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Ricci Kristin S KS Department of Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, - - 2014
Transfusion of blood products requires a vascular port. Use of an indwelling central venous catheter (CVC) provides this port readily and safely in general; however, potential risks require assessment. The objective was to examine septic reactions to blood transfusions performed via CVCs owing to subclinical microbial catheter colonization. All transfusion ...
Li Min M Department of Endocrinology and Metabolism, Institute of Endocrinology, Liaoning Provincial Key Laboratory of Endocrine Diseases, The First Affiliated Hospital of China Medical University, Shenyang 110001, PR - - 2014
To explore whether the first or the second drop of blood is more suitable for the self-monitoring of blood glucose (SMBG). SMBG was employed in hospitalized patients using the first and second drop of blood. Venous blood glucose was measured meanwhile. The differences in blood glucose measurements were then compared ...
Schierenbeck Fanny - - 2014
Lactate is a marker of hypoperfusion and may be used for risk assessment in critically ill patients. Although evidence suggests that repeated lactate measurements are of clinical interest, how and when lactate should be analyzed is controversial. Intravascular microdialysis provides a novel method for the continuous monitoring of lactate, which ...
Liu Manju M Department of Biomedical Engineering, Wayne State University, Detroit, - - 2014
Idiopathic Parkinson's disease (IPD) remains one of those neurodegenerative diseases for which the cause remains unknown. Many clinically diagnosed cases of IPD are associated with cerebrovascular disease and white matter hyperintensities (WMHs). The purpose of this study was to investigate the presence of transverse sinus and extracranial venous abnormalities in ...
Staelens Anneleen S E AS Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium; Department of Obstetrics & Gynaecology, Ziekenhuis Oost Limburg, Genk, Belgium. Electronic address: - - 2014
The nature of venous Doppler waves is highly variable. An additional electrocardiogram (ECG) improves the interpretation of venous Doppler wave characteristics and allows measurement of venous pulse transit time. The purpose of this study was to assess the reproducibility of ECG-guided repeated measurements of venous Doppler flow characteristics before and ...
Zakharov Sergey S Department of Occupational Medicine, Toxicological Information Center, General University Hospital and First Faculty of Medicine of Charles University in Prague, Prague, Czech - - 2014
During an outbreak of methanol poisonings in the Czech Republic in 2012, we were able to study methanol and formate elimination half-lives during intermittent hemodialysis (IHD) and continuous veno-venous hemodialysis/hemodiafiltration (CVVHD/HDF) and the relative impact of dialysate and blood flow rates on elimination. Data were obtained from 11 IHD and ...
Fryer Simon M SM School of Sport and Exercise, University of Gloucestershire, Gloucester, United - - 2014
Venipuncture is expensive, invasive and impractical for many sport science and clinical based settings. Salivary free cortisol is often cited as a non-invasive practical alternative. However, when cortisol concentrations exceed the corticosteroid binding globulin (CBG) point of 500nmol·L-1 a lack of agreement between salivary and venous blood cortisol has been ...
Monti L L From the Unit of Neuroimaging and Neurointervention (L.M., E.M., S.L., U.A., M.B., A.Z., P.G.), Department of Neurological and Sensorial Sciences, Azienda Ospedaliera Universitaria Senese, Santa Maria alle Scotte General Hospital, Siena, Italy; Department of Medicine, Surgery and Neuroscience (P.P.), University of Siena, Siena, Italy; and Unit of Endovascular and Percutaneous Therapy (A.C.), Clinica Nuestra Señora del Rosario, Madrid, - - 2014
The autonomic nervous system maintains constant cerebral venous blood outflow in changing positions. Alterations in cerebral autoregulation can be revealed by postural changes at quantitative color Doppler sonography. The aim of this study was to reach an optimal cutoff value of the difference between the cerebral venous blood outflow in ...
Mathews Lindsey A LA Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, - - 2014
To determine if lactate concentrations in jugular venous and auricular arterial blood differ in anesthetized sheep. Prospective, controlled experimental study. Twelve healthy adult ewes, 4-7 years and weighing 62-77 kg. Jugular venous blood was collected before anesthesia (PreOv ) for measurement of lactate concentration, packed cell volume and total protein. Ewes were ...
Ilkhchoui Yashar Y Department of Anesthesiology and Critical Care Medicine, University of New Mexico, School of Medicine, Albuquerque, NM 87106, USA. Electronic address: - - 2014
A 26 year old primigravida with preeclampsia was diagnosed with a cerebral venous thrombosis 6 days following Cesarean section. The diagnosis was initially challenging due to the patient's history of migraines, the preeclampsia, multiple attempts at spinal anesthesia for Cesarean section, and a dural puncture while performing epidural blood patch.
