for human NoV, the effectiveness of HPP in inactivating ...
Hsu Geng-Long - - 2012
The human erectile mechanism is an intricate interplay of hormonal, vascular, neurological, sinusoidal, pharmacological, and psychological factors. However, the relative influence of each respective component remains somewhat unclear, and merits further study. We investigated the role of venous outflow in an attempt to isolate the key determinant of erectile function. ...
Guagliardo Nick A - - 2012
Idiopathic primary hyperaldosteronism (IHA) and low-renin essential hypertension (LREH) are common forms of hypertension, characterized by an elevated aldosterone-renin ratio and hypersensitivity to angiotensin II. They are suggested to be 2 states within a disease spectrum that progresses from LREH to IHA as the control of aldosterone production by the ...
Berry David A - - 2012
Phonation threshold pressure is an objective measure of the relative ease of phonation. Previous studies of the in vivo canine larynx have reported values of phonation threshold pressure in the range of 3.5-5.5 kPa. Such studies are often cited to argue that canine and human vocal fold physiology may differ ...
Novembre John - - 2012
The past few years of research in human evolutionary genetics have provided novel insights and questions regarding how human adaptations to recent selective pressures have taken place. Here, we review the advances most relevant to understanding human evolution in response to pathogen-induced selective pressures. Key insights come from theoretical models ...
Jun E J - - 2012
To evaluate the efficiency of a hydrogel adherent ocular bandage for sealing of scleral tunnel incisions in human eye globes. A 4-mm scleral tunnel incision was made in each of 10 globes and bursting pressure was measured using the Seidel test to check for wound leakage. Globes were sealed using ...
Macdonald Andrew S - - 2012
This is an essay highlighting the fundamental importance of agriculture (historical and present) in the agro-socioeconomic evolution of human societies, from the times of the hunter/gatherers to the modern day. Attention is drawn in the text to the importance of deforestation in relation to micro and macro climate changes, and ...
Jennings J Richard - - 2012
Accumulating evidence from animal models and human studies of essential hypertension suggest that brain regulation of the vasculature is impacted by the disease. Human neuroimaging findings suggest that the brain may be an early target of the disease. This observation reinforces earlier research suggesting that psychological factors may be one ...
Iyer Padma - - 2012
Primary open-angle glaucoma is the second leading cause of blindness in the United States and is commonly associated with elevated intraocular pressure (IOP) resulting from diminished aqueous humor (AH) drainage through the trabecular pathway. Developing effective therapies for increased IOP in glaucoma patients requires identification and characterization of molecular mechanisms ...
Esbenshade Adam J - - 2011
Obesity and hypertension are reported among survivors of pediatric acute lymphoblastic leukemia (ALL). However, little is known about the trajectory of body mass index (BMI) and blood pressure over the course of ALL therapy. In a retrospective cohort of 183 pediatric ALL patients diagnosed from 2000 to 2008, prevalence, severity, ...
Greenfield J R - - 2011
Obesity has reached epidemic proportions worldwide. Sympathetic nervous system activation has been shown to play a major role linking obesity to the development of associated metabolic complications, such as hypertension. Recent evidence has implicated central melanocortin signalling in the regulation of blood pressure in rodents and humans. The importance of ...
Hinderliter Alan L - - 2011
Lifestyle modifications, including adoption of the Dietary Approaches to Stop Hypertension (DASH) dietary pattern, weight loss in individuals who are overweight or obese, and physical activity, are effective in the prevention and treatment of hypertension. A healthy lifestyle may also have beneficial effects on metabolic abnormalities, such as insulin resistance, ...
Fradet Laetitia - - 2011
To investigate the feasibility of using pressure mapping for the characterisation of the seated posture of children with cerebral palsy (CP). Analysis of pressure mapping readings and video of children seated in a seating system during two assessments: The first assessment involved the pressure mapping of non-disabled children during a ...
