MRA and ARB Treatment in Screening of Primary Aldosteronism

After two biochemical and clinical evaluations under baseline conditions and after pharmacological washout from diuretics, betablockers, ARBs or ACEI (about 4 weeks) and MRAs (abut 6 weeks), PA patients will be treated with canrenone 50-100 mg orally once a day. After 1 or 2 weeks the dose will be doubled if necessary to control BP and serum potassium.

"After one month of treatment with canrenone the patients will undergo a clinical and biochemical evaluation (FW1) in a manner identical to the two basal evaluations. After, they will continue with a combination therapy with canrenone, at the dose reached, plus olmesartan starting with 10 mg a day for oral administration, a dose that could be doubled, if necessary, to achieve normotension.~At the end of the second month of the double therapy, patients will undergo a biochemical re-evaluation at the Center of Hypertension (FW2) with methods identical to those performed in the two baseline evaluations and after one month of canrenone."