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Results 201 - 250 of 1236
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Haward Simon J - - 2012
We employ the techniques of microparticle image velocimetry and full-field birefringence microscopy combined with mechanical measurements of the pressure drop to perform a detailed characterization of the extensional rheology and elastic flow instabilities observed for a range of wormlike micellar solutions flowing through a microfluidic cross-slot device. As the flow ...
Secola Rita - - 2012
The primary objective of this study was to test the feasibility of creating a central venous catheter blood draw bundle checklist to ensure adherence to the evidence-based blood draw procedure. This study included establishing checklist reliability and validity and periodic observations in 2 inpatient pediatric oncology units. The findings provided ...
Kudla Marek J - - 2012
Objectives- To describe and assess the interobserver reproducibility of a new method for evaluation of ovarian vascularization using spatiotemporal image correlation-high definition flow (STIC-HDF). Methods- Stored 4-dimensional (4D) STIC-HDF volume data from 39 healthy pre-menopausal fertile women (aged <35 years) examined in the follicular part of the menstrual cycle by ...
Amundsen Erik K - - 2012
We compared the performance of the basophil count of 3 hematology instruments with a flow cytometric method (FCM) in which CD123 and CD193 were used as basophil markers. By analyzing 112 patient samples, we found the ADVIA 120 (Siemens Healthcare Diagnostics, Deerfield, IL) and CELL-DYN Sapphire (Abbott Diagnostics, Santa Clara, ...
Saleh Mahdi - - 2012
There are a limited number of studies comparing the Aperio mechanical thrombectomy device to other stent-based devices. In this paper, we compared the Aperio thrombectomy device to the Solitaire AB, FR and Revive devices in a model of the middle cerebral artery (MCA) within a modified pulsatile flow system. Thrombi ...
Bölenius Karin - - 2012
Venous blood sampling is a common procedure in health care. It is strictly regulated by national and international guidelines. Deviations from guidelines due to human mistakes can cause patient harm. Validated questionnaires for health care personnel can be used to assess preventable "near misses"--i.e. potential errors and nonconformities during venous ...
Kaewkamnerd Saowaluck - - 2012
Current malaria diagnosis relies primarily on microscopic examination of Giemsa-stained thick and thin blood films. This method requires vigorously trained technicians to efficiently detect and classify the malaria parasite species such as Plasmodium falciparum (Pf) and Plasmodium vivax (Pv) for an appropriate drug administration. However, accurate classification of parasite species ...
Menachery Anoop - - 2012
Human African trypanosomiasis or sleeping sickness is a deadly disease endemic in sub-Saharan Africa, caused by single-celled protozoan parasites. Although it has been targeted for elimination by 2020, this will only be realized if diagnosis can be improved to enable identification and treatment of afflicted patients. Existing techniques of detection ...
Poletajew SÅ‚awomir S Department of Urology, Interforest Specialist Hospital, Warsaw, - - 2012
The traditional assessment of blood loss during laparoscopic radical prostatectomy (LRP) is based on the blood volume collected intraoperatively in the suction device bottles. While this method is not perfect, analysis of changes in blood cell count (BCC) resulting from LRP is advisable. 71 men were submitted to LRP due ...
Wang ShuQi S Bio-acoustic MEMS in Medicine Laboratory, Department of Medicine, Division of Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, - - 2012
Sample preparation is a significant challenge for detection and sensing technologies, since the presence of blood cells can interfere with the accuracy and reliability of virus detection at the nanoscale for point-of-care testing. To the best of our knowledge, there is not an existing on-chip virus isolation technology that does ...
Kantarci Fatih - - 2011
OBJECTIVES: To investigate the differences between multiple sclerosis (MS) and control subjects by using extracranial venous grey-scale, colour and spectral Doppler ultrasound. METHODS: The study included 62 subjects with a definitive diagnosis of MS and 54 control subjects. The cross sectional area (CSA), reflux during Valsalva manoeuvre, presence or absence ...
Yoon Hyun Jin - - 2011
OBJECTIVES: We assign the anatomical names of functional activation regions in the brain, based on the probabilistic cyto-architectonic atlas by Anatomy 1.7 from an analysis of correlations between regional cerebral blood flow (rCBF) and clinical parameters of the non-demented Parkinson's disease (PD) patients by SPM8. We evaluated Anatomy 1.7 of ...