Langston C C Bobst Hospital of the Animal Medical Center, New York, - - 2014
Intraluminal thrombosis of central venous catheters used for renal replacement therapy (RRT) decreases the ability to provide adequate treatment. Alteplase is a recombinant tissue plasminogen activator that has been used to improve the function of catheters used for RRT in humans. To retrospectively review alteplase instillation in dysfunctional catheters used ...
Gram Anne S AS aDepartment of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen bUnit for Thrombosis Research, Institute of Public Health, University of Southern Denmark and Department of Clinical Biochemistry, Hospital of South West Denmark, Esbjerg, - - 2014
Effects of venous blood arterialization on cardiovascular risk markers are still unknown. We evaluated biomarkers of inflammation, coagulation, fibrinolysis, and endothelial function in arterialized compared with regular venous blood. Cubital venipunctures were obtained from 10 healthy volunteers. Arterialization was generated by 10 min heating of the contralateral hand. Concentrations of albumin, ...
Nauseef William M WM Inflammation Program and Department of Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Coralville, IA, - - 2014
Venous blood provides a ready source of large numbers of unstimulated granulocytes and mononuclear cells. Exploiting the differences in the relative densities of the leukocytes circulating in venous blood, one can separate leukocytes from erythrocytes as well as isolate the individual leukocyte populations in high purity for use in ex ...
Ortells-Abuye Nativitat N Emergency Service, Hospital de Palamós, Serveis de Salut Integrats Baix Empordà, Palamós, Girona, - - 2014
To demonstrate the equivalence between blood collection methods using direct venous puncture (DVP) and a peripheral venous catheter or cannula (PVC). A cross-sectional study of simple crossover design with within-subject measures carried out between October 2011 and May 2012 at a regional hospital in Spain. 272 patients aged 18 or ...
Fahs Christopher A CA Fitchburg State University, 160 Pearl Street, Fitchburg, MA, 01420, USA, - - 2013
To examine the effects of low-load knee extensor training to fatigue with and without blood flow restriction (BFR) on calf vascular conductance, calf venous compliance, and peripheral arterial stiffness in middle-aged individuals. Eleven men (55 ± 8 years) and five post-menopausal women (57 ± 5 years) completed 6 weeks of unilateral knee extensor training with one limb ...
Chang K K Department of Radiology, Center for Biomedical Imaging, New York University School of Medicine, New York, New York; Division of Biology, Caltech, Pasadena, California; and Department of Radiology, Wayne State University School of Medicine, Detroit, - - 2013
BACKGROUND AND PURPOSE:Cerebrovascular oxygenation changes during respiratory challenges have clinically important implications for brain function, including cerebral autoregulation and the rate of brain metabolism. SWI is sensitive to venous oxygenation level by exploitation of the magnetic susceptibility of deoxygenated blood. We assessed cerebral venous blood oxygenation changes during simple voluntary ...
Thibault Paul - - 2013
Chronic cerebrospinal venous insufficiency (CCSVI) is a condition associated with multiple sclerosis (MS) and manifested by stenoses in the extracranial venous circulation. There is a need for an objective non-invasive assessment of CCSVI that is able to accurately identify the location of stenoses and quantify physiological changes in blood flows ...
Woinarski Nicholas Cz - - 2013
Background: Near-infrared spectroscopy of the thenar eminence (NIRSth) can be used at the bedside to assess tissue oxygenation (StO2), the reperfusion response to ischaemia and the tissue haemoglobin index (THI). Its ability to estimate forearm blood flow (FBF) has not previously been assessed. Objectives: We aimed to test whether short-lived ...
Smith W Zachary - - 2013
The evacuated hemothorax has been poorly described because it varies with time, it has been found to be incoagulable, and its potential effect on the coagulation cascade during autotransfusion is largely unknown. This is a prospective descriptive study of adult patients with traumatic chest injury necessitating tube thoracostomy. Pleural and ...
Schrauben E M - - 2013
BACKGROUND AND PURPOSE:The chronic cerebrospinal venous insufficiency hypothesis raises interest in cerebrospinal venous blood flow imaging, which is more complex and less established than in arteries. For accurate assessment of venous flow in chronic cerebrospinal venous insufficiency diagnosis and research, we must account for physiologic changes in flow patterns. This ...
Hatler Carol - - 2013
To evaluate venous pool technique (VPT) for obtaining neonatal blood samples as compared with the needlestick technique. An experimental design was used with subjects enrolled in two phases: an equivalence phase (N = 10) and a comparison phase (N = 64). In the equivalence phase, subjects weighing 1,500 g or ...
Ivanov Alexey Y - - 2013
Cerebral venous drainage is generally believed to be regulated primarily by hydrodynamic forces. To gain further insight into the regulation of this process, we investigated the response of blood flow velocity and cross-sectional area (CSA) of the internal jugular veins (IJVs) to local hemodynamic shifts. All procedures and assessments were ...
