Search Results
Results 451 - 500 of 2630
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Takahashi Yoko - - 2012
Background/Aim: Previous studies have reported small intestinal lesions in patients with portal hypertensive disease. However, the etiology of these lesions is not clear, as portal venous pressure was not measured in any of these studies. The aim of this study is to clarify the association between small intestinal lesions and ...
Mistraletti G - - 2012
BACKGROUND: Performances of two non-invasive CPAP systems (Ventumask high and low flow) were compared with Boussignac® in three different scenarios. METHODS: Scenario 1, pneumatic lung simulator with a tachypnea pattern (800mL × 40/min). Scenario 2, ten healthy subjects studied during tidal breaths and tachypnea. Scenario 3, twenty ICU patients enrolled ...
Cui Jian - - 2012
We have recently shown that a saline infusion in the veins of an arterially occluded human forearm evokes a systemic response with increases in muscle sympathetic nerve activity (MSNA) and blood pressure. In this report, we examined whether this response was a reflex that was due to venous distension. Blood ...
Carter Jason R - - 2012
The antihypertensive influence of fish oil is controversial, and the mechanisms remain unclear. Because the inverse relation between fish oil and hypertension appears to be partially dependent on the degree of hypertension, we tested the hypothesis that fish oil would elicit more dramatic reductions in mean arterial pressure (MAP) and ...
Zhang Ye Y Department of Physical Medicine and Rehabilitation, Graduate School of Biomedical Engineering, Tohoku University, Sendai, Miyagi, Japan. - - 2013
Vessel damage after clamping may affect the success of surgical operations. A new pressure controlled clamp (SMA clamp) was designed using super elastic property of shape memory alloy (SMA) to realize atraumatic vessel occlusion. The ability and biological effect of the SMA clamp to control pressure was investigated in vivo. ...
Stergiou George S - - 2012
BackgroundA unique advantage of ambulatory blood pressure (ABP) monitoring is the assessment of nocturnal blood pressure (BP) and the detection of non-dippers. This study assessed nocturnal BP and non-dippers using a novel home BP (HBP) monitor.MethodsEighty-one hypertensives performed within 2 weeks ABP (24-h, Microlife WatchBP O3) and HBP monitoring (Microlife ...
Maeda Kengo - - 2012
A 53-year-old woman presented with severe vomiting 3.5 hours after eating a boiled wild herb thought to be Hosta montana. She was alert, and did not complain of diplopia or numbness of her limbs. Her vital signs were temperature of 35.9°C, blood pressure of 84/33 mmHg, and heart rate of ...
Greve Anders M - - 2012
BackgroundPharmaceutical differences in central hemodynamics might influence cardiac response to antihypertensive treatment despite similar lowering of brachial blood pressure (BP).MethodsData from all patients with at least two echocardiographic examinations in the Losartan Intervention For Endpoint Reduction in Hypertension (LIFE) echocardiographic substudy (n = 801); high-risk patients on losartan- vs. atenolol-based ...
Hansel Jochen - - 2012
ABSTARCT: BACKGROUND: Environmental stresses, such as immersion, cold, and venous gas microbubbles, have been shown to contribute to an increase in pulmonary artery pressure (PAP) after single SCUBA dives. This study was carried out to investigate PAP changes following a dry chamber dive. METHODS: 17 male divers [mean age 32 years, ...
Behara Srinivas Ravindra Babu - - 2012
The purpose of this study was to assess the effectiveness of three commercial capsule-based dry powder passive inhalers [Rotahaler® (RH), Monodose Inhaler® (MI) and Handihaler® (HH)] in de-agglomerating salbutamol sulphate (SS) and micronized lactose (LH300) powders and their sensitivity to air flow rate changes and air flow resistance. Aerosolisation was ...
Farvid M S - - 2012
The objective of this strudy was to investigate the potential associations between oxygen radical absorbance capacity (ORAC) of fruits, vegetables, legumes and nuts, and blood pressure in type 2 diabetic patients in Tehran. In a cross-sectional study of 506 type 2 diabetic patients, aged 28-75 years, usual dietary intakes were ...
Hong Dezhi - - 2012
OBJECTIVES: To evaluate the effect of physician presence on blood pressure (BP) and the influencing factors. METHODS: This study included 600 adult outpatients, of whom 335 had hypertension and 265 did not have hypertension. An automated BP measurement device was used for all measurements of BP. After a 10-min rest, ...
