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Hemodialyzers

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https://www.readbyqxmd.com/read/27905009/increased-serum-al-levels-in-hemodialysis-patients-kept-enhanced-during-a-2-year-prospective-study
#1
Maria L Reina de la Torre, Herminia Lopez García de la Serrana, Loreto Martí Del Moral, Magdalena Palomares Bayo, Miguel Navarro-Alarcón
The regulation of mineral homeostasis is altered in hemodialysis patients with renal insufficiency, producing increased risk for secondary diseases like cardiovascular ones. We hypothesized that risen serum aluminum (Al) concentration in hemodialysis patients kept enhanced during a 2-year longitudinal study is associated with enhanced cardiovascular risk and influenced by medical treatments. This study reports the prospective monitoring of serum Al levels in six-monthly samplings over 2 years in 116 hemodialysis patients and a control group of 50 healthy adults...
November 30, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27886156/conformity-scores-differentiate-older-hemodialyzed-patients-and-patients-with-continuous-peritoneal-dialysis
#2
Zbigniew Nowak, Krzysztof Laudanski
BACKGROUND Conformity is a psychological variable related to the propensity of an individual to match his or her behavior and opinion to the perceived social and cultural norm, even if these do not represent the true beliefs of the person. The aim of the present study was to investigate whether the psychological variable of conformity is different in two distinct modes of renal replacement therapy (RRT) in end-stage renal disease (ESRD). MATERIAL AND METHODS A total of 56 hemodialyzed patients (HD group), 45 continuous ambulatory peritoneal dialysis patients (CAPD group) and 62 healthy volunteers (CONTR group) were enrolled in the study...
November 25, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27875812/hemodialysis-decreases-the-etiologically-related-early-vascular-aging-observed-in-end-stage-renal-disease-a-5-year-follow-up-study
#3
Daniel Bia, Cintia Galli, Yanina Zócalo, Rodolfo Valtuille, Sandra Wray, Ricardo Armentano, Edmundo Cabrera-Fischer
AIMS: To analyze the early vascular aging (EVA) in end-stage renal disease (ESRD) patients, attempting to determine a potential association between EVA and the etiology of ESRD, and to investigate the association of hemodialysis and EVA in ESRD patients during a 5-year follow-up period. METHODS: Carotid-femoral pulse wave velocity (cfPWV) was obtained in 151 chronically hemodialyzed patients (CHP) and 283 control subjects, and in 25 CHP, who were followed-up after a 5-year lapse...
November 23, 2016: Blood Purification
https://www.readbyqxmd.com/read/27834449/finite-element-modeling-of-time-dependent-sodium-exchange-across-the-hollow-fiber-of-a-hemodialyzer-by-coupling-with-a-blood-pool-model
#4
Enrico Ravagli, Elena Grandi, Paolo Rovatti, Stefano Severi
INTRODUCTION: Hollow fiber models describe the exchange of solutes between blood and dialysate across the membrane of a single fiber of the hemodialysis filter (hemodialyzer). This work aims to develop a new approach to simulate the solute exchange in a hollow fiber in a dynamic and realistic way. Sodium was chosen as our solute of interest due to its importance in hemodialysis as an osmotic regulator. METHODS: A 2-dimensional (2D) hollow fiber model based on the finite element method (FEM) is coupled to a simple blood pool model to dynamically update the concentration of the solute entering the dialyzer...
November 11, 2016: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/27786416/does-guidewire-exchange-influence-infection-rate-related-to-catheters-used-for-vascular-access-in-children-on-chronic-hemodialysis
#5
Rina R Rus, Nina Battelino, Rafael Ponikvar, Vladimir Premru, Gregor Novljan
A central venous catheter (CVC) can either be inserted "de novo" or placed by guidewire exchange (GWE). From September 1998 to September 2015, 32 children (19 boys, 13 girls) were hemodialyzed in our unit by using a CVC. The mean age at CVC insertion was 12.6 ± 0.5 years. A total of 121 uncuffed catheters were placed, either "de novo" or by GWE in 64 (52.9%) and 57 (47.1%) cases, respectively. The most frequent cause for line revision was catheter dysfunction in 40/121 (33.1%) patients. The overall incidence of bacteremia was 1...