Offidani Emanuela - - 2011
The concept of allostatic load (AL) represents the cost of the continual adjustment of the internal milieu required by an organism to adapt to different challenges. The majority of studies concerning AL have focused mainly on identifying its biological components. Recently, new criteria for a clinimetric evaluation of AL have ...
Drummond Peter D - - 2011
To investigate blushing in relation to blushing propensity scores and core elements of social anxiety, facial blood flow was monitored in 86 normal volunteers during an embarrassing task (singing a children's song). Increases in facial blood flow were greater in women than men, as were scores on the Blushing Propensity ...
Esen Ferhan - - 2011
The full diagnostic potential of the fractal complexity measure, α, of detrended fluctuation analysis (DFA) has not been realized yet. To reveal the impaired mechanisms in the blood flow regulation in patients with essential hypertension (EHT), we studied the laser Doppler flowmetry (LDF) time series by applying DFA. Forearm microvascular ...
Warfel Regina M - - 2011
BACKGROUND: Past blood donation research has relied on explicit (self-report) measures to understand blood donation motivations, but has not yet considered the inherent implicit or automatic processing involved in decision-making. This study addresses this limitation by introducing and validating two novel implicit measures of blood donation attitudes. STUDY DESIGN AND ...
Vijverberg Marianne A W - - 2011
AIMS: This study was conducted to try to objectify assessment of pediatric uroflowmetry curves. MATERIALS AND METHODS: Nine professionals in pediatric incontinence care judged 480 pediatric uroflows. On a 1-5 scale, where 1 = anomalous and 5 = normal, uroflows were assessed on four items: staccato, interrupted, flow time and obstruction. Eighty uroflows were ...
Marquering H - - 2011
Straight-forward quantification of variations of flow patterns within aneurysms fails to accurately describe flow patterns of interest. We applied a multi-scale decomposition of the flow in well-defined patterns to detect and quantify flow patterns in an aneurysm phantom that was studied with three different modalities: MRI, CFD, and PIV. The ...
Huang Shih-Han S - - 2011
Background/Aims:Access blood water flow rate (Qaw) can be measured during hemodialysis using an online effective ionic dialysance (EID) methodology. Fresenius employ this methodology in their 2008K dialysis machine. The machine computer converts Qaw to an access blood flow rate (Fresenius Qa) using a generic blood water constant (BWC). We wished ...
Seguin A - - 2011
We present in this Letter experimental results on the bidimensional flow field around a cylinder penetrating into dense granular matter, together with drag force measurements. A hydrodynamic model based on extended kinetic theory for dense granular flow reproduces well the flow localization close to the cylinder and the corresponding scalings ...
Pereira-da-Silva Luis - - 2011
Aim: To evaluate the ability of SC indexes in discriminating acute responses to different heel prick procedures. Methods: Observational cohort study of a systematic, convenience sample of neonates with clinical indication of capillary blood sampling by heel prick, either for glycaemia or for blood gas analysis. The Neonatal Infant Pain ...
Hart Alister J - - 2011
Many factors affect the blood metal ion levels after metal-on-metal (MOM) hip arthroplasty. The main surgically adjustable variable is the amount of coverage of the head provided by the cup which is a function of the inclination and version angles. However, most studies have used plain radiographs which have questionable ...
Corrie Kathryn - - 2011
Background:  In 2008 there were 262 episodes of incorrect blood component transfusion. Safer Practice Notice 14, Right patient, right blood, introduced a mandatory requirement for all clinical staff involved in the blood transfusion process to be assessed against competencies developed on a national basis. It was recommended that the assessment should ...
Hahn Gitte H - - 2011
Impaired cerebral autoregulation (CA) is common and associated with brain damage in sick neonates. Frequency analysis using spontaneous changes in arterial blood pressure (ABP) and cerebral near-infrared spectroscopy (NIRS) has been used to measure CA in several clinical studies. Coherence of the NIRS and ABP signals (i.e. correlation in the ...
Ferreira Rui R F - - 2011
Dog erythrocyte antigen (DEA) 1.1 is the antigen considered most responsible for severe hemolysis owing to incompatible blood transfusions in previously sensitized dogs. Few reports describe the frequency of DEA 1.1 expression in European dogs, and there are no reports in dogs from Portugal. The aims of this study were ...
