Search Results
Results 1 - 50 of 1132
1 2 3 4 5 6 7 8 9 10 >
Osterman Jessica L JL Emergency Medicine, Keck School of Medicine, University of Southern California, 1200 North State Street, Room 1011, Los Angeles, CA 90033, USA. Electronic address: - - 2014
Blood product transfusions are an essential component of the practice of emergency medicine. From acute traumatic hemorrhage to chronic blood loss necessitating transfusion for symptomatic anemia, familiarity with individual blood products and their indications for transfusion is an essential tool for every emergency physician (EP). Although the focus of this ...
Vos Michel J MJ Department of Clinical Chemistry, Isala Hospital, Vlinder 1 kamer V1.2.606 (103) Dr. Van Heesweg 2, 8025 AB Zwolle, Postbus 10400, 8000 GK, Zwolle, Netherlands, - - 2014
A newborn boy was referred to our hospital because of hemolytic anemia and severe hyperbilirubinemia. Extensive investigations aimed at determining the cause of hemolysis was initiated at the time of admission and 3 months after blood transfusion. Notably, no intrinsic erythrocyte abnormalities could be detected. The only possible cause explaining the ...
Hrušák OndÅ™ej - - 2014
Flow cytometry is a valuable part in the routine diagnostics of acute leukemia (AL). Although internationally recognized definitions of main AL subsets are available, there is currently no consensus format for the short summary of clinical flow cytometry reports. Since clinical reports are too long for most database purposes, there ...
Camacho María M Veterinary Faculty, University of Las Palmas de Gran Canaria, Trasmontana s/n, 35416 Arucas, Las Palmas, Spain; Toxicology Unit, Department of Clinical Sciences, University of Las Palmas de Gran Canaria, Plaza Dr. Pasteur s/n, 35016 Las Palmas de Gran Canaria, - - 2014
We monitored the levels of 57 organic pollutants and 11 elements in the blood of 61 live stranded loggerhead sea turtles at the beginning and end of the rehabilitation period with the goal of evaluating whether recuperation of normal physiological conditions has an influence on the circulating levels of these ...
Saucy Francois F Thoracic and Vascular Department, University Hospital, Lausanne - - - 2014
The intraoperative quality assessment of the arteriovenous fistula for hemodialysis is an essential process to limit early failure due to technical problems or inadequate vascular quality. This step is not clearly defined in the literature with no recommendations. We selected published articles related to the topic of intraoperative quality control ...
Ehsanpour Maryam M Young Researchers Club, Islamic Azad University, Bandar Abbas Branch, PO Box 79159-1311, Bandar Abbas, - - 2014
This study was conducted to determine trace metal concentrations (Cd, Cu, Zn, Pb and Hg) in blood and three egg fractions from Eretmochelys imbricata nesting on Qeshm Island in Iran. The results showed detectable levels of all analytes in all fractions. Pb and Hg were detectable in the blood and ...
Charland Trisha - - 2013
The purpose of this study was to compare the ability of MTA (Dentsply Maillefer, Tulsa, OK) and EndoSequence Root Repair Material (ESRRM; Brasseler USA, Savannah, GA) to set in the presence of human blood and minimal essential media. A model was created using polymethyl methacrylate blocks each prepared with 10 ...
Sojka Daniel - - 2013
Blood-protein digestion is a key physiological process providing essential nutrients for ticks and is a prerequisite for the transmission of tick-borne pathogens. Recently, substantial progress has been made in determining the proteolytic machinery in tick gut tissue, which is based on a dynamic multienzyme network capable of processing a vast ...
Coutinho Maria - - 2012
Infantile pyknocytosis (IP) is an under-recognized hematological entity of newborns that can cause a severe neonatal hemolytic anemia. A careful, prompt, and accurate peripheral blood smear examination is essential to establish the diagnosis. Here we describe the clinical features and histological parameters of 1 case of IP. Spontaneous resolution usually ...
Yoshiba Satoko - - 2012
Unidirectional fluid flow plays an essential role in the breaking of left-right (L-R) symmetry in mouse embryos, but it has remained unclear how the flow is sensed by the embryo. We report that the Ca(2+) channel Polycystin-2 (Pkd2) is required specifically in the perinodal crown cells for sensing the nodal ...
Campbell Alastair V - - 2011
Is the recommendation of the WHO, endorsed by all member states, that all blood donations should be voluntary and non-compensated ethically coherent and realizable in practice? In a recent paper, Farrugia et al have argued for a plurality of both compensated and non-compensated systems, claiming that, from both an ethical and ...
