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Results 401 - 450 of 2073
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Nguyen Xuan P - - 2011
Abstract In the present article, we describe the validation of a new non-invasive method for measuring blood pressure (BP) which also enables to determine the three BP values: systolic, diastolic and mean value. Our method is based on the pulse transit time (PTT) measurement along an artery directly at the ...
Johnston Matthew S - - 2011
Although the use of indirect methods for measuring blood pressure has become commonplace in dogs and cats, it is uncertain whether these methods can be extended to avian species with any proven accuracy or precision. To evaluate the precision of indirect blood pressure measurement in conscious psittacine birds by the ...
Vieira Junior Francisco Ubaldo - - 2011
INTRODUCTION: Roller pumps play an important role in extracorporeal circulation. However, occlusion of the rollers should be adequately performed and this can be adjusted mainly by two methods: static and dynamic. OBJECTIVE: To investigate how the Brazilian perfusionists adjust arterial roller pumps in their services and evaluate the application of ...
Schizas Alexis M P - - 2011
Anal manometry is routinely used in the assessment of the anal sphincters in patients with fecal incontinence or suspected sphincter injury. Such physiological information is complementary to the anatomical assessment provided by anal endosonography. The evolution of 3-dimensional anal endosonography provides more diagnostically useful information in complex cases. Vector volume ...
Sato Koichi - - 2011
Since direct hemoperfusion with polymyxin B immobilized fiber (PMX-DHP) received its product certification for use in Europe in 1998, several prospective randomized controlled trials (RCTs) have been conducted in European countries. The first RCT, performed in six European academic medical centers in 2005, concluded that PMX-DHP is associated with improved ...
Pees Edward H - - 2011
A method is presented for efficiently computing the propagating pressure field backscattered by an arbitrarily shaped, weakly scattering, three-dimensional object. This is accomplished by drawing upon a previously reported relationship between the boundary condition on a two-dimensional radiating aperture and the pressure propagating along an axis normal to the aperture, ...
Hsiu H - - 2011
The blood pressure (BP) waveform is suggested to reflect the whole-body blood supply distribution, but its non-invasive assessment is not sufficiently user friendly for practical applications. The present authors studied the correlation between BP and photoplethysmography (PPG) waveforms, with the aim of determining the optimal range for contact pressure stimulation ...
Oosterlinck Maarten - - 2011
Objective-To determine the accuracy of pressure plate kinetic asymmetry indices (ASIs) for diagnosis of unilateral hind limb lameness in dogs and their correlation with visual gait assessment (VGA) scores. Animals-9 healthy dogs and 16 dogs with previously diagnosed unilateral rupture of the cranial cruciate ligament and concurrent unilateral hind limb ...
Schmölzer G M - - 2011
We describe how a Respiratory Function Monitor (RFM) can aid during simulation-based manikin training. We demonstrate how a RFM can provide quantitative and qualitative assessment of the trainee's resuscitation technique. A RFM can assist i) to identify correct mask hold and positioning techniques; ii) to assess the delivered airway pressures ...
Jonely Holly - - 2011
BACKGROUND: Information is limited about the relationships between clinical measures of static foot posture and peak plantar pressures under the medial column of the foot. The purpose was to examine these relationships during static standing and walking. METHODS: A single-group exploratory design using correlation and regression was used to determine ...
Reibstein S - - 2011
We report on Brillouin and in situ small angle X-ray scattering (SAXS) analyses of topological heterogeneity in compressed sodium borosilicate glasses. SAXS intensity extrapolated to very low angular regimes, I(q = 0), is related to compressibility. From Brillouin scattering and analyses of the elastic properties of the glass, the Landau-Placzek ...
Aquilina Kristian - - 2011
Object Intracranial pressure (ICP) monitors are currently based on fluid-filled, strain gauge, or fiberoptic technology. Capacitive sensors have minimal zero drift and energy requirements, allowing long-term implantation and telemetric interrogation; their application to neurosurgery has only occasionally been reported. The aim of this study was to undertake a preliminary in ...
Zhu Yong-Sheng - - 2011
This study explored a novel method for measuring cerebrovascular impedance to quantify the relationship between pulsatile changes in cerebral blood flow (CBF) and arterial pressure. Arterial pressure in the internal or common carotid artery (applanation tonometry), CBF velocity in the middle cerebral artery (transcranial Doppler), and end-tidal CO(2) (capnography) were ...
