Andreas Meinitzer

Andreas Tomaschitz

Astrid Fahrleitner-Pammer

Barkan

Bernini

Brunaud

Carbone

Chhokar

Christiane Drechsler

Eberhard Ritz

Gennari

Hagström

Katharina Kienreich

Khouzam

Kovács

Martin Gaksch

Milliez

Montoli

Olgaard

Pilz

Resnick

Rossi

Runyan

Stefan Pilz

Suki

Thomas R. Pieber

Vidal

Winfried März

Pilz, S.

Kienreich, K.

Drechsler, C.

Ritz, E.

Fahrleitner-Pammer, A.

Gaksch, M.

Meinitzer, A.

Marz, W.

Pieber, T.R.

Tomaschitz, A.

DSpace at VU

Hyperparathyroidism in Patients with Primary Aldosteronism: Cross-Sectional and Interventional Data from the GECOH Study

NARCIS 


                  Context:
                  Experimental studies suggest that aldosterone induces hypercalciuria and might contribute to hyperparathyroidism.
               
               
                  Objective:
                  We aimed to test for differences in PTH levels and parameters of calcium and vitamin D metabolism in patients with primary aldosteronism (PA) compared with patients with essential hypertension (EH) and to evaluate the impact of PA treatment on these laboratory values.
               
               
                  Design, Setting, and Participants:
                  The Graz Endocrine Causes of Hypertension study includes hypertensive patients referred for screening for endocrine hypertension at a tertiary care center in Graz, Austria.
               
               
                  Main Outcome Measures:
                  Differences in PTH levels between patients with PA and EH.
               
               
                  Results:
                  Among 192 patients, we identified 10 patients with PA and 182 with EH. PTH levels (mean ± sd in picograms per milliliter) were significantly higher in PA patients compared with EH (67.8 ± 26.9 vs. 46.5 ± 20.9; P = 0.002). After treatment of PA with either adrenal surgery (n = 5) or mineralocorticoid receptor antagonists (n = 5), PTH concentrations decreased to 43.9 ± 14.9 (P = 0.023). Serum 25-hydroxyvitamin D concentrations were similar in both groups. Compared with EH, serum calcium concentrations were significantly lower (2.35 ± 0.10 vs. 2.26 ± 0.10 mmol/liter; P = 0.013), and there was a nonsignificant trend toward an increased spot urine calcium to creatinine ratio in PA [median (interquartile range) 0.19 (0.11–0.31) vs. 0.33 (0.12–0.53); P = 0.094].
               
               
                  Conclusions:
                  Our results suggest that PA contributes to secondary hyperparathyroidism. Further studies are warranted to evaluate whether PTH has implications for PA diagnostics and whether mineralocorticoid receptor antagonists have a general impact on PTH and calcium metabolism.
               </jats:sec

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The Journal of Clinical Endocrinology & Metabolism

Hyperparathyroidism in Patients with Primary Aldosteronism: Cross-Sectional and Interventional Data from the GECOH Study

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