Onisto Maurizio - - 2011
Storage of human biological samples and personal data associated with them are organised in Biobanks. In spite of expectation given by biobanks in medicine, their management involved some ethical questions such as, for example, the need for policies to regulate economic interests, potential commercial uses of data (including patents), private ...
Ter Laan Mark - - 2011
Introduction Cerebral blood flow (CBF) is regulated by several mechanisms. Neurogenic control has been a matter of debate, even though several publications reported the effects of changes in sympathetic tone on CBF. Transcutaneous electrical nerve stimulation and spinal-cord stimulation have been shown to influence peripheral and cerebral blood flow through ...
Maskell Peter D - - 2011
Four deaths related to the drug 4-methylmethcathinone (mephedrone) are reported. Qualitative and quantitative analysis of mephedrone was performed by high-performance liquid chromatography-diode-array detection. Of the four deaths, one was attributed to the adverse effects of mephedrone, with cardiac fibrosis and atherosclerotic coronary artery disease as a contributing factor. A 49-year-old ...
Hever Timea - - 2010
Artificial femoral arterio-venous (AV) shunts are widely used in rodent models for studying shunt maturation and to optimize various surgical techniques. However, little is known about complex circulatory, microcirculatory, and hemorheological effects of end-to-side saphenous AV shunts. We aimed to study these parameters in mature AV shunts. Studying these questions ...
Rauchfuss Falk - - 2010
Extrahepatic portal vein thrombosis, not associated with cirrhosis or tumours, is the second most frequent cause of portal hypertension worldwide. Especially in children, anatomic mesenterico-portal interposition (REX-shunt) has become an established treatment. The changes in hepatic microcirculation after reperfusion of the shunt have not been investigated so far. This study ...
Morandi Federica - - 2010
We describe the scintigraphic patterns observed in 14 patients with confirmed multiple portosystemic shunts imaged via transplenic portal scintigraphy. Parameters evaluated included presence of multiple anomalous vessels, presence of hepatofugal flow caudal to spleen, and/or to cranial margin of the kidneys, slow absorption resulting in longer spleen to heart transit ...
Bosch Jaume - - 2010
Portal hypertension is the main cause of complications in patients with chronic liver disease. Over the past 25 years, progress in the understanding of the pathophysiology of portal hypertension was followed by the introduction of an effective pharmacological therapy, consisting mainly of treatments aimed at correcting the increased splanchnic blood ...
Kogita Sachiyo - - 2010
To retrospectively investigate enhancement patterns of hepatocellular carcinoma (HCC) and dysplastic nodule (DN) in the hepatobiliary phase of gadolinium-ethoxybenzyl-diethylenetriamine (Gd-EOB-DTPA)-enhanced MRI in relation to histological grading and portal blood flow. Sixty-nine consecutive patients with 83 histologically proven HCCs and DNs were studied. To assess Gd-EOB-DTPA uptake, we calculated the EOB ...
Kasuga Akiyoshi - - 2010
Long-term hemodynamic effects and clinical outcomes after balloon-occluded retrograde transvenous obliteration (B-RTO) remain unclear. The purpose of this study was to evaluate long-term clinical results and effects on portal hemodynamics after B-RTO for the treatment of gastric varices with spontaneous gastrorenal shunt. A total of 21 patients with cirrhosis and ...
Spitzer Austin L - - 2010
We hypothesized that operative variables might predict survival following liver transplantation. We examined perioperative variables from 469 liver transplants carried out at the University of Washington during 2003-2006. Logistic regression determined the variables' contributions to survival at 30, 90 and 365 days. Portal vein blood flow (>1 l/min) was significant ...
Jang Yun-Jin - - 2010
OBJECTIVE: The purpose of this study was to determine the range of portal blood flow velocity at Doppler sonography of recipients without major complications after right-lobe living donor liver transplantation and to explore factors affecting portal blood flow velocity. MATERIALS AND METHODS: Seventy-one patients (59 men, 12 women; mean age, ...
Vidal Claudio Henrique Fernandes - - 2010
The mechanism for development of schistosomal myelitis has not yet been completely understood. Few publications have tried to establish a link between the general clinical presentation of the illness and its neurological manifestations. OBJECTIVE: To evaluated the portal blood flow in patients with schistosomal myelitis and controls. METHOD: Forty-three individuals ...
Sartor Raquel - - 2010
Doppler ultrasonography is an important tool for evaluating hepatic portal hemodynamics. However, no study in dogs of different body weights, in the range encountered in routine clinical veterinary practice, has been reported. It can be difficult to obtain an ideal insonation angle when evaluating the main portal vein, so evaluation ...