Macgowan Christopher K - - 2013
Altered cerebrovascular blood flow has been proposed as a mechanism for multiple sclerosis (MS). The primary objective of this study was to measure arterial and venous blood flow in adolescent MS patients and healthy controls (HC), in whom confounding factors such as age and lifestyle are less influential. Phase-contrast magnetic ...
Bickler Philip E - - 2013
BACKGROUND:Cerebral oximetry is a noninvasive optical technology that measures frontal cortex blood hemoglobin-oxygen saturation. Commercially available cerebral oximeters have not been evaluated independently. Unlike pulse oximeters, there are currently no Food and Drug Administration standards for performance or accuracy. We tested the hypothesis that cerebral oximeters accurately measure a fixed ...
Crisóstomo Rute Sofia Dos Santos - - 2013
To compare the effect of call-up and reabsorption maneuvers of manual lymphatic drainage on blood flow in femoral vein and great saphenous vein in patients with chronic venous disease and healthy controls. Forty-one subjects participated in this study (mean age: 42.68(15.23)), 23 with chronic venous disease (chronic venous disease group) ...
Rieser Teresa M - - 2013
Arterial and venous blood gases provide useful information regarding pulmonary function as well as acid-base balance. The goal of this article is to discuss the collection of blood gases, common errors in analysis, and what information can be gleaned from a blood gas analysis.
van der Elst Kim C M - - 2013
Invasive aspergillosis and candidemia are important causes of morbidity and mortality in immunocompromised and critically ill patients. The triazoles voriconazole, fluconazole and posaconazole are widely used for the treatment and prophylaxis of these fungal infections. Due to intra- and interindividual patient variability of the pharmacokinetics of the triazoles, therapeutic drug ...
Jang Jinhee - - 2013
Reflux venous signal on the brain and neck time-of-flight magnetic resonance angiography (TOF MRA) is thought to be related to a compressed left brachiocephalic vein. This study is aimed to assess the prevalence of venous reflux flow in internal jugular vein (IJV), sigmoid sinus/transverse sinus (SS/TS), and inferior petrosal sinus ...
Andriamandimby Soa Fy - - 2013
In 2005, there were outbreaks of febrile polyarthritis due to Chikungunya virus (CHIKV) in the Comoros Islands. CHIKV then spread to other islands in the Indian Ocean: La Réunion, Mauritius, Seychelles and Madagascar. These outbreaks revealed the lack of surveillance and preparedness of Madagascar and other countries. Thus, it was ...
Tavakol Kamran K Department of Anesthesiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, - - 2013
Substitution of arterial with venous blood samples to estimate blood gas status is highly preferable due to practical and safety concerns. Numerous studies support the substitution of arterial by venous blood samples, reporting strong correlations between arterial and venous values. This study further investigated the predictive ability of venous blood ...
Winokur Elizabeth J - - 2013
Lack of specific guidelines regarding collection of blood for culture from central venous catheters (CVCs) has led to inconsistencies in policies among hospitals. Currently, no specific professional or regulatory recommendations exist in relation to using, reinfusing, or discarding blood drawn from CVCs before drawing blood for a culture. Repeated wasting ...
Hoogland P V - - 2013
The internal vertebral venous plexus (IVVP) plays a putative role in thermoregulation of the spinal cord. Cold cutaneous venous blood may cool, while warm venous blood from muscles and brown fat areas may warm the spinal cord. The regulating mechanisms for both cooling and warming are still unknown. Warm venous ...
Verwer Eline E - - 2013
PURPOSE: [(18)F]Fluoroazomycin arabinoside (FAZA) is a positron emission tomography (PET) tracer developed to enable identification of hypoxic regions within a tumour. The aims of this study were to determine the optimal kinetic model along with validation of using alternatives to arterial blood sampling for analysing [(18)F]FAZA studies and to assess ...
Lü J - - 2013
Aim: The aim of this paper was to analyze the correlation between preoperative imaging features and intraoperative blood loss and transfusion of meningioma in order to explore the possibility of reasonable blood preparation based on the preoperative images. Methods: The data of 93 adults with meningioma having undergone microsurgical operations ...
Potger Kieron C - - 2013
An important mechanism for postoperative cognitive impairment after cardiac surgery using cardiopulmonary bypass (CPB) is microemboli. One component of the CPB circuit-the cardiotomy-is a major source of gaseous microemboli because it aspirates significant volumes of air with blood from the operative field and intracardiac chambers. Cardiotomies are either integrated within ...
Durandy Yves - - 2013
Vacuum-assisted venous drainage (VAVD) was proposed to optimize venous drainage during bypass through femoral venous cannulation. It is currently used in both adult and pediatric surgery when siphon gravity venous drainage is suboptimal. In pediatric surgery, the major advantages of VAVD are a significant decrease in cardiopulmonary bypass prime volume ...