Stefanakis Manos - - 2012
ABSTRACT: Study Design. Mechanical and biochemical analyses of cadaveric and surgically-removed discs.Objective. To test the hypothesis that fissures in the annulus of degenerated human discs are mechanically and chemically conducive to the ingrowth of nerves and blood vessels.Summary of Background Data. Discogenic back pain is closely associated with fissures in ...
Losi Paola - - 2012
Negative-pressure wound therapy (NPWT) also known as V.A.C. (Vacuum-assisted closure), is widely used to manage various type of wounds and accelerate healing. NPWT has so far been delivered mainly via open-cell polyurethane (PU) foam or medical gauze. In this study an experimental setup of sheep wound model was used to evaluate, ...
Welz Oliver - - 2012
Rate coefficients for the reaction 3NCN + NO -> products (R3) were measured in the temperature range 251 - 487 K at pressures from 10 mbar up to 50 bar with helium as the bath gas. The experiments were carried out in slow-flow reactors by using pulsed excimer laser photolysis ...
Jacobs Jeremy M - - 2012
OBJECTIVE: Hypertension is among the most common chronic complaints of older people. Among very old people with common co morbidities, it remains uncertain whether the benefits of long-term treatment seen among younger people, are also observed. Our objective was to assess the relationship of blood pressure (BP) at age 85 ...
O'Dea John - - 2012
OBJECTIVES The recent introduction of transcatheter aortic heart valves into clinical practice has driven the need to develop methodologies to size such valves without access to the annulus in the manner hitherto possible with open heart surgery. To date, sizing has largely been done according to manufacturer-supplied guidelines based on ...
Gennisson Jean-Luc - - 2012
The in vivo influence of renal anisotropy and of urinary and vascular pressure on elasticity values using ultrasonic supersonic shear wave elastography was studied in pigs. Experiments were conducted in agreement with the European Commission guidelines and directives of the French Research Ministry. Six kidneys in three pigs were studied in vivo. ...
Desai Chirag S - - 2012
BACKGROUND: In type 1 diabetics undergoing allogenic islet transplants, transaminitis and portal vein thrombosis (PVT) after transhepatic portal infusion of islets may be related to infusion pressure and the purity of islets. Complications of intraoperative portal infusion of islets in patients with chronic pancreatitis undergoing a total pancreatectomy (TP) and ...
Ueno Mai - - 2012
Abstract We investigated the effects of sodium alginate oligosaccharides (alginate) on the development of spontaneous hypertension in rats. Spontaneous hypertensive rats were treated with alginate for 7 weeks. Systolic blood pressure (SBP) and cardiovascular and kidney damage were assessed. Systolic blood pressure increased in SHRs and this elevation was attenuated ...
Ito Toshiaki - - 2012
A 71-year-old woman underwent aortic valve replacement with 23 mm Medtronic Mosaic Ultra valve 4 years ago because of aortic stenosis. Although she had been asymptomatic since the operation, echocardiography showed 4 m/s of transprosthetic valve flow that implied early prosthetic valve failure. Catheter examination revealed that the mean transvalvular pressure gradient during ...
Lee Byung-Kook - - 2012
INTRODUCTION: We present data from the Korean National Health and Nutrition Examination Survey 2008-2010 regarding the association between blood cadmium levels and blood pressure in a representative sample of the adult South Korean population. METHODS: We restricted the analysis to participants ≥20 years of age who completed the health examination ...
Thomson Richard I - - 2012
The structure of the canted antiferromagnet β-p-NCC(6) F(4) CNSSN (1) was determined from synchrotron powder-diffraction studies in the pressure range 0-21.6 kbar. Radical 1 crystallizes in the orthorhombic space group Fdd2, but undergoes an asymmetric contraction of the unit-cell size with increasing pressure. At the molecular level, this contraction of the ...
Jarosz Bozena - - 2012
Intra-abdominal hypertension (IAH) may increase brain venous pressure, which may lead to brain injury. The aim of the present study was to analyse the effect of IAH on brain venous pressure and brain total and ionised magnesium (tMg and iMg), calcium (Ca) and zinc (Zn) contents in rats. Forty four ...
Lee Vivian Wy - - 2012
Aim:  To investigate the impact of the Pharmacy Outreach Service (POS) on blood pressure (BP) and disease knowledge among community-dwelling elderly patients with hypertension, and to evaluate the sustainability of such impact of POS. Methods:  A prospective open-labeled study of elderly adults (aged ≥65 years) with hypertension (BP ≥140/90 mmHg for non-diabetics ...
