Evidence for a defect in urinary concentrating ability in primary aldosteronism and its reversal by adrenal surgery.

Abstract:

:Of 15 patients with primary aldosteronism, 7 had idiopathic adrenal hyperplasia (IHA) and 8 had aldosterone-producing adenoma (APA). In order to determine any renal problems involved in the treatment, the renal clearance of these patients was analyzed and the results compared with those obtained from 12 patients with essential hypertension. With water diuresis or under antidiuresis status, levels of urine volume, Cosm and CH2O in patients with APA were greater (p less than 0.05-p less than 0.001) than those of patients with essential hypertension, while the fractional tubular sodium delivery of the former patients was lower than that of the latter patients (p less than 0.001 or less than 0.05). A similar tendency was observed in clearance studies in patients with IHA, although to a lesser extent. Adrenal surgery for patients with APA normalized these values, but administration of trilostane (3 beta-hydrosteroid dehydrogenase inhibitor) to patients with IHA failed to improve these values. These results indicate that impaired urinary concentrating ability as well as reduced urinary diluting capability is a common feature of primary aldosteronism. Such impaired renal function was improved only in patients with APA after adrenal surgery.

journal_name

Urol Int

journal_title

Urologia internationalis

authors

Nakada T,Koike H,Katayama T

doi

10.1159/000281962

subject

Has Abstract

pub_date

1987-01-01 00:00:00

pages

295-301

issue

4

eissn

0042-1138

issn

1423-0399

journal_volume

42

pub_type

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