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Horm Metab Res 2010; 42(6): 440-445
DOI: 10.1055/s-0029-1246185
Review

© Georg Thieme Verlag KG Stuttgart · New York

Mineralocorticoid Antagonists Treatment Versus Surgery in Primary Aldosteronism

C. Catena1 , G. Colussi1 , A. Di Fabio1 , M. Valeri1 , L. Marzano1 , A. Uzzau1 , L. A. Sechi1
  • 1Internal Medicine, Hypertension Unit, Department of Experimental and Clinical Pathology and Medicine, and General Surgery, Department of Surgical Science, University of Udine, Udine, Italy
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Publikationsverlauf

received 14.09.2009

accepted 22.12.2009

Publikationsdatum:
29. Januar 2010 (online)

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Abstract

Recent evidence indicates a greater frequency of primary aldosteronism (PA) among patients with hypertension than the previously accepted prevalence. PA was once considered a relatively benign form of hypertension associated with low incidence of organ complications. Recent views, however, suggest that long-term exposure to increased aldosterone levels might result in cardiovascular, renal, and metabolic sequelae that occur independently of the blood pressure level. Cross-sectional comparisons with patients with essential hypertension have demonstrated that patients with PA are at higher risk of cardiovascular events, have more frequent left ventricular hypertrophy and diastolic dysfunction, have greater urinary albumin losses as a marker of a hemodynamic intrarenal adaptation, and are insulin resistant. Some of these findings have been corroborated by the results of short-term, follow-up studies where it was shown that unilateral adrenalectomy or treatment with mineralocorticoid receptor (MR) antagonists are effective in correcting hypertension and hypokalemia. Normalization of blood pressure and correction of hypokalemia, however, are not the only goals in managing PA and effective prevention of organ complications is mandatory in these patients. The relative efficacy of adrenalectomy and MR antagonists, in the long-term, on the cardiovascular, renal, and metabolic outcomes still needs evaluation, being the aldosterone-induced tissue damage the main factor that could justify the cost of increasing efforts in screening of disease and differentiation of subtypes. In this narrative review, we summarize the results obtained with either surgical or medical treatment of PA and outline the findings of long-term, prospective studies on the effects of treatment on cardiovascular and renal outcomes and on insulin sensitivity.

Key words

adrenalectomy - albuminuria - cardiovascular events - glomerular filtration rate - left ventricular hypertrophy - spironolactone

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Correspondence

L. A. SechiMD 

Clinica Medica, University of Udine

Department of Experimental and Clinical Pathology and Medicine (DPMSC)

Piazzale S. Maria della

­Misericordia 1

33100 Udine

Italy

Telefon: +39/0432/559 804

Fax: +39/0432/420 97

eMail: sechi@uniud.it