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Randsoe Thomas - - 2012
The standard treatment of altitude decompression sickness (aDCS) caused by nitrogen bubble formation is oxygen breathing and recompression. However, micro air bubbles (containing 79% nitrogen), injected into adipose tissue, grow and stabilize at 25 kPa regardless of continued oxygen breathing and the tissue nitrogen pressure. To quantify the contribution of ...
Björn Lars Olof - - 2012
Breeding birds have to divide their time between egg incubation and foraging. Particularly in cases when only one parent incubates the eggs, and especially in cold climates, the cooling of the eggs during absence from the nest may be problematic. In the present study we find that the thermal emissivity ...
van Ooij P J A M - - 2012
Breathing oxygen with a partial pressure of > 50 kPa can cause pulmonary oxygen toxicity (POT). Diffusing capacity for carbon monoxide (DL(CO)) is thought to be a more sensitive indicator of POT than vital capacity (VC). Because diffusing capacity can be measured more specifically using nitric oxide (DL(NO)), we hypothesized ...
Jaspers Cornelia - - 2012
The comb jelly Mertensia ovum, widely distributed in Arctic regions, has recently been discovered in the northern Baltic Sea. We show that M. ovum also exists in the central Baltic but that the population consists solely of small-sized larvae (less than 1.6 mm). Despite the absence of adults, eggs were ...
Day Rusty Davis - - 2012
Elevated mercury concentrations ([Hg]) were found in Alaskan murre (<italic>Uria spp.</italic>) eggs from the coastal embayment of Norton Sound relative to insular colonies in the northern Bering Sea-Bering Strait region. Stable isotopes of Hg, carbon, and nitrogen were measured in the eggs to investigate the source of this enrichment. Lower ...
Koeken Yvette - - 2012
Aims At present, it is unknown why patients suffering from severe pulmonary hypertension (PH) benefit from atrial septostomy (AS). Suggested mechanisms include enhanced filling of the left ventricle, reduction of right ventricular preload, increased oxygen availability in the peripheral tissue, or a combination. A multi-scale computational model of the cardiovascular ...
Berner Marion - - 2012
Introduction: Small animal models are widely used in basic research. However, experimental systems requiring extracorporeal circuits are frequently confronted with limitations related to equipment size. This is particularly true for oxygenators in systems with limited volumes. Thus we aimed to develop and validate an ultra mini-oxygenator for low-volume, buffer-perfused systems. ...
van der Kaaij Niels P - - 2012
BACKGROUND: This study investigated the optimal alveolar oxygen concentration and inflation pressure during ischemia that reduces lung ischemia-reperfusion injury (LIRI). METHODS: Male Sprague-Dawley rats (n = 66) underwent 150 minutes of left lung ischemia by hilar clamping at an airway inflation pressure (P) of 5 or 30 cm H(2)O and ...
Smith Cameron R - - 2012
Decompression sickness (DCS) results from a decrease in ambient pressure leading to supersaturation of tissues with inert gas and bubble formation. Perfluorocarbons (PFCs) are able to dissolve vast amounts of non-polar gases. Intravenous (IV) PFC emulsions reduce both morbidity and mortality associated with DCS, but the mechanism of this protective ...
Najafi Anaraki Abdolreza A Department of Anesthesiology and Intensive Care Unit, Faculty of Medicine, Bushehr University of Medical Sciences, Bushehr, - - 2012
Clinical investigations have reported several anesthetic properties of intrathecal injections of meperidine. The purpose of this study was to investigate the effect of adding meperidine to intrathecal heavy lidocaine on hemodynamic changes and blood loss in patients undergoing elective suprapubic open prostatectomy. In a randomized double-blind clinical trial, 77 patients ...
Xu Zhong-Tang - - 2012
LaMnO(3) (LMO) films are deposited on SrTiO(3) :Nb (0.8 wt%) substrates under various oxygen pressures to obtain different concentrations of oxygen vacancies in the films. The results of X-ray diffraction verify that with a decrease of the oxygen pressure, the c-axis lattice constant of the LMO films becomes larger, owing ...