Mori Akihiro - - 2011
Artificial pancreas technology, involving "closed-loop" controls with real-time blood glucose monitoring, has been increasing in reliability as its potential for clinical use and application grows. One such device, based on this technology, is the STG-22 (Nikkiso Co., Ltd., Tokyo, Japan) artificial pancreas apparatus. In order to assess the reliability and ...
Teoh Chai Lean - - 2011
The misfolding and self-assembly of proteins into amyloid fibrils that occurs in several debilitating diseases is affected by a variety of environmental factors including mechanical factors associated with shear flow. We examined the effects of shear flow on amyloid fibril formation by human apolipoprotein (apo) C-II. Shear fields, 150 s-1, ...
Peruski Ann M - - 2011
Objective-To directly assess microcirculatory changes associated with induced hemorrhagic shock by use of sidestream dark field microscopy (SDM) and correlate those values with concurrently measured macrovascular and blood gas variables in healthy anesthetized dogs. Animals-12 adult dogs. Procedures-Dogs were anesthetized and splenectomized. Instrumentation and catheterization were performed for determination of ...
Benk Christoph - - 2011
OBJECTIVE: The use of paracorporeal ventricular assist devices has become a well-established procedure for patients with cardiogenic shock. However, implantation of ventricular assist devices is often associated with severe complications, such as thrombosis inside the ventricular assist device and subsequent embolic events. It was the purpose of this study to ...
Fenty Renee K - - 2011
Objective-To evaluate whole blood hemostasis by means of thromboelastography in dogs with primary immune-mediated hemolytic anemia (IMHA) to determine whether these dogs had evidence of hypercoagulability prior to the administration of immunosuppressant medications, blood transfusion products, or anticoagulant agents. Design-Evaluation study. Animals-11 client-owned dogs admitted to a teaching hospital for ...
Kamura Keiichiro - - 2011
The internal organs of vertebrates show distinctive left-right asymmetry. Leftward extracellular fluid flow at the node (nodal flow), which is generated by the rotational movement of node cilia, is essential for left-right patterning in the mouse and other vertebrates. However, the identity of the pathways by which nodal flow is ...
Zaldivar-Lopez Sara S Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, Columbus, OH 43210, USA. - - 2011
The purposes of this study were to evaluate the oxygen affinity of hemoglobin (Hb) in healthy retired racing Greyhounds via cooximetry, and to establish reference intervals for blood gases and cooximetry in this breed. Prospective clinical study. University Teaching Hospital. Fifty-seven Greyhounds and 30 non-Greyhound dogs. Venous blood samples were ...
Caruselli Marco - - 2011
The use of Central Venous Catheters (CVCs) represents an important step in the management of the surgical, onco-hematology and critically ill patients. CVCs in neonates, like in adult patients, are mainly used to infuse hyperosmolar solutions, to take blood samples and for hemodynamic monitoring. The need for CVCs is higher ...
Kim G A - - 2011
It is known that cloned animals produced by somatic cell nuclear transfer (SCNT) using the same donor cells show immunological compatibility for tissue transplantation. However, immunological compatibility for tissue transplantation or blood transfusion between cloned animals and transgenic cloned animals originating from the same donor cell has not been assessed ...
Fukushima Fabíola B - - 2011
Cardiorespiratory and blood gas alterations were evaluated in 6 healthy dogs that underwent a laparoscopic procedure using isoflurane anesthesia and carbon dioxide (CO(2)) pneumoperitoneum for 30 min. Heart rate, respiratory rate, body temperature, venous blood pH, partial pressure of CO(2) and oxygen, oxygen saturation, total carbon dioxide (TCO(2)) and bicarbonate ...
Keir I - - 2010
An eight-month-old male Pomeranian was presented with hypovolaemic shock 7 days after successful oesophageal foreign body removal. On presentation the dog was anaemic and no coagulation abnormalities were detected. A fluid-filled oesophagus was visible on thoracic radiography and frank blood was aspirated from the oesophagus following oro-oesophageal intubation. Fluid resuscitation ...
Huang Jiansheng - - 2011
Purpose: The heat-sink effect produced by rapid blood flow through large vessels (diameter (D) ≥ 5 mm) is an important factor that influences ablation zone size after radiofrequency ablation (RFA). Currently, however, the interactions between hepatic RFA lesions and large vessels are not well understood. The purpose of this study was to examine ...
Mizukami Hajime - - 2010
A 48-year-old woman was found dead on a chair in her living room. She had received dialysis every day because of chronic renal failure for the past 15 years. On a table beside her, there was a mirror and 10-mL syringe on a napkin. A stopper was out of place ...