De Rossi Stefano Marco Maria - - 2011
A sensory apparatus to monitor pressure distribution on the physical human-robot interface of lower-limb exoskeletons is presented. We propose a distributed measure of the interaction pressure over the whole contact area between the user and the machine as an alternative measurement method of human-robot interaction. To obtain this measure, an ...
Vohr Betty R - - 2010
 To assess the blood pressure of former preterm and term matched adolescent controls and to identify risk factors associated with blood pressure at 16 years.   Observational cohort study. Secondary analysis of a randomized clinical trial. Three academic centres participating in the Multicenter Indomethacin IVH Prevention Trial.   A total ...
Kavey Rae-Ellen W - - 2010
Hypertension in childhood is now recognized to be a common and serious problem with a prevalence of 2% to 5%. Large epidemiologic studies have established normative tables for blood pressure beginning in early childhood based on age, gender, and height. Making a diagnosis of hypertension in a child or adolescent ...
Ibrahim Hassan N - - 2010
Obesity is being increasingly implicated as an independent risk factor for the development of chronic kidney disease (CKD), raising the question whether reversing obesity can be utilized as a mainstay or an adjunct therapy for CKD and possibly for its prevention. The purpose of this review is to examine the ...
Sabo Roy Travis RT Department of Biostatistics, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA. - - 2010
Several studies have shown that causes of adult hypertension arise in childhood, and obesity may be a potential cause or at least a mitigating factor in this development. Body mass index is a well studied obesity metric, yet other potential adiposity measures such as percent body fat and waist circumference ...
Santos José L F - - 2011
We investigated the impact of obesity on the abnormalities of systolic and diastolic regional left ventricular (LV) function in patients with or without hypertension or hypertrophy, and without heart failure. We studied 120 individuals divided into 6 groups of 20 patients (42 ± 6 years, 60 females) using standard and ...
Bruce Marino A - - 2011
Obesity is a biological risk factor or comorbidity that has not received much attention from scientists studying hypertension among African American men. The purpose of this study was to examine the relationship between weight status and high blood pressure among African American men with few economic resources. The authors used ...
Vlasova M - - 2010
It has been well documented that obesity is a major risk factor for the development of the hypertensive state. The correlation between body mass index and blood pressure level is well established. Nevertheless, the exact mechanisms which contribute to obesity-related hypertension remain poorly understood. In the last years, we have ...
Fujita Yuki - - 2010
Blood pressure examinations for health education use have been conducted at several schools in Japan. It has been reported that blood pressure is closely associated with bodyweight and height in US children. The aim of the present paper was to evaluate the association between height and blood pressure in Japanese ...
Menezes Ana M B - - 2010
The aim of this study was to evaluate concurrent risk factors for high blood pressure in adolescents. This is a prospective cohort study including 4,452 adolescents born in Pelotas, Rio Grande do Sul State, Brazil, in 1993. Blood pressure was measured before and after the interview, and the mean value ...
Brajković Ana Vujaklija - - 2010
A case series of 12 obese patients admitted to medical intensive care unit (ICU) due to life-threatening diseases and the influence of weight loss on cardiovascular parameters is presented. We assessed body weight, body mass index (BMI), blood pressure, pulse, and laboratory values on admission. At discharge from ICU patients ...
Rafraf Maryam - - 2010
BACKGROUND: There are few studies of the prevalence of elevated blood pressure that include Iranian adolescent girls. OBJECTIVE: The aim of this cross-sectional study was to determine the blood pressure status and its relationship with body mass index (BMI) in adolescent girls attending high school in Tabriz, Iran. METHODS: A ...
Xie Liangdi - - 2010
We investigated the association between echocardiographic (Echo) left ventricular mass (LVM) indexed to body surface area (LVM/BSA) or height(2.7) (LVM/H(2.7)) and electrocardiographic (ECG) variables in 546 Chinese hypertensives. The study group was stratified by gender and by BMI into obese (BMI > or =28 kg/m(2)), overweight (BMI > or =24 ...
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