Krol Wojciech - - 2011
Aims: The athlete's heart is a widely discussed topic regarding the adaptation of the left ventricle (LV) to regular training. The data on the morphology and-even more-the function of the right ventricle (RV) are less well studied. The aim of the study was to assess the influence of prolonged exertion ...
Gundogdu Gokhan - - 2011
Abstract Objective. In a cystometry procedure in a child with myelomeningocele (MMC), a pressure increase in the abdominal pressure (P (abd)) tracing was detected during filling. This pressure alteration was not related to other known events (straining, talking, rectal contractions). This study was conducted to investigate this phenomenon. Material and ...
Marino C L - - 2011
Background: Greyhounds are known to have a higher systemic arterial blood pressure (BP) than non-Greyhound dogs. Objectives: The purpose of this study was to determine whether the high systemic BP was because of the white-coat effect. Animals: Twenty-two healthy retired racing Greyhounds (RRG) enrolled in a blood donation program. Materials/Methods: ...
Lee Dong Woog DW Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, - - 2011
We fit the size distribution of liquid-ordered (L(o)) domains measured from fluorescence images of model cytoplasmic myelin monolayers with an equilibrium thermodynamic expression that includes the competing effects of line tension, λ, dipole density difference, Δm, and the mixing entropy. From these fits, we extract the line tension, λ, and ...
Meder Benjamin - - 2011
BACKGROUND: Since their introduction, genetically modified mice have become more and more important to examine molecular mechanisms involved in vascular growth. Today the gold standard for measuring vessel conductivity is to directly assess in vivo perfusion. However, this usually becomes more complicated the smaller the animal, especially due to the ...
Kwiatek M A MA Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611-2951, USA. - - 2011
The esophagogastric junction (EGJ) is a complex structure that challenges accurate manometric recording. This study aimed to define EGJ pressure morphology relative to the squamocolumnar junction (SCJ) during respiration with 3D-high resolution manometry (3D-HRM). A 7.5-cm long 3D-HRM array with 96 independent solid-state pressure sensors (axial spacing 0.75 cm, radial ...
Tarafder Abhijit - - 2011
In SFC, the key chromatographic parameters, the retention factors and the column efficiency, strongly depend on the density of the mobile phase. This indicates that the isodensity or isopycnic plots, drawn on the pressure-temperature plane, can provide an effective tool to help analyzing how the chromatograms obtained in SFC evolve, ...
Kollias Anastasios - - 2011
The ankle-brachial index (ABI) is a method used widely for peripheral arterial disease (PAD) diagnosis and cardiovascular risk prediction. This study validated automated ABI measurements taken using an oscillometric blood pressure (BP) monitor allowing simultaneous arm-leg BP measurements. A total of 93 patients (hypertension 83%; dyslipidemia 72%; diabetes 45%; cardiovascular ...
Suwannachat B - - 2011
Please cite this paper as: Suwannachat B, Laopaiboon M, Tonmat S, Siriwachirachai T, Teerapong S, Winiyakul N, Thinkhamrop J, Lumbiganon P. Rapid versus stepwise application of negative pressure in vacuum extraction-assisted vaginal delivery: a multicentre randomised controlled non-inferiority trial. BJOG 2011; DOI: 10.1111/j.1471-0528.2011.02992.x. Objective  To evaluate whether the application of ...
Leung Lettie C K - - 2011
Purpose To determine the prevalence, risk factors for and patterns of hypertension in Chinese adolescents based on a territory-wide school based screening programme in Hong Kong. Methods Cross-sectional anthropometric and oscillometric blood pressure (BP) measurements and lifestyle information were obtained as part of a growth survey of students from randomly ...
Kiełczyński P - - 2011
Viscosity measurements were carried out on triolein at pressures from atmospheric up to 650MPa and in the temperature range from 10°C to 40°C using ultrasonic measuring setup. Bleustein-Gulyaev SH surface acoustic waves waveguides were used as viscosity sensors. Additionally, pressure changes occurring during phase transition have been measured over the ...
Jessani Saleem - - 2012
Urine albumin excretion in the high normal range [urine albumin to creatinine ratio (UACR) 10-29 mg/g)] predicts hypertension in European-origin populations. However, the prognostic significance of UACR in the high normal range for incident hypertension is unclear in Indo-Asians. The objective of this study was to examine the relationship of ...
