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Results 301 - 350 of 2608
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Paal Peter - - 2012
Background and aim: The majority of avalanche victims who sustain complete burial die within 35min due to asphyxia and injuries. After 35min, survival is possible only in the presence of a patent airway, and an accompanying air pocket around the face may improve survival. At this stage hypothermia is assumed ...
Miranpuri Amrendra S - - 2012
BACKGROUND: Although, the relationship of spontaneous subarachnoid hemorrhage (SAH) to climatic or circadian factors has been widely studied, epidemiologic, circardian and climatic factors in non-aneurysmal SAH (naSAH), particularly perimesencephalic SAH (PMH), has not been reported before. OBJECTIVE: For the first time, demographic, climatic, and circadian variables are examined together as ...
Rooban Nirooshan - - 2012
OBJECTIVES: Intra-abdominal pressure (IAP) is most commonly measured via the bladder with the patient in the supine position. In the ICU, patients are nursed with the head of the bed elevated at 30° (HOB30) to reduce the risk of ventilator-associated pneumonia. This study investigated whether gastric pressure at HOB30 can ...
Al-Dorzi Hasan M - - 2012
BACKGROUND: The importance of intra-abdominal pressure (IAP) and abdominal perfusion pressure (APP) in cirrhotic patients with septic shock is not well studied. We evaluated the relationship between IAP and APP and outcomes of cirrhotic septic patients, and assessed the ability of these measures compared to other common resuscitative endpoints to ...
Niiranen Teemu J - - 2012
The objective of this study is to construct an International Database of HOme blood pressure in relation to Cardiovascular Outcome (IDHOCO). The main goal of this database is to determine outcome-based diagnostic thresholds for the self-measured home blood pressure (BP). Secondary objectives include investigating the predictive value of white-coat and ...
Hirota Shinichi - - 2012
Dietary salt restriction is recommended for the prevention of cardiovascular disease in patients with hypertension and heart failure as well as in the general population. However, salt reduction is very difficult without knowing the daily salt intake of individual patients. A total of 524 subjects (72±10 year old, 246 female) ...
Soler Morejón Caridad De Dios Cde - - 2012
Although the World Society for Abdominal Compartment Syndrome in its guidelines recommends midaxillary line (MAL) as zero reference level in intra-abdominal pressure (IAP) measurements in aiming at standardizing the technique, evidence supporting this suggestion is scarce. The aim of this study is to study if the zero reference position influences ...
Cresswell Adrian B - - 2012
Current assumptions rely on intra-abdominal pressure (IAP) being uniform across the abdominal cavity. The abdominal contents are, however, a heterogeneous mix of solid, liquid and gas, and pressure transmission may not be uniform. The current study examines the upper and lower IAP following liver transplantation. IAP was measured directly via ...
Kaussen Torsten - - 2012
The purpose of the present study was to quantify bacterial translocation to mesenteric lymph nodes due to different levels of intra-abdominal hypertension (IAH; 15 vs. 30 mmHg) lasting for 24 h in a porcine model. We examined 18 anesthetized and intubated pigs (52.3 ± 4.7 kg) which were randomly allocated ...
Teramoto Tamio - - 2012
We investigated the relationship between cardiovascular disease (CVD) and the achieved blood pressure, dietary habits and the presence/absence of metabolic syndrome (MetS) in hypertensive patients treated with olmesartan medoxomil. A prospective cohort study with a 3-year follow-up was conducted in 14 721 olmesartan-naive outpatients (mean age: 64.9 years, 49.6% women) with ...
Sveegaard Steffen Gralert - - 2012
A drainage/filtration apparatus was developed for automatically determining sedimentation velocity and dewatering rate. Pressure-step testing was used to study filter cake compressibility, resistance, and swelling. Activated sludge was analysed, and the data indicate that the sludge is highly compressible even at low pressures (10 kPa). Furthermore, compressed sludge cakes swell if ...
Cleary Daniel R - - 2012
Accurate monitoring of respiration is often needed for neurophysiological studies, as either a dependent experimental variable or an indicator of physiological state. Current options for respiratory monitoring of animals held in a stereotaxic frame include EMG recordings, pneumotachograph measurements, inductance-plethysmography, whole-body plethysmography (WBP), and visual monitoring. While powerful, many of ...
