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[Plasma-aldosterone and renin activity in Bartter's syndrome (author's transl)].

The temporal changes of aldosterone concentration and renin activity in plasma under the influence of stimulating and inhibiting factors were tested in two patients with Bartter's syndrome. There was a normal response to potassium and sodium administration, spironolactone, angiotensin II, ACTH and dexamethasone. Changes in plasma-aldosterone concentration, as measured at frequent intervals during angiotensin II infusion, suggest differential regulation of aldosterone synthesis by angiotensin II. In one patient the symptoms improved with administration of glucocorticoid derivatives.