نتایج جستجو برای: dialysis membranes

تعداد نتایج: 129984  

Journal: :Journal of scientific research in medical and biological sciences 2023

Purpose: The study aimed to evaluate HCV infection rates are widespread in hemodialysis patients and identify any potential risk factors this cohort. Methods: Hepatitis C virus statistical information was collected from the publicly accessible Karbala province/ Iraq. Results: All told, 236 dialysis patients, 150 (63.6%) male 86 (36.4%) female, they between ages of 15 78 (44.39 + 15.06 S.D.) yea...

2013
Ali Momeni Hamid Rouhi Glareh Kiani Masoud Amiri

BACKGROUND Several studies have been carried out to evaluate the effects of dialysis on pulmonary function tests (PFT). Dialysis procedure may reduce lung volumes and capacities or cause hypoxia; however, to the best of our knowledge, there is no previous study evaluating the effects of membrane type (high flux vs. low flux) on PFT in these patients. The aim of this study was the evaluation of ...

2009
D Rădulescu D Ferechide

In the last decade, many researches have reached to the conclusion that preservation of residual renal function (RRF) is important after initiating dialysis, as well as in the predialysis period. RRF has been proven to contribue to the quality of life of dialysis patients. Longer preservation of RRF provides a better small and middle molecule removal, improved volemic status and arterial pressu...

2003
Brian J. Kirby Anup K. Singh

Laser-induced phase-separation polymerization of a porous acrylate polymer is used for in-situ fabrication of dialysis membranes inside glass microchannels. A shaped 355 nm laser beam is used to define polymer membranes of 4-14 μm thickness, which bond to the glass microchannel and form a semipermeable membrane. Differential diffusion through the membrane is observed for fluorescein molecules v...

Journal: :Journal of Nippon Medical School = Nippon Ika Daigaku zasshi 2013
Tetsuya Kashiwagi Kazuto Sato Seiko Kawakami Masayoshi Kiyomoto Miho Enomoto Tatsuya Suzuki Hirokazu Genei Hiroaki Nakada Yasuhiko Iino Yasuo Katayama

BACKGROUND Hemodialysis is a treatment in which uremic toxins and excess water content are removed from the blood with a dialyzer and dialysis fluid. The efficiency of hemodialysis is strongly influenced by the following 3 parameters: the blood flow rate (QB), the dialysis fluid flow rate (QD), and the overall mass transfer area coefficient (K0A), an index of a dialyzer's performance. The flow ...

Journal: :Contributions to nephrology 2011
Bernard Canaud

In the mid-1980s, limits and side effects of contemporary hemodialysis were basically due to short treatment time, use of low-flux membranes and employment of acetate-buffered dialysate. These were already associated with a relatively high morbidity and cardiovascular mortality as part of diaysis-related pathology. Based on these considerations, the concept of on-line hemodiafiltration (HDF) wa...

Journal: :American journal of kidney diseases : the official journal of the National Kidney Foundation 1985
G C Francos A Besarab J F Burke J Peters M V Tahamont M H Gee J T Flynn D Gzesh

Hypoxemia during hemodialysis may result from several differing processes. We initially studied patients undergoing standard acetate hemodialysis. At 15 minutes of dialysis, leukopenia (primarily neutropenia), a decline of platelet count, and hypoxemia occurred, but without a significant change in mean minute ventilation. Complement activation (V/A ratios of C5a greater than 1.0) persisted thro...

2001
Xu Tongwen Yang Weihua

In this paper, a new series of anion exchange membranes have been produced from linear engineering plastics poly(2,6dimethyl-1,4-phenylene oxide) (PPO) by conducting the processes of bromination, chlomethylization and amination. By using this series of membranes, the runs of sulfuric acid recovery from titanium white waste liquor were experimentally conducted. The effects of some important fact...

2013
Helmut Schiffl

less than 60.3 months. By comparison, other authors reported the prevalence of CTS as 0 at 5 years [2] when low-flux membranes and commercial (potentially contaminated) dialysis fluid were used. Busch et al. [1] clearly overestimated the prevalence of CTS in their patients (median follow-up 31 months). (2) Cross-sectional studies may establish associations, but not causality. Due to the nonrand...

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