Search Results
Results 201 - 250 of 1824
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Lehmann Nils - - 2011
OBJECTIVE: Given the multimodal medical and interventional treatment options in coronary artery disease (CAD), the current value of intensified lifestyle modification remains unclear. No randomized studies have so far assessed the impact of lifestyle modification on coronary artery calcium (CAC). We examined the long-term effects of a one-year comprehensive lifestyle ...
Angell Peter - - 2011
PURPOSE:: The purpose of this study was to investigate the effect of Anabolic Steroid (AS) use on cardiac structure and function, and cardiovascular risk factors. METHODS:: We recruited 47 strength trained individuals (male=46, female=1) 28 self-reporting regular AS use and 19 self-reporting never taking AS. Participants underwent assessment of body-composition, ...
Rosenbaum Eva - - 2011
While molecular adaptation to high temperature has been extensively studied, the effect of hydrostatic pressure on protein structure and enzymatic activity is still poorly understood. We have studied the influence of pressure on both the quaternary structure and enzymatic activity of the dodecameric TET3 peptidase from Pyrococcus horikoshii. Small angle ...
Dos Santos Paulo Sérgio P - - 2011
Objective  To evaluate the effects of butorphanol on cardiopulmonary parameters in dogs anesthetized with desflurane and breathing spontaneously. Study design  Prospective, randomized experimental trial. Animals  Twenty dogs weighing 12 ± 3 kg. Methods  Animals were distributed into two groups: a control group (CG) and butorphanol group (BG). Propofol was used for induction and ...
Prabhakaran Prasanth - - 2011
This study was done to evaluate the effects of exposure to hyperoxic hypobaria on the autonomic reactivity and hence G tolerance of high-performance aircraft aircrews. Heart rate variability (HRV) indices and traditional measures of autonomic functions were measured during normobaric baseline, hourly at hyperoxic hypobaria for 5 h, and during ...
Lee M K - - 2011
An urodynamic test which measures various physiologic variables during voiding is generally used for accurate diagnosis of a bladder outlet obstruction (BOO) resulting from benign prostatic hyperplasia (BHP). However, this method is difficult to directly apply to all patients because it is an invasive test and many patients suffer from ...
Akhtar A - - 2011
An 80-year-old man presented to the emergency department having collapsed. On arrival his Glasgow Coma Scale was 9, his airway was patent with oxygen saturations of 100% and a respiratory rate of 30 breaths per minute. His heart rate was 69 beats per minute and irregular, and his blood pressure ...
Muir William W - - 2011
Objective-To determine the hematologic, serum biochemical, rheological, hemodynamic, and renal effects of IV administration of lactated Ringer's solution (LRS) to healthy anesthetized dogs. Design-4-period, 4-treatment cross-over study. Animals-8 healthy mixed-breed dogs. Procedures-Each dog was anesthetized, mechanically ventilated, instrumented, and randomly assigned to receive LRS (0, 10, 20, or 30 mL/kg/h ...
Gaitini Luis A - - 2011
To evaluate the ease of use of two airway devices, the EasyTube (EzT) versus the esophageal-tracheal Combitube (ETC). Prospective, randomized controlled trial. University hospital. 80 adult, ASA physical status 1 and 2 patients scheduled for elective surgery. Patients' tracheas were intubated with the EzT or the ETC in randomized fashion. ...
Mikalacki Milena - - 2011
The aim of the study was to analyze the effects produced by the use of experimental program (Nordic polewalking) on functional abilities in elderly women. Three-month polewalking led to reduction in the pulse rate at rest, diastolic and systolic blood pressure at the level of significance of 0.01 (p = ...
Sharma G V R K - - 2011
In patients admitted for heart failure (HF), unrecognized elevation of left ventricular end-diastolic pressure (LVEDP) at the time of discharge may have a role in the high rehospitalization rate for HF on follow-up. In a small, prospective study (n = 50), patients admitted for HF were randomized to management guided ...
Fan Shan - - 2011
To evaluate the differences in aqueous humor dynamics between nighttime and daytime in participants with ocular hypertension. Thirty participants (mean [SD] age, 59.2 [11.1] years) with ocular hypertension were enrolled in the study, which included 1 daytime and 1 nighttime visit. During each visit, measurements included central cornea thickness by ultrasound ...
Carchietti Elio - - 2011
Helicopter emergency medical service (HEMS) crew are subject to various sources of environmental, physical, and psychological stress. We measured the changes in heart rate and blood pressure as indicators of stress among the crewmembers of the regional HEMS of the Region Friuli Venezia Giulia, Italy. From August 12 to September ...
