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https://www.readbyqxmd.com/read/28729382/recommended-clinical-trial-end-points-for-dialysis-catheters
#1
Michael Allon, Deborah J Brouwer-Maier, Kenneth Abreo, Kevin M Baskin, Kay Bregel, Deepa H Chand, Andrea M Easom, Leonard Mermel, Michele H Mokrzycki, Priti R Patel, Prabir Roy-Chaudhury, Surendra Shenoy, Rudolph P Valentini, Haimanot Wasse
Central venous catheters are used frequently in patients on hemodialysis as a bridge to a permanent vascular access. They are prone to frequent complications, including catheter-related bloodstream infection, catheter dysfunction, and central vein obstruction. There is a compelling need to develop new drugs or devices to prevent central venous catheter complications. We convened a multidisciplinary panel of experts to propose standardized definitions of catheter end points to guide the design of future clinical trials seeking approval from the Food and Drug Administration...
July 20, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28725318/detection-of-apolipoprotein-e-gene-polymorphism-and-blood-lipid-level-in-hemodialysis-patients
#2
Yuxin Wang, Ning Wang, Yuanshan Lu, Qing Yu, Lina Zhou, Qinjun Xu
BACKGROUND: The aim was to investigate the clinical characteristics of lipid metabolism and the effect of apolipoprotein E (ApoE) gene polymorphism on lipid metabolism in hemodialysis patients. METHODS: The serum levels of total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDLC), low-density lipoprotein cholesterol (LDLC), ApoA1, ApoB, ApoE and lipoprotein Lp(a) were detected by polymerase chain reaction-restriction fragment length (PCR-RFLP)...
August 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28711061/relation-between-cidnp-formed-upon-geminate-and-bulk-recombination-of-radical-pairs
#3
Denis V Sosnovsky, Olga B Morozova, Alexandra V Yurkovskaya, Konstantin L Ivanov
A theoretical approach to time-resolved Chemically Induced Dynamic Nuclear Polarization (CIDNP) is proposed, which allows one to obtain the general relation between polarization formed upon recombination of geminate spin-correlated radical pairs, the so-called G-pairs, and upon recombination of radical pairs formed by encounters of free radicals in solution, the so-called F-pairs. This relation is described by a universal parameter denoted as γ. In this work, the γ value is computed for the arbitrary spin multiplicity, singlet or triplet, of the precursor of the G-pairs as well as for arbitrary recombination rate constants of radical pairs in singlet and triplet states, kS and kT, respectively...
July 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28711056/communication-theoretical-study-of-hff-cation-to-search-for-the-t-p-odd-interactions
#4
L V Skripnikov
The combined all-electron and two-step approach is applied to calculate the molecular parameters which are required to interpret the ongoing experiment to search for the effects of manifestation of the T,P-odd fundamental interactions in the HfF(+) cation by Loh et al. [Science 342, 1220 (2013)] and Ni et al. [J. Mol. Spectrosc. 300, 12 (2014)]. The effective electric field that is required to interpret the experiment in terms of the electron electric dipole moment is found to be 22.5 GV/cm. In the work of Pospelov and Ritz [Phys...
July 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28700186/-the-treatment-of-aki-in-nephrology-hospitalization-the-sle-hdf-15-litres-in-10-hours
#5
REVIEW
Marcello Napoli, Maria Luisa Lefons, Giovanni Sandri, Efisio Sozzo, Carmela Ambrosino
The AKI in intensive care has been widely treated by international and national guidelines. The treatment of AKI in patients not requiring admission in Intensive Care Unit, but often hospitalized in Nephrology Unit, it is showed of less relevance. For over 5 years we have used for the treatment of AKI of patients admitted in Nephrology Unit an intermittent slow technique, implemented in approximately 600 patients with AKI for a total of about 3000 treatments. In this study we report the clinical results obtained in 100 consecutive patients referred to our Nephrology Unit from 1st January 2014...
