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Filter by:Hemodialysis causes contact activation of the coagulation pathway (1). For this reason, unfractionated or low molecular weight heparins are administered in daily practice to prevent thrombosis of the dialyzer and blood circuit, but the dose commonly used causes systemic anticoagulation. This can cause serious complications in patients with high risk of bleeding. Regional and low-dose heparinization, use of prostacycline, regional citrate anticoagulation (RCA), and high-flow-rate hemodialysis without anticoagulation have been shown to reduce bleeding complications. Each of these methods, however, is characterized by its own technical difficulties, limitations, or complications. The present study aimed to compare the efficacy and safety of heparin-coated polyacrylonitrile membranes (AN69ST) and regional citrate anticoagulation in hemodialysis patients at risk of bleeding
There are no solid data on the real advantage of an early start of dialysis, as suggested by the DOQI guidelines. Uremic patients frequently have a poor nutritional status. However, we cannot distinguish between the detrimental effect on nutrition of too low a residual renal function or too long a period of low protein-diet, per se. However, it appears that a very-low-protein diet (VLPD) supplemented with essential amino acids and keto-analogs of amino acids, and with an adequate quantity of calories, can prevent hypoalbuminemia at the start of dialysis and can slow the progression of chronic renal failure. EDTA and USRDS data suggest that most patients starting dialysis nowadays are elderly, who also have the highest incidence of morbidity and mortality. Moreover, hospitalization rate becomes higher after the start of dialysis compared to the pre-dialysis period. Can an aminoacid-supplemented VLPD, prolonged beyond the GFR limits suggested by DOQI, offer elderly patients better survival and better quality of life than dialysis? The answer can only come from a prospective, randomized trial, in elderly patients, starting at the GFR values suggested by the NKF-DOQI for starting dialysis, comparing outcomes with a vegetarian VLPD supplemented with a mixture of keto-analogs of amino acids and essential amino acids, and with dialysis.
The goal of the present study is the comparison of different dialysis strategies in critically ill patients with acute renal failure on the intensive care unit. Patients are treated with either continuous dialysis or hemofiltration. Outcome measures are death, restitution of renal function, days on ICU, hemodynamic stability, dialysis efficiency.