Qin Feng - - 2011
Ultrabroadband radiation from Yb<sub>2</sub>O<sub>3</sub> at ambient and low air pressures was investigated under the excitation of a 980 nm diode laser. The radiation was confirmed to be blackbody radiation, and it is sensitive to environmental air pressure in the way that the integrated radiation intensity decreases linearly with increasing air pressure. ...
Theiler Lorenz G - - 2011
BACKGROUND:: This prospective, randomized, controlled trial compares the performance of the pediatric i-gel (Intersurgical Ltd., Wokingham, United Kingdom) with the Ambu AuraOnce laryngeal mask (Ambu A/S, Ballerup, Denmark) in anesthetized and ventilated children. METHODS:: With ethics committee approval and written informed consent, the authors included 208 children, aged 0-17 yr, ...
Pedrini Luciano A - - 2011
Purpose: Intra-individual comparison of technical and clinical characteristics of two hemodiafiltration (HDF) strategies, namely, post-dilution HDF (post-HDF) with a high-flux a-polysulfone hemodiafilter and reverse mid-dilution HDF (MD-HDF). ?Methods: Fifteen patients who were stable on RRT were randomly submitted to both HDF techniques under matched operational conditions. Removal of small and ...
Sérgio Chiarelli Paulo - - 2011
BACKGROUND: Urban air pollutants are associated with cardiovascular events. Traffic controllers are at high risk for pollution exposure during outdoor work shifts. OBJECTIVE: The purpose of this study was to evaluate the relationship between air pollution and systemic blood pressure in traffic controllers during their work shifts. METHODS: This cross-sectional ...
Liekens Anuschka - - 2011
By comparing the pressure drop in a column where the meso-pores of the particles have been blocked using the Total Pore Blocking (TPB) method to measure the interstitial volume of the column with that in the same column when the particle meso-pores are fully open, it could be demonstrated in ...
Lobov G I - - 2011
We studied the relationship between the length and tension in isolated strips of the capsules of bovine mesenteric lymph nodes. The deformation-strain and radius-pressure relationships were established in the lymph node. The capsule possesses high distensibility, modulus of elasticity at optimal tension was 0.09×10(5) N/m(2). Smooth muscle activation produces a ...
Tobari Hiroko - - 2011
Objectives: To provide an occupational physician-pharmacist cooperative management for hypertension, we aimed to improve blood pressure (BP) control for workers with high-normal BP or hypertension. Method: Health checkups were performed from May 2005 to May 2008 for male professional grooms and exercise riders aged 20-69 years working at Miho Training ...
Fonseca Jeison - - 2011
This article presents improvement on a physical cardiovascular simulator (PCS) system. Intraventricular pressure versus intraventricular volume (PxV) loop was obtained to evaluate performance of a pulsatile chamber mimicking the human left ventricle. PxV loop shows heart contractility and is normally used to evaluate heart performance. In many heart diseases, the ...
Wangsupadilok Boonchai - - 2011
To investigate the impact of central corneal thickness (CCT) on the intraocular pressure (IOP) measurement by non-contact tonometry (NCT). Eye examination data of normal volunteers aged between 18-96 years and intraocular pressure less than 22 mmHg were retrospectively reviewed. Subjects with possible conditions that affected the results of CCT and ...
Lahham Shadi - - 2011
Digital tourniquets used in the emergency department have been scrutinized due to complications associated with their use, including neurovascular injury secondary to excessive tourniquet pressure and digital ischemia caused by a forgotten tourniquet. To minimize these risks, a conspicuous tourniquet that applies the least amount of pressure necessary to maintain ...
Shechtman M Y - - 2011
Lung separation is frequently used during lung resection to facilitate surgery and hypoxaemia may occur because of increasing pulmonary shunt. In this study, we tested a method of mini-ventilation to the non-dependent lung and compared it to continuous positive airway pressure (CPAP) to improve oxygenation during lung resection. Thirty-eight adult ...
Chauveau M - - 2011
To compare results of numerical simulation of lower limb venous return with those of in vivo measurements, in normal subjects, and those with venous incompetence. the venous return simulator (VRS) is a mathematical model which takes into account architecture, dimensions, and compliance of the venous network, blood viscosity, valve function, ...
