نتایج جستجو برای: kidneys
تعداد نتایج: 21277 فیلتر نتایج به سال:
Recent work has shown that the dialyzer mass transfer area coefficient (Ko A) for urea increases when the dialysate flow rate is increased from 500 to 800 mL/min. In this study we determined urea and creatinine clearances for two commercial dialyzers containing polysulfone hollow fibers in vitro at 37°C, a nominal blood flow rate of 300 mL/ min, and dialysate flow rates (Qd ) ranging from 100 t...
A byproduct of experience with the artificial kidney was the detection of reversible electrocardiographic "currents of injury" in patients with electrolyte imbalance. These changes occurred irrespective of anatomic alterations and resembled the changes of acute pericarditis or myocardial infarction. The electrolyte basis for the "current of injury" was established by the prompt abolition of the...
With reversed-phase high-performance liquid chromatography we effected rapid and efficient separation of metabolites present in hemodialysate fluid from uremic patients on the artificial kidney. With an aqueous sodium acetate/methanol gradient as mobile phase, more than 50 ultraviolet-absorbing constituents were resolved in a 70-min chromatogram of a 100-mul sample of dialysate. Many of the met...
BACKGROUND AND OBJECTIVES A 1-year multicenter prospective randomized controlled study was conducted on the effects of vitamin E-bonded polysulfone dialyzers on erythropoiesis-stimulating agent response in hemodialysis patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Major inclusion criteria were use of high-flux polysulfone dialyzers with 50-70 ml/min β2-microglobulin clearance over 3...
In the early 1990s, live kidney donation regained popularity to meet the demand of kidney transplantation. Significant developments in the field of live kidney donation have established live donation as the prime source of kidney transplants. Nowadays, management is focused on logistic and immunological innovations, and improvements in care of the live donor. However, a flawless surgical proced...
PURPOSE To measure shear wave velocities (SWVs) by acoustic radiation force impulse (ARFI) ultrasound elastography in normal kidneys and in hydronephrotic kidneys in young children and to compare SWVs between the hydronephrosis grades. METHODS This study was approved by an institutional review board, and informed consent was obtained from the parents of all the children included. Children und...
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