Sun Jian - - 2012
Computational searches for structures of solid oxygen under high pressures in the multi-TPa range are carried out using density-functional-theory methods. We find that molecular oxygen persists to about 1.9 TPa at which it transforms into a semiconducting square-spiral-like polymeric structure (I4_{1}/acd) with a band gap of ∼3.0  eV. Solid oxygen forms a ...
Hong Minyoung - - 2012
The distribution of partial oxygen pressure (pO(2)) is analyzed for the anterior aspect of the left wrist with an amperometric oxygen microsensor composed of a small planar Pt disk-sensing area (diameter = 25 μm). The pO(2) levels vary depending on the measurement location over the wrist skin, and they are systematically ...
Barnikol Wolfgang K R - - 2012
The basis for the new procedure is the simultaneous transcutaneous measurement of the peri-ulceral oxygen partial pressure (tcPO(2)), using a minimum of 4 electrodes which are placed as close to the wound margin as possible, additionally, as a challenge the patient inhales pure oxygen for approximately 15 minutes. In order ...
Kelishadi Roya - - 2011
Pediatric pre-hypertension (pre-HTN) has a complex multifactorial etiology. Although most cases are secondary to other disorders, a substantial number of children and adolescents have primary or essential HTN and pre-HTN. The gene-gene and gene-environment interactions should be considered in this context. The strong relationship of pre-HTN with environmental factors such ...
Oto M Ali - - 2011
We evaluated the effect of a nationwide media campaign on hypertension awareness in the population, which was implemented with the aim of spreading key messages related to optimal blood pressure levels and encouraging blood pressure measurements. A nationwide project called "12/8 Awareness Campaign" was implemented between October 2005 and January ...
Brisson Paul - - 2010
In 1961, Sellick described a three-finger technique of cricoid pressure used to prevent gastric regurgitation during induction of anesthesia. The "Sellick maneuver" is now used worldwide. The authors have observed great variability in the application of cricoid pressure by health care providers and have suspected that misapplication occurs. The objectives ...
Leung W Y - - 2010
Based on the application of Laplace's law to compression garments, an equation for predicting garment pressure, incorporating the body circumference, the cross-sectional area of fabric, applied strain (as a function of reduction factor), and its corresponding Young's modulus, is developed. Design procedures are presented to predict garment pressure using the ...
Hyde T P - - 2010
The objective of the research was to assess patient preference for a selective pressure impression technique for complete dentures by means of a Randomised Controlled Clinical Trial (RCT). A literature review revealed no reported RCT's of selective pressure impressions for complete dentures. A cross-over, randomised, controlled, clinical trial was performed ...
Morioke Satoshi - - 2010
Delayed pressure urticaria (DPU) is characterized by deep dermal wheals that appear in response to a local continuous pressure. Although it has been reported to complicate as many as 40% of cases of Caucasian patients with chronic urticaria, no definitive cases of Asian/Japanese patients have been reported in English literature. ...
Harris Tim - - 2010
This is the first study to look at the effects of cricoid pressure/laryngeal manipulation on the laryngeal view and intubation success in the emergency or pre-hospital environment. Cricoid pressure is applied in the hope of reducing the incidence of aspiration. However the technique has never been evaluated in a randomized ...
Malloy-McFall Joan - - 2010
Dietary Approaches to Stop Hypertension (DASH) has been shown to successfully reduce systolic (SBP) and diastolic blood pressure (DBP) when evaluated in clinically controlled environments but there is a lack of information regarding the efficacy of the original DASH diet when it is applied in a free-living environment. To provide ...
Priebe H J - - 2009
Nearly 40 years ago, cricoid pressure (CP) was introduced into anesthetic practice based on a single small case series that lacked essential information. No randomized controlled trials have since documented any benefit of CP. In addition, numerous surveys have shown that most anesthetists lack adequate theoretical and practical knowledge regarding ...
Cassano Nicoletta - - 2009
Delayed pressure urticaria (DPU) is a physical urticaria characterized by the development of deep swellings at sites of pressure application on the skin. Etiopathogenesis of DPU is still unknown, although the available evidence suggests the involvement of mast cells through non-immunologic mechanisms and the role of several mediators beyond histamine, ...
