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  • Title: [Effect of hemodialysis on plasma aldosterone in anephric patients (author's transl)].
    Author: Vetter W, Záruba K, Armbruster H, Beckerhoff R, Siegenthaler W.
    Journal: Klin Wochenschr; 1975 Jan; 53(1):17-20. PubMed ID: 1123892.
    Abstract:
    Plasma aldosterone, plasma cortisol and the serum concentrations of sodium and potassium were determined in 5 anephric patients before and at short time intervals up to 180 minutes after hemodialysis. Plasma aldosterone increased in 4 of 5 patients during hemodialysis while in all patients plasma cortisol, sodium and potassium decreased. Only one patient showed a fall in aldosterone during hemodialysis. After hemodialysis plasma aldosterone gradually decreased over a period of 3 hours in 3 of 5 patients, whereas the remaining two patients showed typical secretory episodes of aldosterone. In each patient serum potassium rapidly increased while serum sodium showed only minor variations. Plasma cortisol followed the normal circadian rhythm. We suggest that a still unkown factor had caused the observed increases in plasma aldosterone during hemodialysis. There are reasons to believe that over the period observed after hemodialysis the intracellular potassium concentration and not serum potassium levels has influenced adrenal aldosterone release. This would explain the paradoxical decrease in plasma aldosterone in 3 of the 5 patients while serum potassium increased.
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