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Revista de Osteoporosis y Metabolismo Mineral

versión On-line ISSN 2173-2345versión impresa ISSN 1889-836X

Resumen

RAMOS SOSA, C et al. Differences in bone mineral metabolism normocalcemic primary hyperparathyroidism with respect to classical primary hyperparathyroidism. Rev Osteoporos Metab Miner [online]. 2020, vol.12, n.1, pp.14-19.  Epub 15-Jun-2020. ISSN 2173-2345.  http://dx.doi.org/10.4321/s1889-836x2020000100003.

Objetive:

Normocalcemic primary hyperparathyroidism is a less known variety of classical primary hyperparathyroidism. In this paper, we present its clinical expression and data related to bone mineral metabolism, both analytically and densitometrically, comparing them with a group of patients with classic primary hyperparathyroidism, with hypercalcemia.

Material and methods:

Study of cases and controls where we consider case of patients with normocalcemic primary hyperparathyroidism (n=25) and control (n=25) of patients with primary hyperpartyroidism with hypercalcemia (classical primary hyperparathyroidism). A complete clinical assessment was carried out with clinical data collection and 24h blood and urine analytical determinations were performed, as well as estimating bone mineral density and trabecular bone score by densitometry (dual x-ray absorptiometry, DXA) and ultrasound parameters in the calcaneus.

Results:

In this clinical study, patients with classic primary hyperparathyroidism only show a higher prevalence of urolithiasis (OR: 9.333; 95% CI: 1.50-82.7) compared to patients suffering from a normocalcemic primary hyperparathyroidism. In all other clinical, analytical, densitometric and ultrasonographic parameters, there are no statistically significant differences between the two groups.

Conclusions:

Apart from serum calcium levels and the prevalence of urolithiasis, normocalcemic hyperparathyroidism is indistinguishable from classical hyperparathyroidism.

Palabras clave : Hyperparathyroidism; primary; normocalcemic; densitometry; quantity; quality; bone.

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