Lee Ji Ho - - 2011
Many pieces of previous research on measuring blood pressure (BP) using different methods focused on the disparity in the results. However, none of them dealt with the disparity caused by the difference in age and inhalation anesthetics. We attempted to find the variance in accordance with age, body part, and ...
Laing Sheridan S Department of Mechanical Engineering, Melbourne School of Engineering, University of Melbourne, - - 2011
This review addresses the different prosthetic socket designs for trans-tibial amputees, the biomechanics behind the designs and the current state of the field. Of particular focus is the classic patella-tendon bearing (PTB) socket and the more recent sockets manufactured using pressure casting techniques and the theory, biomechanics and clinical implications ...
Richmond Susan A SA Department of Speech, Language, and Hearing Sciences, The University of Arizona, Tucson, Arizona 85721, - - 2011
Standing waves can cause measurement errors when sound-pressure level (SPL) measurements are performed in a closed ear canal, e.g., during probe-microphone system calibration for distortion-product otoacoustic emission (DPOAE) testing. Alternative calibration methods, such as forward-pressure level (FPL), minimize the influence of standing waves by calculating the forward-going sound waves separate ...
Hug Caleb W CW Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA. - - 2011
To compare invasive blood pressure measurements recorded using an automated archiving method against clinician-documented values from the same invasive monitor and determine which method of recording blood pressure is more highly associated with the subsequent onset of hypotension. Retrospective comparative analysis. Intensive care patients in a university hospital. Mixed medical/surgical ...
Grossi Alberto - - 2011
In order to investigate the synergistic cooperation between high pressure treatment (HP) and carrot dietary fibre, two formulations of pork sausages containing different percentage of carrot dietary fibre were pressurized at 500 and 600MPa, for 1 second, 3, 6, and 9min at 40, 50, and 60°C. HP treatments significantly increase ...
Cho Jun Hwi - - 2011
AIM OF STUDY: In the present study, we investigated trans-nasal cooling in settings of pulseless electrical activity (PEA). We hypothesized that early trans-nasal cooling during CPR improves outcomes when cardiac arrest is associated with PEA. METHODS: Ventricular fibrillation (VF) was electrically induced in 16 domestic male pigs weighing 40±3kg. After ...
Pereira Fabiana Quartiero - - 2011
Objective  To compare intraocular pressure (IOP) measurements made on healthy adult rabbits without the effect of tranquilizers using the new applanation tonometer, Tono-Pen Avia(®) , and the rebound tonometer Tonovet(®) . Methods  Intraocular pressure was measured throughout the day (6:00, 9:00, 12:00, 15:00, and 18:00 h) in 38 adult New Zealand ...
Chang Yu - - 2011
In various conditions of blood demand of circulatory system, the autonomic regulations system of body regulates the heart rate (HR) to maintain the arterial pressure (AP) constant, where the HR is considered as the controlled variable indicating the blood demands of the circulatory system. Therefore, model-free adaptive controller is used ...
Nikischin Werner - - 2011
OBJECTIVE:: A device for the application of continuous positive airway pressure to switch injected breathing gas to the outlet during expiration, known as Infant Flow, claims to reduce work of breathing and peak pressure change. So far the Infant Flow system has been investigated in lung models with tidal volumes ...
Vardeman Charles F CF - - 2011
We have developed a new isobaric-isothermal (NPT) algorithm which applies an external pressure to the facets comprising the convex hull surrounding the system. A Langevin thermostat is also applied to the facets to mimic contact with an external heat bath. This new method, the "Langevin Hull", can handle heterogeneous mixtures ...
Spurrier Edward - - 2011
It is common practice in wrist arthroscopy to suspend the patient's arm using Chinese finger traps and to distract the wrist joint by applying weight to the arm at the elbow. This may apply significant pressure to the fingers, and potentially damage the digital nerves. We examined the pressure applied ...
Durrani Anisa M - - 2011
A cross-sectional study among 701 school children (12-16 years) was conducted in Aligarh to find out the prevalence of hypertension and to correlate school going adolescent's blood pressure with age, sex, height and weight. The weight was taken by a standardized weighing machine while height was measured using a standard ...
Deprez Jean-François - - 2011
Pressure ulcers are areas of soft tissue breakdown induced by a sustained mechanical stress that damages the skin and underlying tissues. They represent a considerable burden to the society in terms of health care and cost. Yet, techniques for prevention and detection of pressure ulcers still remain very limited. In ...
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