October 27, 2016: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/27752002/hypertension-in-hemodialyzed-children
#6
Shatha Hussain Ali, Salman Hussain Assi, Fadhil S Hussien
Hypertension (HTN) is one of the most common sequelae of chronic kidney disease (CKD) in children. Dialysis-related HTN is predominantly caused by chronic volume overload, and as such the blood pressure (BP) can be reduced and/or brought down to normal in a sizable number of patients with improved salt and fluid balance. This study was conducted to assess the prevalence of HTN among children on hemodialysis (HD) and to evaluate the correlation of HTN with some demographic data. This is a prospective study performed on forty pediatric patients with CKD receiving maintenance HD in three centers in Baghdad...
September 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27751998/a-study-of-the-main-determinants-of-sexual-dysfunction-in-women-aged-15-45-years-on-chronic-hemodialysis
#7
Reza Hekmat, Faeze Maghsudloo, Mahmood Mohebi, Sayed Abdolrahim Rezaee, Rosita Vakili, Hoshang Rafat Panah
Sexual dysfunction (SD) is a common problem in patients with the end-stage renal disease. In contrast to SD in males, relatively little work has been performed in the field of SD in females. In this study, we tried to identify the main determinants of SD in women aged 15-45year-old on chronic hemodialysis (HD). One hundred-forty female patients aged 15-45-year-old on chronic HD were studied in the winter of the year 2013. Healthy relatives of the patients were chosen as controls and matched for age, level of education, marital status, and income...
September 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27709305/analysis-of-the-safety-evaluation-for-premarketing-clinical-trials-of-hemodialyzer-and-of-postmarketing-safety-reports-of-hemodialyzer-in-japan-and-the-us-insights-into-the-construction-of-a-sophisticated-premarketing-evaluation
#8
Masami Saito, Kiyotaka Iwasaki
Our aim was to conduct a scoping review of the regulations for hemodialyzers in the safety evaluation in Japan and the United States, and to evaluate the criteria for premarketing clinical trials and postmarketing safety reports to inform the development of a sophisticated premarketing evaluation in Japan. Regulations for approval of hemodialyzers were identified from the databases of the Ministry of Health, Labor and Welfare in Japan and the Federal Drug Agency (FDA) in the United States (US). The criteria for premarket clinical trials and postmarketing safety reports were evaluated for both countries...
October 5, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27667446/oxidized-ldl-cholesterol-statin-use-and-morbidity-mortality-in-patients-receiving-maintenance-hemodialysis
#9
Sandra Wagner, Mugurel Apetrii, Ziad A Massy, Kleber E Marcus, Graciela E Delgado, Scharnagel Hubert, März Winfried, Marie Metzger, Patrick Rossignol, Alan Jardine, Hallvard Holdaas, Bengt Fellström, Roland Schmieder, Bénédicte Stengel, Faiez Zannad
Statin treatment reduces the risk of cardiovascular mortality in the general population, but it has little or no benefit in hemodialyzed patients (HD). This may reflect different underlying pathophysiology of CVD in patients treated with HD, maybe involving the oxidative stress. Our aim was to assess the association of oxidized LDL (oxLDL), determinated by Mercodia oxLDL ELISA Kit, with major adverse cardiac events (MACE) and all-cause mortality in HD patients based on the AURORA trial (rosuvastatin vs placebo), and patients not on HD from the LURIC study...
September 25, 2016: Free Radical Research
https://www.readbyqxmd.com/read/27632986/influence-of-hemodialysis-on-regadenoson-clearance-in-an-in-vitro-hemodialysis-model
#10
Katherine N Gharibian, Venkatesh L Murthy, Bruce A Mueller
BACKGROUND: Regadenoson is a novel pharmacological stress agent whose disposition during hemodialysis is not known. The purpose of this study was to determine the clearance of regadenoson under varying dialytic conditions using an in vitro hemodialysis model. METHODS AND RESULTS: Whole human blood was used to analyze the effect of hemodialysis on the clearance of regadenoson. Regadenoson transmembrane clearance (CLD) was assessed for both a standard permeability and a high permeability polysulfone hemodialyzer with blood/dialysate flow rates of 300/600 and 400/800 mL/min...