Farrow H A - - 2013
Long-term, frequent venous access for diagnostic, therapeutic, or research purposes in cats is problematic. Frequent blood sampling over extended periods is necessary for some therapeutic regimes and often required for clinical research in veterinary science. In this paper, we describe the implantation of vascular access ports (VAPs) and assess their ...
Du Joanna Y - - 2013
OBJECTIVE: This study aims to investigate the distribution of progesterone in venous whole blood, venous serum, fingertip capillary blood, and saliva after its topical application in both cream and gel formulations. METHODS: Ten postmenopausal women were randomized to receive 80 mg of progesterone cream or gel applied daily for 14 ...
Vukicevic Marija M Department of Mechanical Engineering, Clemson University, Clemson, South Carolina, - - 2013
We describe an in vitro model of the Fontan circulation with respiration to study subdiaphragmatic venous flow behavior. The venous and arterial connections of a total cavopulmonary connection (TCPC) test section were coupled with a physical lumped parameter (LP) model of the circulation. Intrathoracic and subdiaphragmatic pressure changes associated with ...
Forsberg Ulf - - 2013
During hemodialysis (HD), microemboli develop in the blood circuit of the apparatus. These microemboli can pass through the venous chamber and enter into the patient's circulation. The aim of this study was to investigate whether it is possible to reduce the risk for exposure of microemboli by altering of the ...
Sharma A - - 2013
BACKGROUND AND PURPOSE:Association between developmental venous anomalies is well known, but remains unexplained. Our aim was to study possible hemodynamic differences around developmental venous anomalies with and without cavernous malformations.MATERIALS AND METHODS:In this prospective study approved by the institutional review board, PWI was performed in 24 patients with 25 DVAs ...
Méan Marie - - 2013
In the field of thrombosis and haemostasis, many preanalytical variables influence the results of coagulation assays and measures to limit potential results variations should be taken. To our knowledge, no paper describing the development and maintenance of a haemostasis biobank has been previously published. Our description of the biobank of ...
Pasipoularides Ares - - 2013
In Harvey's Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus of 1628, we see the mechanisms of the Circulation worked out more or less in full from the results of experimental demonstration, virtually complete but for the direct visual evidence of a link between the minute final terminations and ...
Diaz J A - - 2013
Previously, we presented the electrolytic inferior vena cava (IVC) model (EIM) during acute venous thrombosis (VT). Here, we present our evaluation of the EIM for chronic VT time points in order to determine whether this model allows for the study of thrombus resolution. C57BL/6 mice (n=191) were utilised. In this ...
Instiaty Insti - - 2013
Oseltamivir and oseltamivir carboxylate concentrations were measured in venous plasma, venous blood, and capillary blood taken simultaneously from 24 healthy volunteers. Median (range) venous blood to plasma ratios were 1.42 (0.920-1.97) for oseltamivir and 0.673 (0.564-0.814) for oseltamivir carboxylate. Capillary blood/venous plasma ratios were 1.32 (0.737-3.16) for oseltamivir and 0.685 ...
Schmid Sophie - - 2013
In this study, a new arterial spin labeling (ASL) method with spatially nonselective labeling is introduced, based on the acceleration of flowing spins, which is able to image brain perfusion with minimal contamination from venous signal. This method is termed acceleration-selective ASL (AccASL) and resembles velocity-selective ASL (VSASL), with the ...
Fulker David - - 2013
The vascular access used in hemodialysis can suffer from numerous complications, which may lead to failure of the access, patient morbidity, and significant costs. The flow field in the region of the venous needle may be a source of damaging hemodynamics and hence adverse effects on the fistula. In this ...
Stein Paul D - - 2013
The effects of graduated compression stockings (GCSs) on venous blood velocity were measured in 26 hospitalized medical patients while supine at rest. Peak blood velocity in the right femoral vein was 21.6 cm/s without GCS and 23.0 cm/s with GCS [not significant (NS)]. Peak blood velocity in the right popliteal ...
Wilson Mark H MH The Traumatic Brain Injury Centre, St Mary's Hospital, Imperial College, London, W1 2NY United Kingdom. - - 2013
As inspired oxygen availability falls with ascent to altitude, some individuals develop high-altitude headache (HAH). We postulated that HAH results when hypoxia-associated increases in cerebral blood flow occur in the context of restricted venous drainage, and is worsened when cerebral compliance is reduced. We explored this hypothesis in 3 studies. ...
Brandt Moritz - - 2013
BACKGROUND: Interaction between vascular wall abnormalities, inflammatory leukocytes, platelets, coagulation factors and hemorheology in the pathogenesis of deep vein thrombosis (DVT) is incompletely understood, requiring well defined animal models of human disease. METHODS AND RESULTS: We subjected male C57BL/6 mice to ligation of the inferior vena cava (IVC) as a ...
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