June 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28675885/high-performance-membrane-dialyzers-and-mortality-in-hemodialysis-patients-a-2-year-cohort-study-from-the-annual-survey-of-the-japanese-renal-data-registry
#6
Masanori Abe, Takayuki Hamano, Atsushi Wada, Shigeru Nakai, Ikuto Masakane
BACKGROUND: Little information is available regarding the type of dialyzer which results in good prognosis. This study is aimed at investigating the association between 7 types of dialyzers and 2-year mortality. METHODS: We conducted a cohort study using data from a nationwide registry of the Japanese Society for Dialysis Therapy. Subjects were 136,676 patients on maintenance hemodialysis (HD) between 2009 and 2011 who underwent maintenance HD for at least 2 years and were treated with one of the following 7 types of high-performance membrane dialyzers: cellulose triacetate (CTA), ethylene vinyl alcohol (EVAL), polyacrylonitrile (PAN), polyester polymer alloy (PEPA), polyethersulfone (PES), polymethylmethacrylate (PMMA), and polysulfone (PS)...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28656379/physiology-and-pathophysiology-of-the-plasminogen-system-in-the-kidney
#7
REVIEW
Per Svenningsen, Gitte Rye Hinrichs, Rikke Zachar, Rikke Ydegaard, Boye L Jensen
The plasminogen system is important for fibrinolysis in addition to tissue remodeling and inflammation with significance for kidney disease. The system consists of the circulating zymogen plasminogen (Plg) and the tissue- and urokinase-type plasminogen activators, tPA and uPA, expressed in the glomeruli, endothelium and tubular epithelium, respectively, and the inhibitors α2-antiplasmin and plasminogen activator inhibitor-type1, PAI-1. Plasminogen is activated by surface receptors, some with renal expression: urokinase-type plasminogen activator receptor (uPAR), plasminogen receptor KT (Plg-RKT), and tPA, most evident in the endothelium...
June 27, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28652800/nutritional-status-among-peritoneal-dialysis-patients-after-oral-supplement-with-once-dialyze-formula
#8
Bancha Satirapoj, Pokkrong Limwannata, Chadarat Kleebchaiyaphum, Janjira Prapakorn, Ussanee Yatinan, Samitti Chotsriluecha, Ouppatham Supasyndh
BACKGROUND: Malnutrition is an important problem in patients treated with long-term dialysis, and most dialysis patients have lower dietary energy and protein intake. This study was undertaken to examine whether orally administered Otsuka Nutrition Pharmaceutical (ONCE) dialyze formula (ODF) supplement would improve energy intake without mineral and electrolyte disturbances in patients with continuous ambulatory peritoneal dialysis (CAPD). METHODS: The effects of ODF supplementation on nutrition markers including serum albumin and prealbumin concentrations and inflammatory stress in patients with chronic CAPD were evaluated...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28648652/dialysis-related-parameters-influence-remodeling-in-the-venous-part-of-the-native-arteriovenous-fistula
#9
Tomasz Gołębiowski, Mariusz Kusztal, Krzysztof Letachowicz, Hanna Augustyniak-Bartosik, Maciej Szymczak, Magdalena Krajewska, Wojciech Marcinkowski, Wacław Weyde, Marian Klinger
AIM: The aim of this study was to evaluate the association of hemodynamic parameters related to hemodialysis and antropometric parameters of patients with changes in the venous part of the arteriovenous fistula (AVF) at points of needling. MATERIAL AND METHODS: 242 HD patients (60.3% men), with median age 65 [IQR 56-75] years, on HD treatment for a median of 49 [IQR 20-88] months with functioning fistula were recruited to the study. The history of vascular access, comorbidity, antropometric (BMI, BSA, body composition) and dialysis-related parameters were analyzed...
June 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28586767/quantification-and-dosing-of-renal-replacement-therapy-in-acute-kidney-injury-a-reappraisal
#10
William R Clark, Martine Leblanc, Zaccaria Ricci, Claudio Ronco
BACKGROUND/AIMS: Delivered dialysis therapy is routinely measured in the management of patients with end-stage renal disease; yet, the quantification of renal replacement prescription and delivery in acute kidney injury (AKI) is less established. While continuous renal replacement therapy (CRRT) is widely understood to have greater solute clearance capabilities relative to intermittent therapies, neither urea nor any other solute is specifically employed for CRRT dose assessments in clinical practice at present...