Torffvit Ole - - 2012
What is the prognostic significance of achieving a systolic blood pressure of <140 mmHg? Diabetic renal policlinic, university hospital of Lund, Sweden. 118 type 2 diabetic patients with micro-macroalbuminuria were followed for four years (range 1-8 years). METHOD AND MAIN OUTCOME MEASURES: The prognostic significance of office, day- and nighttime ...
Rodriguez L - - 2012
Describe the association of internal anal sphincter (IAS) relaxation with colonic high- amplitude peristaltic contractions (HAPCs). Retrospective review of colon manometry tracings of children with constipation to determine the IAS relaxation characteristics associated with HAPC's (HAPC-IASR) events and compare them to the those seen during the performance of the anorectal ...
Sakamoto R R Department of Health Promotion and Education, School of Public Health, Loma Linda University, 24951 North Circle Drive, Loma Linda, CA 92350, - - 2013
Accumulating epidemiological and clinical studies have suggested that vitamin D insufficiency may be associated with hypertension. Blacks tend to have lower vitamin D levels than Whites, but it is unclear whether this difference explains the higher blood pressure (BP) observed in Blacks in a population with healthy lifestyle practices. We ...
Leeman Jonathan E - - 2012
Ultrasound (US) mediated microbubble (MB) destruction facilitates thrombolysis of the epicardial coronary artery in acute myocardial infarction (AMI) but its effect on microvascular thromboemboli remains largely unexplored. We sought to define the acoustic requirements for effective microvascular sonothrombolysis. To model microembolization, microthrombi were injected and entrapped in a 40 μm ...
Vikholm Per - - 2012
OBJECTIVES: Right heart failure is a major cause of morbidity and mortality after left ventricular assist device implantation and is still hard to predict. This study investigated the haemodynamic effect of a modified Glenn shunt on induced right ventricular (RV) failure. METHODS: Isolated RV failure was induced by coronary ligation ...
Kusunose Kenya - - 2012
BACKGROUND: Accurate assessment of left ventricular (LV) function in patients with atrial fibrillation (AF) remains difficult, mainly because of the beat-to-beat variability of many echocardiographic parameters. The aim of this study was to assess the hypothesis that LV function can be estimated from an index-beat echocardiographic assessment in patients with ...
Agnoletti Davide - - 2012
Obtaining pulse pressure non-invasively from applanation tonometry requires the calibration of pressure waveform with brachial systolic and diastolic blood pressure. In the literature, several calibration methodologies are applied, and clinical studies disagree about the predictive value of central hemodynamic parameters. Our aim was to compare 4 calibration methodologies and assess ...
Ogura Chika - - 2012
Sympathetic nerve activity is augmented by calcium-channel blocker treatment as a result of decreased blood pressure. Dihydropyridine calcium-channel blockers are divided into three different types. The purpose of the present study was to investigate whether treatment effects on hemodynamics, cardiac autonomic nerve activity and plasma norepinephrine levels differ among amlodipine ...
Leunissen R W J - - 2012
Aims: To investigate the effect of birth size and weight gain during childhood on blood pressure and carotid intima-media thickness (cIMT) in young adulthood. Methods: The relationship of birth size with systolic blood pressure (SBP), diastolic blood pressure (DBP), and cIMT was investigated in 243 adults, aged 18-24 years. SBP, ...
Borel Jean-Christian - - 2012
Oronasal mask (ONM) can be used when mouth leaks impair nasal-CPAP effectiveness. However, ONM's constraint on the chin and straps' traction may alter upper airway (UA) mechanical properties. In contrast, mandibular advancement device associated with nasal-CPAP (NM+MAD) may reduce UA resistance. The aim of this exploratory study was to compare ...
Morillas Pedro - - 2012
Aim. The resistive index (RI) is a hemodynamic parameter that reflects local wall extensibility and related vascular resistance. We analyze the relationship between common carotid RI and target organ damage in treated hypertensive patients. Methods. We analyzed 265 consecutive hypertensive patients. Risk factors, cardiovascular history and treatments were collected; blood ...
Seeck A - - 2012
Today atrial fibrillation (AF) is the most common cardiac arrhythmia in clinical practice accounting for approximately one third of hospitalizations and accompanied with a 5 fold increased risk for ischemic stroke and a 1.5 fold increased mortality risk. The role of the cardiac regulation system in AF recurrence after electrical ...