Sudano Isabella - - 2012
The consumption of a high amount of fruits and vegetables was found to be associated with a lower risk of coronary heart disease and stroke. Epidemiologically, a similar relationship has been found with cocoa, a naturally polyphenol-rich food. Obviously, double blind randomized studies are difficult to perform with cocoa and ...
Chan Eunice K - - 2012
BACKGROUND: Higher adult blood pressure, even without hypertension, predicts cardiovascular outcomes, and is predicted by childhood blood pressure. Regular dark chocolate intake lowers blood pressure in adults, but effects in children are unknown. AIM: To examine the feasibility of school-based provision of dark chocolate and its short-term efficacy in reducing ...
Lundgren J - - 2012
AIM: Stimulation of soluble guanylate cyclase (sGC) with BAY 41-8543 was hypothesized to attenuate acute hypoxic pulmonary vasoconstriction alone and combined with dual endothelin (ET)-receptor antagonist tezosentan. METHODS: Measurements were taken in 18 anaesthetized pigs with a mean ± SEM weight of 31.1 ± 0.4 kg, in normoxia (FiO(2) ~0.21) and hypoxia (FiO(2) ~0.10) without ...
Miyauchi Katsumi - - 2012
Background: Angiotensin II receptor blocker (ARB) as a first-line drug for hypertension in diabetes often fails to control blood pressure adequately. The objective of the study was to evaluate the effect of amlodipine combined therapy on home blood pressure (HBP) useful for management of hypertension. Methods and Results: A total of 263 ...
Pal Gopal Krushna - - 2012
INTRODUCTION:: Although the prevalence of prehypertension is high, the pathophysiological mechanisms and the effects of gender in its causation have not yet been fully understood. METHODS:: Body mass index, waist-to-hip ratio, basal heart rate, blood pressure, rate pressure product and spectral indices of heart rate variability were reordered and analyzed ...
Goff David C DC - - 2012
BACKGROUND: Previous reports have described favorable changes in the relationship between systolic blood pressure and age in recent birth cohorts. The obesity epidemic might threaten that pattern. OBJECTIVES: To update analyses of differences between birth cohorts in the relationship between systolic blood pressure and age and to determine whether increases ...
Aoka Yoshikazu - - 2012
Noninvasive measurement of hemodynamic parameter was undertaken in 240 patients with untreated primary hypertension using impedance cardiography (ICG) in outpatient clinics. High output was defined as a cardiac index (CI) >3.6 L/minute/m(2) and high resistance was defined as the total peripheral resistance index (TPRI) >2700 dyne·s·m(2)/cm(5). Of all patients, 67% ...
Jiwani A Z - - 2012
To examine the effects of caffeinated coffee consumption on intraocular pressure (IOP), ocular perfusion pressure (OPP), and ocular pulse amplitude (OPA) in those with or at risk for primary open-angle glaucoma (POAG). We conducted a prospective, double-masked, crossover, randomized controlled trial with 106 subjects: 22 with high tension POAG, 18 ...
Erdem Alim - - 2012
Non-dipping blood pressure pattern was shown to be associated with increased cardiovascular events. In addition, cardiac autonomic dysfunction was found to be associated with non-dipper phenomenon. In this study, we aimed to evaluate the cardiac autonomic functions in dipper and non-dipper pre-hypertensive subjects. A total of 65 pre-hypertensive subjects were ...
Tarnoki Adam Domonkos - - 2012
OBJECTIVE:: Central blood pressure and aortic stiffness have been consistently reported as strong cardiovascular risk factors. Twin studies by comparing identical with nonidentical twins produce information on the relative contribution of genes and environment. METHODS:: One hundred and fifty-four monozygotic (MZ) and 42 dizygotic (DZ) twin pairs (age 43 ± 17 years) ...
Oliveira-Filho Alfredo Dias - - 2012
BACKGROUND: Non-adherence to treatment is an important and often unrecognized risk factor that contributes to reduced control of blood pressure (BP). OBJECTIVE: To determine the association between treatment adherence measured by a validated version in Portuguese of the 8-item Morisky Medication Adherence Scale (MMAS-8) and BP control in hypertensive outpatients. ...
Protogerou Athanase D - - 2012
BackgroundAccumulating evidence suggests the potential superiority of office aortic blood pressure (BP) over brachial in the management of arterial hypertension. The noninvasive aortic 24-h ambulatory brachial BP monitoring (ABPM) is potentially the optimal method for assessing BP profile. The objective of the present study was to investigate the feasibility and ...