2017: Blood Purification
https://www.readbyqxmd.com/read/28584226/comparison-of-3-times-a-week-4-and-5-hour-in-center-hemodialysis-sessions-with-use-of-continuous-non-invasive-hemodynamic-monitoring
#11
Łukasz Czyżewski, Janusz Wyzgał, Janusz Sierdziński, Emilia Czyżewska, Jacek Smereka, Łukasz Szarpak
BACKGROUND Very aggressive ultrafiltration rate (lasting 3.5-4 h) may result in inadequate hemodialysis (HD). Our aim was to characterize HD-induced cardiovascular adaptation and its links to fluid removal during 4- vs. 5-h HD sessions. MATERIAL AND METHODS The study involved 50 HD patients. A Cardioscreen device (Messtechnik, Ilmenau, Germany) was used to perform non-invasive hemodynamic measurements during mid-week HD sessions. Body fluids and nutritional status were assessed with a Body Composition Monitor (Fresenius Medical Care)...
June 6, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28581770/collimated-propagation-of-fast-electron-beams-accelerated-by-high-contrast-laser-pulses-in-highly-resistive-shocked-carbon
#12
X Vaisseau, A Morace, M Touati, M Nakatsutsumi, S D Baton, S Hulin, Ph Nicolaï, R Nuter, D Batani, F N Beg, J Breil, R Fedosejevs, J-L Feugeas, P Forestier-Colleoni, C Fourment, S Fujioka, L Giuffrida, S Kerr, H S McLean, H Sawada, V T Tikhonchuk, J J Santos
Collimated transport of ultrahigh intensity electron current was observed in cold and in laser-shocked vitreous carbon, in agreement with simulation predictions. The fast electron beams were created by coupling high-intensity and high-contrast laser pulses onto copper-coated cones drilled into the carbon samples. The guiding mechanism-observed only for times before the shock breakout at the inner cone tip-is due to self-generated resistive magnetic fields of ∼0.5-1  kT arising from the intense currents of fast electrons in vitreous carbon, by virtue of its specific high resistivity over the range of explored background temperatures...
May 19, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28575884/predictors-of-clinical-outcomes-in-hemodialysis-patients-a-multicenter-observational-study
#13
Tayebeh Soleymanian, Hossein Niyazi, Shaghayegh Noorbakhsh Jafari Dehkordi, Shokoufeh Savaj, Hassan Argani, Iraj Najafi
INTRODUCTION: Cardiovascular and noncardiovascular mortality and morbidity rates of hemodialysis patients are high despite improvement in dialysis delivery. MATERIALS AND METHODS: Hemodialysis patients (n = 532) from 9 hemodialysis facilities were enrolled in this cohort study in September 2012. Causes of death, hospitalization, and hemodialysis exit were recorded during a 28-month follow-up period. A Cox proportional hazard model was used to predict death adjusting for case-mix variables, nutrition variables, bone mineral variables, Kt/V, vascular access, and Charlson comorbidities index...
May 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28558715/modern-peptide-biomarkers-and-echocardiography-in-cardiac-healthy-haemodialysis-patients
#14
Franz Maximilian Rasche, Stephan Stoebe, Thomas Ebert, Silvana Feige, Andreas Hagendorff, Wilma Gertrud Rasche, Filip Barinka, Volker Busch, Ulrich Sack, Jochen G Schneider, Stephan Schiekofer
BACKGROUND: In this prospective study, we aimed to assess the haemodynamic changes before and after haemodialysis (HD) in cardiac healthy subjects on chronic HD by imaging methods and endocrine markers of fluid balance. METHODS: Mid-regional pro-atrial natriuretic peptide (MR-proANP), N-terminal prohormone of brain natriuretic peptide (NT-proBNP), vasopressin (AVP) and copeptin (CT-proAVP), metanephrines and normetanephrines, renin and aldosterone, standard transthoracic echocardiography and diameter of vena cava inferior (VCID) were performed in 20 patients with end stage renal disease (CKD5D) before and after HD and were stratified in residual excretion (RE, less or more 0...
May 30, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28552124/application-of-genetic-algorithm-for-hemodialysis-schedule-optimization
#15
Jin Woo Choi, Hajeong Lee, Jung Chan Lee, Saram Lee, Yon Su Kim, Hyung-Jin Yoon, Hee Chan Kim
BACKGROUND: The conventional hemodialysis (HD) schedule has been used for decades, even though new modalities have been introduced. Many reasons limit practices of frequent dialysis, such as patients' environments and unknown optimal schedules for each patient. This research provides a theoretical recommendation of HD schedule through genetic algorithm (GA). METHODS: An end-stage renal disease (ESRD) with various dialysis conditions was modeled through a classic variable-volume two-compartment kinetic model to simulate an anuric patient, and GA was implemented to search for an optimal HD schedule for each individual considering and ignoring burden consumption of each dialysis session...