Sigle Kelly J - - 2011
To determine the extent of fluctuation in circadian intraocular pressure (IOP) and the efficacy of topical dorzolamide 2% q 8 h in lowering IOP and blunting circadian fluctuation in IOP in glaucomatous cats. Seven adult cats with primary congenital glaucoma (PCG). Measurements of IOP and pupil diameter were obtained for ...
Feiner John R - - 2011
Anemia is associated with morbidity and mortality and frequently leads to transfusion of erythrocytes. The authors sought to directly compare the effect of high inspired oxygen fraction versus transfusion of erythrocytes on the anemia-induced increased heart rate (HR) in humans undergoing experimental acute isovolemic anemia. The authors combined HR data ...
Okonkwo Ozioma C OC Department of Neurology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, USA. - - 2011
To prospectively investigate whether baseline findings on specific cardiovascular indices are predictive of subsequent rate of decline in Attention-Executive-Psychomotor function in a cohort of ambulatory older adults with cardiovascular diseases (CVDs). One hundred seventy-two older adults with CVD were administered a neuropsychological battery of executive functions tests at study entry, ...
Walker K A - - 2011
This study assessed the heart rate, breathing rate and behavioural responses of 12 juvenile Steller sea lions during hot-iron branding under isoflurane anaesthesia. Physiological and behavioural measures were recorded in four periods: baseline (five minutes), sham branding (one minute), branding (approximately 2.7 minutes) and postbranding (five minutes). No difference in ...
Long Yun - - 2011
Phenomena that occur only at high pressures in bulk phases are often observed in nanopores, suggesting that the pressure in such confined phases is large. We report a molecular simulation study of the pressure tensor of an argon nanophase within slit-shaped carbon pores and show that the tangential pressure is ...
Bassetto Franco - - 2011
BACKGROUND: Negative pressure wound therapy (NPT) has achieved widespread success in the treatment of difficult wounds. However, its effects are but partially explored, and investigations mostly concentrated at the wound-dressing interface; a detailed histological description of the evolution of wounds under NPT is still lacking. MATERIALS AND METHODS: Subsequent punch ...
Hunt Andrew P - - 2011
The aim of this study was to determine the intraocular pressure response to differing levels of dehydration. Seven males participated in 90 min of treadmill walking (5 km h(-1) and 1% grade) in both temperate (22°C) and hot (43°C) conditions. At baseline and 30 min intervals intraocular pressure, nude body mass, body temperature and ...
Wang An-Bang - - 2011
To improve the existing trial-and-error process in designing a microfluidic T-junction, a systematic study of the geometrical (mainly the channel length) effects on the generated bubbly/slug flow was conducted to figure out basic design guidelines based on experimental and theoretical analyses. A driving system with dual constant pressure sources, instead ...
Gao Xin-Yan - - 2012
Auricular acupuncture has been described in ancient China as well as Egypt, Greece, and Rome. At the end of the 1950s, ear acupuncture was further developed by the French physician Dr. Paul Nogier. The goal of this study was to develop a new system for ear acupressure (vibration stimulation) and ...
Adrjanowicz Karolina - - 2011
In this paper we have studied the relative importance of thermal effects and volume in controlling structural relaxation of supercooled ibuprofen at ambient and elevated pressure. The relative contribution of both parameters on the structural relaxation times was estimated by means of the ratio EV/EP (i.e. the activation energy at ...
Pawlus S - - 2011
The complex relative permittivity of a non-crystallizable secondary alcohol, 5-methyl-2-hexanol, is measured over a wide range of temperatures and pressures up to 1750 MPa (17.5 kbar). The data at atmospheric pressure (P = 0.101 MPa) are analyzed in terms of three processes, and the results are in complete agreement with ...
Padilha Samantha T - - 2011
Sixteen cats were used to compare the cardiovascular and anesthetic effects of remifentanil (REMI) or alfentanil (ALF) in propofol-anesthetized cats undergoing ovariohysterectomy. After premedication with acepromazine, anesthesia was induced and maintained with a constant rate infusion of propofol (0.3mg/kg/min). REMI or ALF infusions were administered simultaneously with propofol. Heart rate ...
Vasunta Riitta-Liisa - - 2011
BackgroundThe lack of dropping in night-time blood pressure of 10% or more (nondipping) seems to associate with cardiovascular risk factors. The relationship between the dipping pattern and atherosclerosis is not clear. The night-time systolic blood pressure (SBP) determines the dipping status.MethodsWe investigated the connection between intima-media thickness (IMT) and dipping ...