Larstorp Anne Cecilie K - - 2012
Previous studies have found pulse pressure (PP), a marker of arterial stiffness, to be an independent predictor of atrial fibrillation (AF) in general and hypertensive populations. We examined whether PP predicted new-onset AF in comparison with other blood pressure components in the Losartan Intervention For Endpoint reduction in hypertension study, ...
Li J Q - - 2012
The intervention of pressure therapy on management of hypertrophic scar (HS) after burn is based on the theoretical assumption that the mechanical force added onto the scar tissue will reduce the growth of myofibroblasts which create the collagen clusters and the interstitial space, and to realign fibrous tissues, thus reducing ...
Ng Keith - - 2012
OBJECTIVE:: The effect of brief, prehypertensive therapy by angiotensin-converting enzyme inhibition (ACEi) with perindopril on the structure and function of large arteries was studied in rats. METHODS:: Spontaneously hypertensive rats (SHR) received perindopril (3 mg/kg per day) between the ages of either 6 and 10 weeks (early) or 20 and 24 ...
Mizuno Reiko - - 2012
Recently, coronary microvascular function was documented to be impaired even in patients with prehypertension. However, the impact of antihypertensive level on improvement of coronary microvascular dysfunction in hypertensive patients remains to be established. We investigated the optimal blood pressure achieved with treatment of antihypertensive agents for improvement of coronary microvascular ...
Schillaci Giuseppe - - 2012
Short-term blood pressure (BP) variability predicts cardiovascular complications in hypertension, but its association with large-artery stiffness is poorly understood and confounded by methodologic issues related to the assessment of BP variations over 24 hours. Carotid-femoral pulse wave velocity (cfPWV) and 24-hour ambulatory BP were measured in 911 untreated, nondiabetic patients ...
Matori Humann - - 2012
Pretreatment with a phytoestrogen genistein has been shown to attenuate the development of pulmonary hypertension (PH). Because PH is not always diagnosed early, we examined whether genistein could also reverse preexisting established PH and prevent associated right heart failure (RHF). PH was induced in male rats by 60 mg/kg of ...
Russo Cesare - - 2012
Increased arterial stiffness and wave reflection have been reported in heart failure with normal ejection fraction (HFNEF) and in asymptomatic left ventricular (LV) diastolic dysfunction, a precursor of HFNEF. It is unclear whether women, who have higher frequency of HFNEF, are more vulnerable than men to the deleterious effects of ...
Inić S - - 2012
The second edition of the Croato-Slavonian Pharmacopoeia was published in Zagreb in 1901. As the original scientific work of two university professors, Gustav Janecek and Julije Domac, the Pharmacopoeia had strong scientific foundations and introduced a number of innovations. For the first time, a pharmacopoeia prescribed optical rotation for the ...
Theilla Miriam - - 2012
Background Pressure ulcers are an important source of morbidity and suffering for patients and a formidable burden on caregivers. Objectives To assess the impact of a feeding formula enriched with fish oil on healing of preexisting pressure ulcers and serum levels of C-reactive protein in critical care patients. Methods Adult ...
Zaratkiewicz Sunniva - - 2012
Hospital-acquired pressure ulcers (HAPU) are a growing concern in patient care. Mucosal pressure ulcers (PUs) on the lips, mouth, gums, and tongue caused by oral intubation and their securement devices can be difficult to identify and prevent. In an effort to address this problem and reduce mucosal PU, implementation of ...
Cui Weicheng - - 2012
The radial and translational oscillations of a single cavitation bubble in a standing ultrasound wave were investigated experimentally at various driving acoustic pressures for aqueous ethanol solutions with different bulk molar fractions of ethanol range of 0-1.3×10(-3). The results show that both the lower and upper stability thresholds of the ...
de Morais Hécio Henrique Araújo - - 2012
An increase in blood pressure during dental treatment has been investigated with regard to potential medical risks since previous studies suggest that dental procedures may cause stress to the patient and, consequently, the cardiovascular system. The aim of the present study was to analyze hemodynamic changes following the administration of ...
Urteaga P - - 2012
It was designed and constructed a new thermogravitational column able to operate at high pressures (up to 50 MPa). This new thermogravitational column is of the cylindrical type with closed ends. It is made of stainless steel. The length of the column is 0.5 m and the gap between its ...
Lee Hyuk - - 2012
High-dose proton pump inhibitor (PPI) treatment leads to relatively little symptomatic improvement in patients with functional chest pain (FCP). This study was to evaluate the use of smooth muscle segmental changes in esophageal contraction as measured by topographical plots of high resolution manometry (HRM) as predictive factors of the response ...