July 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28546367/intensive-versus-minimal-standard-dosage-for-peritoneal-dialysis-in-acute-kidney-injury-a-randomized-pilot-study
#16
Watanyu Parapiboon, Treechada Chamradpan
♦Background: Dosage for peritoneal dialysis (PD) in acute kidney injury (AKI) is controversial. This study aims to find benefits and risks of intensive versus minimal standard dosage of PD in AKI. ♦ Methods: In a tertiary-hospital, 93 AKI patients who required PD between May 2015 and January 2016 were enrolled in a randomized, open-label controlled study. Patients were randomized to intensive group (> 30 L) and minimal standard group (< 20 L) of PD volume per day for the first 2 consecutive days. The primary outcome was in-hospital mortality...
May 25, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28540893/comparison-of-intradialytic-hemodynamic-tolerance-between-on-line-hemodiafiltration-and-acetate-free-biofiltration-with-profiled-potassium-dialysate-concentration
#17
George Kosmadakis, Enrique Da Costa Correia, Frederic Somda, Didier Aguilera
Intradialytic hypotensive episodes are deleterious for hemodialysis (HD) patients. Acetate-free biofiltration with profiled potassium (AFBK) dialysate concentration may improve their cardiovascular stability. The aim of the present crossover study was to compare intradialytic hemodynamic tolerance and biological parameters between online hemodiafiltration (olHDF) and AFBK. Ten frail HD patients (8 males) with a mean age of 66.71- ± 12.31 years were studied for three months on olHDF and AFBK. There was a significant reduction of the hypotensive episodes during the AFBK period compared to the olHDF period...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28540886/effect-of-hemodialysis-on-oxidants-and-antioxidant-factors-in-chronic-renal-failure
#18
Ramin Tajbakhsh, Mostafa Qorbani, Golbarg Mehrpour, Mitra Rahimzadeh, Mohammad Mehdi Azimzadeh, Hossein Mirmiranpour
The current study was conducted to assess the effect of hemodialysis (HD) on the status of plasma oxidants and antioxidants among patients with end-stage renal disease (ESRD). These parameters can have an influence on the HD process and can also be useful for follow-up of these patients. The participants of this cross-sectional study comprised 91 patients with a mean age of 51.1 ± 8.2 years on chronic HD with kt/v between 1.2 and 1.4. The etiology of ESRD in these patients was as follows: diabetes mellitus in 39, hypertension in 35, and glomerulonephritis in 17 patients...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28534129/insomnia-muscular-cramps-and-pruritus-have-low-intensity-in-hemodialysis-patients-with-good-dialysis-efficiency-low-inflammation-and-arteriovenous-fistula
#19
Olga Hilda Orasan, Aniela Pop Saplontai, Angela Cozma, Simona Racasan, Ina Maria Kacso, Crina Claudia Rusu, Diana Moldovan, Dacian Tirinescu, Alina Potra, Ioan Mihai Patiu, Remus Aurel Orasan
INTRODUCTION: Insomnia, muscular cramps, pruritus and postdialysis recovery time (RT) are quality-of-life parameters that affect hemodialysis (HD) patients physically and mentally. METHODS: We included 171 end-stage renal disease patients: 115 on high-flux HD and 56 on online hemodiafiltration (HDF). Patients were asked "How long does it take you to recover from a dialysis session?" and they evaluated intensity (absent, mild, medium and severe) of insomnia, muscular cramps and pruritus in the past 4 weeks...
May 22, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28497092/the-relationship-between-dialysis-adequacy-and-serum-uric-acid-in-dialysis-patients-a-cross-sectional-multi-center-study-in-iranian-hemodialysis-centers
#20
Eghlim Nemati, Arezoo Khosravi, Behzad Einollahi, Mehdi Meshkati, Mehrdad Taghipour, Shahin Abbaszadeh
Introduction: Uric acid is one of the most significant uremic toxins accumulating in chronic renal failure patients treated with standard dialysis. Its clearance has not any exact relation with urea and creatinine clearance. Objectives: The aim of this study was to investigate the relationship between adequacy of dialysis and serum level of uric acid in dialysis patients of some dialysis centers in Iran. Patients and Methods: In this study 1271 hemodialysis patients who have been treated for more than 3 months were evaluated...
2017: Journal of Renal Injury Prevention
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