Jiang Xinwei - - 2011
OBJECTIVES: The study was intended to investigate which commonly used anesthetic in intact animals has the least effect on the function of isolated hearts and cardiomyocytes among the anesthetized animals. METHODS: The hearts of male Sprague-Dawley rats were removed after they were anesthetized with ketamine, chloral hydrate or pentobarbital sodium, ...
Sert Ahmet - - 2011
BACKGROUND: Atomoxetine is a central norepinephrine reuptake inhibitor used to treat attention deficit/hyperactivity disorder. The effects of atomoxetine on cardiovascular functions and QT dispersion in children with attention deficit/hyperactivity disorder have not been previously reported. The aim of this study was to analyse cardiovascular functions and QT dispersion on the ...
Kertscho Harry - - 2011
Aim:  Administration of 100% oxygen (hyperoxic ventilation, HV) has been proven to ameliorate oxygen transport, tissue oxygenation, and survival in different models of extreme normovolemic and hypovolemic anaemia. However, up to date it is unknown, whether hyperoxic ventilation is also able to improve outcome of extreme anaemia if myocardial oxygen ...
Shabani Roxana - - 2011
A Laplace pressure gradient between a droplet and a liquid meniscus was utilized to create an on-demand constant flow rate capillary pump. Electrowetting on dielectric was implemented to induce the pressure gradient in the microchannel. For an initial droplet volume of 0.3 μL and a power of 12 nW a ...
Basu Abhisek - - 2011
High pressure x-ray diffraction and Raman spectroscopy studies have been carried out on non-stoichiometric sodium tungsten bronze, Na(0.025)WO(3). The high pressure investigations reveal a phase transition at about 2 GPa by a change of space group symmetry from P2(1)/n to P2(1)/c in the monoclinic cell followed by a second structural transformation ...
Laksmono Hartawan - - 2011
We determined the partial pressures p(J) (max), temperatures T(J) (max), monomer supersaturations S(J) (max), and characteristic times Δt(Jmax ) corresponding to the maximum nucleation rates of methanol in a supersonic nozzle. We found that T(J) (max) increased from 202.2 K to 223.7 K as p(J) (max) increased from 67.1 to 413.2 ...
Sharma V K - - 2011
The martensitic transition in Ni(50)Mn(34)In(16) alloy has been studied by measuring the magnetization of the alloy as a function of temperature, magnetic field and pressure. Magnetic field and pressure have opposite effects on the martensitic transition in this alloy; the martensitic transition temperature decreases with increasing magnetic field but it ...
Follonier Stéphanie - - 2011
The success of bioprocess implementation relies on the ability to achieve high volumetric productivities and requires working with high-cell-density cultivations. Elevated atmospheric pressure might constitute a promising tool for enhancing the oxygen transfer rate (OTR), the major growth-limiting factor for such cultivations. However, elevated pressure and its effects on the ...
Chung Meng-Jung - - 2012
This study investigates gender and walking speed (80%, 100%, 120% and 140% of preferred walking speed (PWS)) effects on plantar pressure parameters. In total, 30 healthy males and females, aged between 20 to 60 years, participated in this study. A plantar pressure measurement device was used to measure the peak ...
Cronkwright Dean G - - 2011
Foot problems are highly prevalent in older people. To treat such problems in this age-group prefabricated ('off-the-shelf') foot orthoses are frequently prescribed. However, such devices are susceptible to material compression and deformation, which may reduce their effectiveness over time. Therefore, the aim of this study was to compare the pressure-redistributing ...
Gao Shu-Guang - - 2011
ABSTRACT: Study Design. An in vitro human cadaveric biomechanical study.Objective. To compare adjacent-level intradiscal pressures (IDPs) and facet joint stresses among lumbar total disc arthroplasty (TDR), discectomy and fusion.Summary of Background Data. With increasing advocacy for the use of TDR procedure as a potential alternative to fusion in the management ...
Schneiders J J - - 2011
SUMMARY: The approach for treatment of large and fusiform intracranial aneurysms has evolved from stent-assisted coiling to treatment with flow-diverting stents. The treatment results for these stents are promising; however, early postprocedural aneurysm rupture has been described. The exact cause of rupture is unknown but might be related to intra-aneurysmal ...