Pevec Simon - - 2012
This article presents a miniature, high-sensitivity, all-silica Fabry-Perot fiber-optic sensor suitable for simultaneous measurements of pressure and temperature. The proposed sensor diameter does not exceed 125 μm and consists of two low-finesse Fabry-Perot resonators created at the tip of an optical fiber. The first resonator is embodied in the form ...
Mokdad S - - 2012
Progress in the knowledge of the water saturation curve is required to improve the accuracy of the calibrations in humidity. In order to achieve this objective, the LNE-CETIAT and the LNE-CNAM have jointly built a facility dedicated to the measurement of the saturation vapor pressure and temperature of pure water. ...
Qi L - - 2012
PaCO2 is an important factor in the regulation of cerebral circulation, and it is often used to reduce intracranial pressure through hyperventilation during neurosurgery. Changes in concentration can cause changes in CBF (cerebral blood flow). 20-HETE is a product of CYP4A-mediated AA (arachidonic acid) metabolism and is a powerful endogenous ...
Jagadeesh A M - - 2012
Accurate measurement and display of arterial blood pressure is essential for rational management of adult cardiac surgical patients. Because of the lower risk of complications, noninvasive monitoring methods gain importance. A newly developed continuous noninvasive arterial blood pressure (CNAP™) monitor is available and has been validated perioperatively. In a prospective ...
Tagler Michael J - - 2012
Choking under pressure occurs when an individual underperforms due to situational pressure. The present study examined whether being the target of a positive social stereotype regarding math ability causes choking among men. Gender identification and self-consciousness were hypothesized to moderate the effect of math-gender stereotypes on men's math test performance. ...
Cheng Shu-Meng - - 2012
Abstract Aims. To assess safety and efficacy of valsartan/amlodipine combination in hypertensive Taiwanese patients. Methods. This 12-week, multi-center, prospective, observational, post-marketing study enrolled 1029 patients to receive valsartan/amlodipine combination alone or as add-on to other antihypertensives. Efficacy was evaluated by blood pressure (BP) control rate (in mmHg; non-diabetics, < 140/90; diabetics, ...
Badi M A H - - 2012
Hypertension and obesity in children are increasing concerns worldwide. A cross-sectional study of hypertension in relation to overweight/obesity was conducted in 2009 among schoolchildren aged 6-16 years in Aden, Yemen. Using multistage stratified random sampling 1885 children were classified into wasted, normal weight, overweight and obese according to body mass ...
Hallock Gary A - - 2012
A lumped parameter resonator capable of generating megapascal pressures at low frequency (kilohertz) is described. Accelerometers are used to determine the applied pressure, and are calibrated with a piezoelectric sample. A laser diagnostic was also developed to measure the pressure in semiconductor samples through the band gap pressure dependence. In ...
Schnellbacher Rodney W - - 2012
Objective-To assess the effects of dopamine and dobutamine on the blood pressure of isoflurane-anesthetized Hispaniolan Amazon parrots (Amazona ventralis). Animals-8 Hispaniolan Amazon parrots. Procedures-A randomized crossover study was conducted. Each bird was anesthetized (anesthesia maintained by administration of 2.5% isoflurane in oxygen) and received 3 doses of each drug during ...
Fischer M O - - 2012
BACKGROUND: /st>This observational study was designed to evaluate the reliability and precision of a new digital photoplethysmographic device (Nexfin, BMEYE B.V., Amsterdam, The Netherlands) for continuous and non-invasive assessment of arterial pressure and cardiac output. METHODS: /st>Fifty consecutive adult subjects were prospectively enrolled at admission to the intensive care unit ...
Brucker Benjamin M - - 2012
To determine the clinical and urodynamic differences in the presentation and the value of simultaneous fluoroscopy in dysfunctional voiding (DV) and primary bladder neck obstruction (PBNO); the 2 most common causes of non-neurogenic "functional" bladder outlet obstruction in women. A review of our urodynamic study database (March 2003 to August ...
Berthold Heiner K - - 2012
Selenium is an antioxidant micronutrient with potential associations with hypertension. Few studies have investigated the association of serum selenium concentrations with blood pressure and hypertension in countries with low dietary selenium intake such as Germany, with inconsistent findings. We undertook a cross-sectional analysis of participants in the Lipid Analytic Cologne ...
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