Inokuchi Nobuhiro - - 2009
Head rotation is widely used as one of the postural techniques for dysphagic patients. However, it cannot be used for patients with severe limitations to the range of motion of the neck. The purpose of this study was to determine the effect of applying pressure to the cricoid while swallowing ...
Milgrom Lionel R - - 2009
Though homeopathy has been in successful and continuous use for well over 200 years, in the United Kingdom it is under growing pressure, from scientific detractors and sections of the media. As such, homeopathy's free National Health Service provision is threatened because it is derided as 'unproven', 'unscientific', and even ...
Carlson Joe - - 2009
With financial pressures building in the wake of the recession and federal efforts to shrink payments, a new wave of CEOs are headed for retirement. It's a trend that could be bad for healthcare, which is at a crossroads regarding reform. "This is not a time to have disruptional leadership," ...
Lee Meng-Rui - - 2009
One 57-year-old lady with uncontrolled hypertension and right-side pupil-sparing oculomotor palsy visited our emergency department. Computed tomographic angiography revealed right-side persistent primitive trigeminal artery. Her symptoms dramatically improved after her blood pressure went under control. To our knowledge, this is the first case report that describes the relation between blood ...
Parry Andrew - - 2009
AIMS AND OBJECTIVES: This literature review explores the role of force and education in cricoid pressure, an essential aspect of practice for any nurse within a critical care environment. BACKGROUND: Cricoid pressure is utilized in everyday practice during rapid sequence induction (RSI) of anaesthesia. The purpose of cricoid pressure is ...
Beavers Ross A - - 2009
The application of cricoid pressure may reduce the incidence of pulmonary aspiration of gastric contents in at-risk patients. Cricoid pressure may be applied during intubation in a variety of settings including the operating room, postanesthesia care unit, intensive care unit, and emergency department. Significant deficits in cognitive knowledge and practical ...
Fenton P M - - 2009
BACKGROUND: Cricoid pressure is a routine part of rapid-sequence induction of general anaesthesia in obstetrics, but its efficacy in saving life is difficult to ascertain. METHODS: As part of a prospective observational study of caesarean sections performed between January 1998 and June 2000 in 27 hospitals in Malawi, the anaesthetist ...
Lubell Jennifer - - 2009
While the latest numbers say the growth in healthcare spending is slowing, industry executives don't see much reason to celebrate. "Rising healthcare costs put pressure on states in the form of increased Medicaid costs, it puts pressure on the federal budget ... and it puts pressure on taxpayers ... while ...
Carrère Loren - - 2009
The ability of altimetry to detect extreme low pressure events and the relationship between sea level pressure and sea level anomalies during extra-tropical depressions have been investigated. Specific altimeter treatments have been developed for tropical cyclones and applied to obtain a relevant along-track sea surface height (SSH) signal: the case ...
Salem M Ramez - - 2008
BACKGROUND: The authors examined the influence of metoclopramide on cricoid pressure-induced relaxation of the lower esophageal sphincter (LES) in awake human volunteers. METHODS: With local institutional review board approval, measurements of LES and intragastric pressures were made in 10 consenting volunteers before cricoid pressure application, during 15 s of cricoid ...
Leonardi Rosalia - - 2008
Pressure alopecia is a form of nonscarring hair loss that occurs because of chronic pressure. This article reports the appearance of an unusual area of pressure alopecia in a patient who wore headgear. Early diagnosis of this rare pathology is fundamental to obtaining total regression of the disease; although pressure ...
Nishi Y - - 2008
The present study aimed to examine the effect of custom tray designs on the displacement of mobile tooth and local impression pressures during the impression procedure, using partially edentulous simulation models with six anterior teeth containing a mobile tooth prepared in previous studies. The custom trays were designed by altering ...
Bayrak Ay┼če Oytun - - 2009
Hereditary neuropathy with liability to pressure palsy (HNPP) is an autosomal dominant disorder characterized by recurrent mono-neuropathies secondary to minor trauma or compression. Whilst typical episodes of palsy generally become apparent during the second and the third decades, HNPP is rarely diagnosed in the first decade. We present the case ...