Gazmuri Raúl J - - 2011
Aims: Ventilation at high respiratory rates is considered detrimental during CPR because it may increase intrathoracic pressure limiting venous return and forward blood flow generation. We examined whether ventilation at high, yet clinically plausible, tidal volumes could also be detrimental, and further examined effects on end-tidal pCO(2) (P(ET)CO(2)). Methods: Sixteen ...
Phillips Anna C AC School of Sport and Exercise Sciences, University of Birmingham, Birmingham, England, UK. - - 2011
Exaggerated haemodynamic reactions to acute psychological stress have been implicated in cardiovascular disease outcomes, while lower reactions have been considered benign. This study examined, in a large cohort, the prospective associations between stress reactivity and physical disability. Blood pressure and pulse rate were measured at rest and in response to ...
Tytus Richard H - - 2011
INTRODUCTION: The aim of the study was to assess the effects on blood pressure (BP) levels and control rates in hypertensive subjects receiving trandolapril as monotherapy or as part of an antihypertensive regimen in everyday Canadian clinical practice. METHODS: The MAVIKtory study was a multicenter, single-arm observational study in 601 ...
Schober Karsten E - - 2011
Objective-To evaluate the effects of treatment on respiratory rate, serum natriuretic peptide concentrations, and Doppler echocardiographic indices of left ventricular filling pressure in dogs with congestive heart failure (CHF) secondary to degenerative mitral valve disease (MVD) and dilated cardiomyopathy (DCM). Design-Prospective cohort study. Animals-63 client-owned dogs. Procedures-Physical examination, thoracic radiography, ...
Frances Maria F - - 2011
This study tested the hypothesis that the compliance (C) and viscoelasticity (K) of the forearm vascular bed are regulated differently by myogenic versus alpha adrenergic receptor (αAR) activation. Heart rate (HR) and waveforms of brachial artery blood pressure (Finometer) and forearm blood flow (Doppler ultrasound) were measured under baseline conditions ...
Holwerda Seth W - - 2011
There are important differences in autonomic function and cardiovascular responsiveness between African Americans (AA) and Caucasian Americans (CA). This study tested the hypothesis that carotid baroreflex (CBR) responsiveness is impaired in normotensive AA compared with normotensive CA at rest. CBR control of heart rate (HR) and mean arterial blood pressure ...
Abdelhak Yaakov - - 2011
Abstract The aims of this study were to evaluate the cardiac effects of subcutaneous terbutaline on the mother and fetus. Terbutaline was given in 250 or 500 μg doses to term gravidas not in labor. The mean arterial pressure (MAP), pulse, and uterine activity were measured. The fetal heart rate (FHR), ...
Itami Takaharu - - 2011
Cardiovascular effects of tramadol were evaluated in dogs anesthetized with sevoflurane. Six beagle dogs were anesthetized twice at 7 days interval. The minimum alveolar concentration (MAC) of sevoflurane was earlier determined in each dog. The dogs were then anesthetized with sevoflurane at 1.3 times of predetermined individual MAC and cardiovascular ...
Quimby Jessica M - - 2011
Physiologic parameters such as blood pressure, rectal temperature, heart rate, and respiratory rate are an important part of the medical assessment of a patient. However, these factors can potentially be affected by stress. The purpose of this study was to compare physiologic parameter data gathered from cats in the home ...
Trevisanuto Daniele - - 2011
AIM OF THE STUDY: To compare the performances (ease of insertion, time to establish effective ventilation and maximal inflation pressure) of classic(TM) (cLMA), ProSeal(TM) (PLMA) and Supreme(TM) (SLMA) Laryngeal Mask Airway when used in a neonatal airway management manikin by inexperienced delivery room trainees. Quality of the three devices as ...
Kawada Toru - - 2011
AIMS: To examine whether moderate efferent vagal nerve stimulation (VNS) attenuates the carotid sinus baroreflex-mediated arterial pressure (AP) regulation via its antagonism to the sympathetic system. MAIN METHODS: Carotid sinus baroreceptor regions were isolated from the systemic circulation in eight anesthetized and vagotomized rats. A staircase-wise input was imposed on ...
Pelà Giovanna - - 2011
For the purpose of detecting early left ventricle (LV) abnormalities in normotensive offspring of hypertensive parents (EH+), 23 normotensive sedentary male EH+ (age 25 ± 3 years) and 20 matched offspring of normotensive families (EH-), underwent: clinic bloop pressure (BP) measurement, 24-hour ambulatory BP monitoring (ABPM), frequency-domain parameters of autonomic ...
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