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  • Title: The renin-angiotensin-aldosterone system during haemodialysis with acetate or bicarbonate at different dialysate sodium concentrations.
    Author: Krämer BK, Ress KM, Ulshöfer TM, Risler T.
    Journal: Nephrol Dial Transplant; 1987; 2(6):531-6. PubMed ID: 3126454.
    Abstract:
    The hormones of the renin angiotensin aldosterone system were measured during regular haemodialysis with acetate or bicarbonate at dialysate sodium concentrations of 135, 140, 145, and 150 mmol/l. Plasma renin activity and aldosterone concentration were higher during acetate haemodialysis than during bicarbonate haemodialysis. At lower dialysate sodium concentrations, plasma renin activity (acetate dialysis and bicarbonate dialysis) and aldosterone concentration (only acetate dialysis) were higher than they were at higher dialysate sodium concentrations. Plasma renin activity increased during acetate dialysis, but did not change during bicarbonate dialysis. Aldosterone and potassium concentrations were positively correlated. Aldosterone decreased during haemodialysis (increase to predialysis values at the end of haemodialysis (4 h) at lower dialysate sodium concentrations). It is concluded that the renin angiotensin aldosterone system is activated more during acetate dialysis than during bicarbonate dialysis. Aldosterone concentrations seem to be related more closely to serum potassium than to renin-angiotensin-aldosterone system and to serum sodium intradialytically.
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