Fock Andrew - - 2008
It is increasingly common for recreational scuba divers to use breathing mixtures enriched with additional oxygen ('nitrox' or 'enriched air nitrogen') and for technical divers to be exposed to elevated partial pressures of oxygen for prolonged periods of time. The National Oceanic and Atmospheric Administration oxygen exposure limits have traditionally ...
Nishi Y - - 2008
The present study aimed to examine the effect of custom tray designs on the displacement of mobile tooth and local impression pressures during the impression procedure, using partially edentulous simulation models with six anterior teeth containing a mobile tooth prepared in previous studies. The custom trays were designed by altering ...
Farooq Muhammad U - - 2008
ABSTRACT: BACKGROUND: Hereditary neuropathy with liability to pressure palsies (HNPP) is an autosomal-dominant painless peripheral neuropathy characterized by episodes of repeated focal pressure neuropathies at sites of entrapment/compression, with a considerable variability in the clinical course. Electrodiagnostic and genetic testing are important in the diagnostic evaluation of these patients. CASE ...
Ewart Luke - - 2007
Aspiration pneumonitis (AP) is a recognised complication of general anaesthesia (GA) that has an associated morbidity and mortality. Sellick's manoeuvre--the application of a sustained pressure to the cricoid cartilage--is one commonly taught anaesthetic practice that is deemed to reduce this risk of aspiration. However, this practice is not without its ...
Neilipovitz David T - - 2007
PURPOSE: The purpose of this structured, evidence-based, clinical update was to determine if rapid sequence induction is a safe or effective technique to decrease the risk of aspiration or other complications of airway management. SOURCE: In June 2006 a structured search of MEDLINE from 1966 to present using OVID software ...
Macintyre Lisa - - 2007
We sought to establish the impact of pressure garment design variables, moisturizer use, and laundry method on the ability of pressure garments to maintain their pressure delivering potential, indicated here by garment tension, over time and use. Twenty-six sets of three replicate pressure garment sleeves were constructed from four powernet ...
Ellis Daniel Y - - 2007
Cricoid pressure is considered an integral part of patient safety in rapid sequence tracheal intubation and emergency airway management. Cricoid pressure is applied to prevent the regurgitation of gastric contents into the pharynx and subsequent aspiration into the pulmonary tree. This review analyzes the published evidence supporting cricoid pressure, along ...
Asai T - - 2007
BACKGROUND: The laryngeal tube has a potential role in patients with a difficult airway, but cricoid pressure is required if the patient is at risk of aspiration. The effect of cricoid pressure on insertion of these devices is unknown. METHODS: In a randomized cross-over study, the laryngeal tube (25 patients) ...
Quigley Paul - - 2007
OBJECTIVES: (i) To evaluate the theoretical knowledge and practical skills of ED staff regarding the technique of cricoid pressure; (ii) to assess the efficacy of two methods of cricoid pressure training. METHODS: Theoretical knowledge of participants was assessed by a pretraining questionnaire, and practical ability was assessed using a Flinders ...
McNelis U - - 2007
Tracheal tube impingement is common during gum elastic bougie facilitated intubation and a 90 degrees anti-clockwise rotation of the tube usually relieves it. We detail a case where this manoeuvre failed in the presence of cricoid pressure. We investigated the effect of cricoid pressure on gum elastic bougie facilitated intubation ...
Li Cheng W - - 2007
BACKGROUND: We designed this prospective self-controlled study to assess whether cricoid pressure hampers placement of and ventilation through the ProSeal laryngeal mask airway (ProSeal LMA) in anesthetized, paralyzed adult patients. METHODS: After induction of anesthesia, the ProSeal LMA was inserted using the introducer tool with cricoid pressure advanced as far ...
Kulthanan Kanokvalai - - 2007
Delayed pressure urticaria (DPU) is characterized by swellings that develop at sites of sustained pressure on the skin several hours after the pressure is removed and can persist for days. DPU is generally difficult to treat successfully. Antihistamines are usually not effective. We present the case of a patient with ...
Stanton John - - 2006
This article, written by a third year diploma student in operating department practice, examines the literature relating to the safe use of cricoid pressure. To ensure that the patient is adequately protected from acid aspiration syndrome, the anaesthetic practitioner should be aware of the dangers of faulty technique when utilising ...
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