Omata Jiro - - 2009
BACKGROUND: Absence of enteral nutrition (EN) reduces hepatic mononuclear cell (MNC) numbers and impairs their functions. However, enteral refeeding (ER) for as little as 12 hours following parenteral nutrition (PN) rapidly restores hepatic MNC numbers. We hypothesized that changes in small intestine and portal vein blood flows related to feeding ...
Miyazaki Shohei - - 2009
Our purpose in this study was to investigate the optimal position for the quantification of hepatic perfusion by using a dual-input, single-compartment model and dynamic contrast-enhanced computed tomography (DCE-CT) in rats. The DCE-CT studies were performed with the animals in the supine and prone position, with an interval of 1 ...
González-Pinto I M - - 2009
Renoportal anastomosis has been used as the primary portal revascularization technique in grade 4 portal thrombosis, but never after posttransplant portal thrombosis. A cirrhotic patient with hepatocellular carcinoma and partial portal thrombosis of two-thirds of the lumen was transplanted. The thrombus was removed and good portal flow obtained upon reperfusion ...
Mogilner Jorge - - 2009
AIM: Recent clinical experience suggests that minimal access portoenterostomy (the Kasai procedure) for biliary atresia leads to transplantation sooner, compared to the traditional open approach. It should be emphasized that elevated intra-abdominal pressure (IAP) may reduce hepatic and portal blood flow and thus may cause histologic liver damage. The aim ...
Sharma D C - - 2009
Silver is ingested in India in the form of varak, Ayurvedic bhasm and water contained in silver utensils, but nobody knows their effects. We have examined the effect of interaction of silver ingested in the form of varak (leaf), bhasm (ash) and water (colloidal solution) on some essential elements (Na, ...
Hooda S - - 2009
An improved technique to study kinetics and quantitative absorption of nutrients in pigs is described. Three female pigs (35 kg of BW) were surgically modified with catheters in the hepatic portal vein and carotid artery and an ultrasonic flow probe around the portal vein. Catheter placement and patency was secured ...
Jung Wooseok W Microsystems and BioMEMS Laboratory, Department of Electrical and Computer Engineering, University of Cincinnati, Cincinnati, OH, - - 2009
An innovative sensing tube with an integrated piezoelectric flow sensor to measure flow rate in portal vein during liver transplantation has been developed and characterized in this work. This smart tube aims to measure flow rates in the portal vein in a real-time continuous format with high reliability. The PVDF-TrFE ...
Eklou-Lawson Mamy - - 2009
The highest ammonia concentration in the body is found in the colon lumen and although there is evidence that this metabolite can be absorbed through the colonic epithelium, there is little information on the capacity of the colonic mucosa to transfer and metabolize this compound. In the present study, we ...
Jandacek Ronald J - - 2009
The route of absorption of ingested compounds is a determinant of their distribution and metabolism. Portal vein absorption results in direct transport to the liver, where metabolism may take place before extrahepatic delivery. Lymphatic absorption can result in delivery of parent compound to nonhepatic tissues. Understanding the fate of an ...
Li Wen-Gang - - 2008
AIM: To explore the influence of portal vein hemo-dynamic changes after portal venous arterialization (PVA) on peribiliary vascular plexus (PVP) morphological structure and hepatic pathology, and to establish a theoretical basis for the clinical application of PVA. METHODS: Sprague-Dawley rats were randomly divided into control and PVA groups. After PVA, ...
Pereira Vitor M - - 2008
BACKGROUND AND PURPOSE: Although it is generally accepted that developmental venous anomalies (DVAs) are benign vascular malformations, over the past years, we have seen patients with symptomatic DVAs. Therefore, we performed a retrospective study and a literature study to review how, when, and why DVAs can become clinically significant. METHODS: ...
Maldjian Pierre D - - 2008
We present 2 cases demonstrating focal increased activity in the liver on 18F-fluorodeoxyglucose positron emission tomography scans resulting from central venous obstruction and increased blood flow to select regions of the liver via collateral veins. Collateral venous pathways from anterior chest wall veins to the portal veins can form via ...
Carvalho Darcy L M - - 2008
We studied 27 patients who had mansonic schistosomiasis and portal hypertension with previous episodes of digestive bleeding from esophageal varices. According to the routine of the Liver and Portal Hypertension Unit of the Faculty of Medical Sciences-Santa Casa de S?o Paulo, these patients underwent surgical treatment that consisted of azygoportal ...