September 15, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27629729/the-content-of-reticulocyte-hemoglobin-and-serum-concentration-of-the-soluble-transferrin-receptor-for-diagnostics-of-anemia-in-chronically-hemodialyzed-patients
#11
Teresa Kurzawa, Aleksander Owczarek, Joanna K Strzelczyk, Karolina Gołąbek, Andrzej Wiczkowski
BACKGROUND: Chronic renal disease constitutes a serious worldwide clinical problem. An important issue arising early during the treatment of renal failure is anemia. Patients in the end-stage of renal disease chronically treated with hemodialysis frequently suffer from anemia with iron deficiency. OBJECTIVES: The aim of the study was to evaluate the usefulness of determining the reticulocyte hemoglobin content and serum concentration of soluble transferrin receptor in the detection of anemia caused by iron deficiency in comparison with the classic markers of iron circulation in serum in chronic dialysis patients with ESRD...
May 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27605542/the-survival-benefit-of-fistula-first-catheter-last-in-hemodialysis-is-primarily-due-to-patient-factors
#12
Robert S Brown, Bhanu K Patibandla, Alexander S Goldfarb-Rumyantzev
Patients needing hemodialysis are advised to have arteriovenous fistulas rather than catheters because of significantly lower mortality rates. However, disparities in fistula placement raise the possibility that patient factors have a role in this apparent mortality benefit. We derived a cohort of 115,425 patients on incident hemodialysis ≥67 years old from the US Renal Data System with linked Medicare claims to identify the first predialysis vascular access placed. We compared mortality outcomes in patients initiating hemodialysis with a fistula placed first, a catheter after a fistula placed first failed, or a catheter placed first (n=90,517; reference group)...
September 7, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27566059/budget-impact-of-secondary-hyperparathyroidism-treatment-in-chronic-kidney-disease-in-an-ecuadorian-social-security-hospital
#13
Luis Manjarres, Pilar Sanchez, María C Cabezas, Marco Fornasini, Valeria Freire, Adelin Albert
BACKGROUND: Chronic kidney disease (CKD) is a disorder with high morbidity and mortality worldwide whose complications generate multiple costs. In Ecuador, only a few healthcare institutions have implemented management protocols aimed to reduce costs and to improve the quality of life of patients. The aim of this study is to evaluate the short-term (1-year) and long-term (5-year) costs and savings in the management of secondary hyperparathyroidism (SHPT) of hemodialyzed CKD patients by comparing calcitriol and paricalcitol in a large social security hospital in Quito, Ecuador...
2016: BMC Health Services Research
https://www.readbyqxmd.com/read/27522099/analytical-and-clinical-validation-of-the-new-abbot-architect-25-oh-d-assay-fit-for-purpose
#14
Etienne Cavalier, Pierre Lukas, Anne-Catherine Bekaert, Agnès Carlisi, Caroline Le Goff, Pierre Delanaye, Jean-Claude Souberbielle
BACKGROUND: We provide a clinical and analytical evaluation of the reformulated version of the Abbott Architect 25-hydroxyvitamin D assay. We compared this assay with three commercial automated immunoassays and against a VDSP-traceable liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) in six different populations. We also supplemented 40 healthy volunteers with either 600,000 IU of vitamin D2 or 100,000 of vitamin D3 to evaluate the performance of the immunoassays vs...
August 13, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27506154/mycotic-aneurysm-of-the-abdominal-aorta-complicated-with-iliopsoas-abscess-and-infectious-spondylodiscitis-in-a-long-term-hemodialyzed-patient-a-rare-but-serious-complication-of-staphylococcus-aureus-bacteremia
#15
Ryo Koda, Hirofumi Watanabe, Noriaki Iino
No abstract text is available yet for this article.