Iazbik Maria Cristina - - 2010
Blood groups in dogs are designated as dog erythrocyte antigen (DEA) 1.1, 1.2, 3, 4, 5, 7, and Dal. There is limited information about the frequency of different antigens in Greyhound dogs, despite their frequent use as blood donors. The aims of this study were to determine the frequencies of ...
Mineshima Michio - - 2011
Several types of dialyzer with enhanced internal filtration have been introduced for clinical application as a means of improving the efficiency of solute removal, and the enhanced internal filtration in these dialyzers has increased the convective transport of the solute besides the diffusive transport. The internal filtration flow rates (Q(IF)) ...
Sato Takashi - - 2011
In Japan, acetate-free biofiltration (AFBF) became commercially available in the year 2000, and these products have been reported to be clinically effective for controlling the decrease of blood pressure during dialysis or various types of dialysis intolerance. And more, acetate-free dialysis fluid was made clinically available in 2007, acetate-free hemodialysis ...
Yamashita Akihiro C - - 2011
Commercial dialyzers were investigated both in vivo and in vitro for a better selection of dialyzers for hemodiafiltration (HDF) therapy. In in vivo online HDF, since a reduction rate of α(1)-microglobulin (α(1)-MG) was determined by the amount of albumin loss regardless of blood flow rate (Q(B)), ultrafiltration rate (Q(F)), and ...
Wienbeck Susanne - - 2010
OBJECTIVE: The purpose of this article is to prospectively assess the frequency and type of IV injection site complications associated with high-flow power injection of nonionic contrast medium in MDCT. SUBJECTS AND METHODS: Contrast-enhanced (300-370 mg iodine/mL) MDCT examinations with high flow rates (up to 8 mL/s) using automatic CT ...
Caridi James - - 2010
Clinical outcomes associated with hemodialysis catheters often depend on correct tip positioning. Improper positioning of the catheter tips can reduce blood flow and lead to long-term complications. The authors evaluated the clinical performance of the Arrow Cannon II Plus hemodialysis catheter (Teleflex Medical, Research Triangle Park, North Carolina), a catheter ...
Basile Carlo - - 2011
Several studies already stressed the importance of haemodialysis (HD) time in the removal of uraemic toxins. In those studies, however, also the amount of dialysate and/or processed blood was altered. The present study aimed to investigate the isolated effect of the factor time t (by processing the same total blood ...
Mohan Sumit - - 2010
Effective ionic dialysance (EID) is an online measure of hemodialysis (HD) effective urea clearance that is calculated using changes in dialysate sodium conductivity. Effective ionic dialysance is blood flow (Q(b)) dependent. The presence of significant (> or =5%) access recirculation (sAR) during dialysis lowers EID at a given Q(b), thereby ...
Van Hoek Frank - - 2010
BACKGROUND: During haemodialysis, some patients experience intensification of symptoms of haemodialysis access-induced distal ischaemia. Aim of this study is to compare the effects of two different regimens of arterial blood flow in patients with an arteriovenous access. METHODS: A questionnaire identified 10 patients that subjectively experienced ischaemic symptoms during haemodialysis. ...
Oztürkmen Seda - - 2010
A 4-year-old boy with acute lymphoblastic leukemia (ALL) was inserted a central venous catheter into right vena jugularis interna, whereas on BFM-ALL (Protocol 1) therapy. He developed progressive anemia, thrombocytopenia, schistocytes with triangular or crescent shapes, microspherocytes and teardrop cells in the peripheric blood smear, elevated lactate dehydrogenase, and decreased ...
Castellarnau Alex - - 2010
Real-time determination of Kt/V can be provided by monitoring ultraviolet absorbance of solutes in spent dialysate. This not only overcomes dependency on error-prone pre- and post-dialysis blood sampling; it circumvents inaccuracies associated with estimating the urea distribution volume and its high measurement frequency tightly reflects the course of the dialysis. ...
Lindsay Robert M - - 2010
Measurement of blood flow rate (Qa) is used to monitor dialysis access, AV fistulas, and grafts. Indicator dilution measurements of the recirculation (R) induced by reversal of hemodialysis blood lines are commonly used. This plus the dialysis circuit flow (Qb) allows calculation of Qa. R also changes the conductivity, which ...
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