Nasr Ahmed - - 2009
BACKGROUND: This study was conducted to evaluate changes in portal blood flow and liver functions among women using Implanon for 2 years. STUDY DESIGN: Fifty healthy Implanon users were enrolled in this longitudinal study and followed up for 24 months. Portal blood flow, assessed by color Doppler; prothrombin time and ...
Clemmesen Jens-Otto - - 2008
To investigate if sildenafil increases splanchnic blood flow and changes the hepatic venous pressure gradient (HVPG) in patients with cirrhosis. Phosphodiesterase type-5 inhibitors are valuable in the treatment of erectile dysfunction and pulmonary hypertension in patients with end-stage liver disease. However, the effect of phosphodiesterase type-5 inhibitors on splanchnic blood ...
Arbeille P - - 2008
We quantified the impact of a 60-day head-down tilt bed rest (HDBR) with countermeasures on the arterial response to supine lower body negative pressure (LBNP). Twenty-four women [8 control (Con), 8 exercise + LBNP (Ex-LBNP), and 8 nutrition (Nut) subjects] were studied during LBNP (0 to -45 mmHg) before (pre) ...
Wienecke T - - 2008
Arteriovenous anastomoses (AVAs) may open up during migraine attacks. In studies with anaesthetized and bilaterally vagosympatectomized pigs, triptans reduce AVA blood flow and increase the arteriovenous O2 difference (AVDO2). To investigate whether subcutaneous sumatriptan 6 mg could induce changes in the AVDO2, we measured the AVDO2 in the external jugular ...
Döhler Klaus D - - 2008
Bleeding of oesophageal varices and hepatorenal syndrome are most dramatic complications in gastroenterology. They develop in consequence of progressively increasing blood flow entering the vasodilated splanchnic bed and the portal vein where blood flow meets intrahepatic resistance. Porto-systemic collateral veins are formed to bypass the cirrhotic liver. Intravascular pressure is ...
Colle Isabelle - - 2008
Portal hypertension (PHT) is associated with a hyperdynamic state characterized by a high cardiac output, increased total blood volume, and a decreased splanchnic vascular resistance. This splanchnic vasodilation is a result of an important increase in local and systemic vasodilators (nitric oxide, carbon monoxide, prostacyclin, endocannabinoids, and so on), the ...
Reynaert Hendrik - - 2008
Portal hypertension, a major complication of cirrhosis, is caused by both increased portal blood flow and augmented intrahepatic vascular resistance. Even though the latter is primarily caused by anatomical changes, it has become clear that dynamic factors contribute to the increased hepatic vascular resistance. The hepatic sinusoid is the narrowest ...
Erdogmus Besir - - 2008
Paralleling the rise in the incidence of obesity and diabetes worldwide, nonalcoholic fatty liver disease (NAFLD) is being increasingly recognized as one of the major causes of chronic liver disease. Doppler sonography is used as a diagnostic method in the non-invasive assessment of the hemodynamics of hepatic vascular flow in ...
Wong Camilla L - - 2008
CONTEXT: Abdominal paracenteses are performed in patients with ascites, most commonly to assess for infection or portal hypertension and to manage refractory ascites. OBJECTIVES: To systematically review evidence for paracentesis methods that may decrease risk of adverse events or improve diagnostic yield and to determine the accuracy of ascitic fluid ...
Ogasawara Takashi - - 2008
BACKGROUND/AIMS: Dai-kenchu-to (DKT) is known as an herbal medicine used for postoperative ileus. However, no report exists about the effect of DKT on portal blood flow. The aim of this study is to clarify the influence of DKT on portal blood flow. METHODOLOGY: To healthy volunteers (Healthy; n = 6), ...
Kaplan Mark S - - 2008
We report 4 cases of intravascular venous uptake of contrast material during fluoroscopically guided cervical interlaminar epidural steroid injection at the C6-7 level. The blood vessel probably involved is the posterior internal vertebral venous plexus, which drains the interlaminar space and returns blood to the right atrium through the paired ...
Nagata Shigeyuki - - 2008
To date, the need for spontaneous portosystemic shunt division during adult-to-adult living donor liver transplantation (LDLT) remains unknown. This study reports 2 patients with large portosystemic shunts who required LDLT. The first patient was a 40-year-old male with liver cirrhosis due to hepatitis C. The angiogram showed splenosystemic shunts with ...
Balci Ali - - 2008
PURPOSE: To investigate the effects of various degrees of diffuse fatty infiltration of the liver on portal vein blood flow with Doppler sonography. METHODS: One hundred forty subjects were examined with color and spectral Doppler sonography. The subjects were divided into 4 groups of 35 subjects each according to the ...
1 2 3 4 5 6 7 8 9 10 >