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  • Title: Regulation of plasma aldosterone in anephric and non-nephrectomized patients during hemodialysis treatment.
    Author: Olgaard K, Madsen S.
    Journal: Acta Med Scand; 1977; 201(5):457-62. PubMed ID: 899867.
    Abstract:
    The relationships between plasma aldosterone and changes in plasma potassium, plasma cortisol, plasma sodium, blood volume and body weight have been studied in 6 anephric and 11 non-nephrectomized patients on regular hemodialysis. In all patients, the plasma aldosterone concentration decreased during dialysis. In the anephric patients, a significant correlation (p less than 0.001) was demonstrated between the fall in plasma aldosterone and the fall in plasma potassium (total body potassium depletion). Measurements between consecutive hemodialyses, furthermore, showed a significant correlation (p less than 0.001) in anephric patients between total body potassium repletion (increasing plasma potassium) and the rise in plasma aldosterone. In contrast, the potassium and aldosterone changes did not correlate in the non-nephrectomized group. During dialysis, a decrease was found in all parameters, but no correlation was demonstrable in either group between the changes in plasma aldosterone and the fall in plasma cortisol, sodium, blood volume and body weight. The data in the anephric patients emphasize the important role of potassium in the regulation of aldosterone secretion.
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