August 10, 2016: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/27501003/a-prospective-multicenter-randomized-controlled-study-on-interleukin-6-removal-and-induction-by-a-new-hemodialyzer-with-improved-biocompatibility-in-hemodialysis-patients-a-pilot-study
#16
Takatoshi Kakuta, Hirotaka Komaba, Nobuyoshi Takagi, Yuichiro Takahashi, Hajime Suzuki, Toru Hyodo, Mikako Nagaoka, Reika Tanaka, Soichiro Iwao, Mari Ishida, Hiroyuki Kobayashi, Akira Saito, Masafumi Fukagawa
We compared interleukin-6 (IL-6) removal and induction between conventional polysulfone (Con) and TORAYLIGHT NV (NV) dialyzers in hemodialysis patients. Twenty patients on Con with high IL-6 concentrations (2.7-8.5 pg/mL) were randomized to Con or NV group. Dialyzer performance was determined in NV group while patients were on Con and after being switched onto NV. Erythropoiesis-stimulating agent (ESA) response index (ERI) was assessed every 4 months for one year. IL-6 clearance was comparable between Con and NV...
August 8, 2016: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/27415637/necrotizing-thrombophlebitis-secondary-to-mycobacterium-chelonae-in-a-hemodialyzed-patient
#17
Lidia Maroñas-Jiménez, Sara Burillo-Martínez, Enrique Morales, Maria Concepción Garrido-Ruiz, Jose Luis Rodríguez-Peralto
No abstract text is available yet for this article.
July 12, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27355847/adrenal-metastasis-of-a-poorly-differentiated-adenocarcinoma-mimicking-a-pheochromocytoma-on-18f-fdopa-pet-ct
#18
Céline Heimburger, Gerlinde Averous, Emmanuelle Charlin, Hervé Lang, Jean-Emmanuel Kurtz, Alessio Imperiale
We report the surprising intense uptake of F-FDOPA in a right adrenal metastasis of a poorly differentiated metastatic adenocarcinoma of unknown primary mimicking a pheochromocytoma in a hemodialyzed patient with the typical Menard's triad and increased serum catecholamines. Our observation emphasizes that F-FDOPA is not a specific radiotracer for pheochromocytoma and paraganglioma investigation, although it is currently and successfully used in this clinical setting. Moreover, we underline that kidney failure may be responsible for abnormally high serum catecholamines values even in subjects without pheochromocytoma, leading to erroneous diagnostic conclusions particularly in patients with adrenal masses...
September 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27352068/hemodialysis-with-high-cut-off-hemodialyzers-in-patients-with-multi-drug-resistant-gram-negative-sepsis-and-acute-kidney-injury-a-retrospective-case-control-study
#19
Cosimo Chelazzi, Gianluca Villa, Maria Grazia D'Alfonso, Paola Mancinelli, Guglielmo Consales, Margherita Berardi, Angelo Raffaele De Gaudio, Stefano Romagnoli
BACKGROUND: Hemodialysis with high cut-off continuous veno-venous hemodialyzer (HCO-CVVHD) removes mediators of organ dysfunction during sepsis. This study assessed the clinical effects of HCO-CVVHD as compared to high-flux (HF) membranes during gram-negative sepsis. METHODS: Intensive care unit (ICU), septic patients treated with HCO-CVVHD or HF-CVVHDF for AKI were retrospectively observed (January 2013-December 2014). Mechanical ventilation, vasopressors' requirements, ICU length of stay (LOS) and ICU in-hospital mortality were compared between groups...
2016: Blood Purification
https://www.readbyqxmd.com/read/27349711/rapamycin-safeguards-lymphocytes-from-dna-damage-accumulation-in-vivo
#20
Amel Chebel, Régine Catallo, Céline Mabon, Emmanuel Bachy, Thomas Wenner, Gilles Salles, Claire Pouteil-Noble, Martine Ffrench
Several studies reported the benefits of switching from anticalcineurins to mTOR inhibitors to avoid cancer occurrence after organ transplantation. The purpose of our study was to determine in vivo biological markers to explain these benefits. Cellular changes related to cellular senescence and DNA damage were analyzed in peripheral blood lymphocytes. Thirty-five kidney transplanted patients receiving anticalcineurins were investigated: 17 patients were proposed to switch to rapamycin and 18 patients with similar age and transplantation duration, continued anticalcineurins...
September 2016: European Journal of Cell Biology
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