Black Henry R - - 2012
J Clin Hypertens (Greenwich). 2012;00:00-00. ©2012 Wiley Periodicals, Inc. In a prespecified subgroup analysis of a 12-week multinational, randomized, double-blind, parallel-group trial, self-identified Hispanic/Latino adult men and women with systolic blood pressure 160 mm Hg to 179 mm Hg received combination aliskiren/hydrochlorothiazide (HCT) 150/12.5 mg or aliskiren 150 mg (force-titrated to 300/25 mg and 300 mg, respectively, at ...
Anesäter Erik - - 2012
There are increasing reports of deaths and serious complications associated with the use of negative pressure wound therapy (NPWT). Bleeding may occur in patients when NPWT is applied to a wound with exposed blood vessels or vascular grafts, possibly due to mechanical deformation and hypoperfusion of the vessel walls. Recent ...
Cremer Antoine - - 2012
BACKGROUND:: The measurement of central blood pressure (BPc) has become a matter of importance. Several therapeutic trials have noted a different protective effect against cardiovascular complications with different antihypertensive strategies, but an identical decrease in brachial BP (BPb). A possible explanation lies in the different effects of the treatments on ...
Tanaka Kenichi - - 2012
BackgroundAt 1446 on 11 March 2011, northeastern Japan was struck by a major earthquake measuring 9.0 on the Richter scale. There have been several reports of transient blood pressure increases after a major earthquake, but the impact of a major earthquake on blood pressure in chronic kidney disease (CKD) patients ...
Palatini Paolo - - 2012
BackgroundGlomerular hyperfiltration predicts development of nephropathy in hypertension but the factors responsible for increased glomerular filtration rate (GFR) are not well known. Aim of this study was to examine which clinical variables influence GFR in the early stage of hypertension.MethodsParticipants were 1,106 young-to-middle-age hypertensive adults with creatinine clearance >60 ml/min/1.73 ...
Palombo Carlo - - 2012
OBJECTIVES:: A direct measurement of carotid stiffness implies an accurate assessment of changes in carotid diameter and pressure during cardiac cycle. Radiofrequency-based wall-tracking systems (WTS) are capable to track arterial wall movement with adequate spatial and temporal resolution, and to provide carotid pressure estimate from calibrated distension waveforms. The aim ...
Agyemang Charles - - 2012
Background: Migration from sub-Saharan Africa to industrialized countries has increased tremendously over the last few decades, yet very little is known about the health status of sub-Saharan African populations living in industrialized communities. The aim of this study was to assess prevalence, levels of awareness, treatment, and control of hypertension ...
Bastos-Barbosa Rachel G - - 2012
BACKGROUND: Non-adherence to treatment has been identified as the main cause of uncontrolled blood pressure (BP), and may represent a greater risk in older individuals. OBJECTIVE: The aim of this study was to evaluate and compare the rate of adherence to hypertension treatment using different methods, to estimate the BP ...
Anjan Venkatesh Y - - 2012
B-type natriuretic peptide (BNP) is used widely to exclude heart failure (HF) in patients with dyspnea. However, most studies of BNP have focused on diagnosing HF with reduced ejection fraction (EF). The aim of this study was to test the hypothesis that a normal BNP level (≤100 pg/ml) is relatively ...
Wellman Tyler J - - 2012
Heterogeneous, small-airway diameters and alveolar derecruitment in poorly aerated regions of normal lungs could produce ventilation heterogeneity at those anatomic levels. We modeled the washout kinetics of (13)NN with positron emission tomography to examine how specific ventilation (sV) heterogeneity at different length scales is influenced by lung aeration. Three groups ...
Kara Necip - - 2012
PURPOSE:: To compare the biomechanical properties of the cornea between topographically normal relatives of patients with keratoconus and age-matched controls. METHODS:: Thirty healthy individuals (control group) and 30 topographically normal relatives of patients with keratoconus (study group) were enrolled in this prospective, cross-sectional comparative study. Topographical measurements including pachymetric values, ...
Honzikova N - - 2012
In this study we tested whether joint evaluation of the frequency (f(cs)) at which maxima of power in the cross-spectra between the variability in systolic blood pressure and inter-beat intervals in the range of 0.06-0.12 Hz occur together with the quantification of baroreflex sensitivity (BRS) may improve early detection of ...
Karan Suzanne B - - 2012
Techniques to quantify the effects of sedation on upper airway collapsibility have been used as research tools in the laboratory and operating room. However, they have not been used previously in the usual clinical practice environment of colonoscopy sedation. The propensity for upper airway collapsibility, quantified as the critical pharyngeal ...
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