P. Pfitzenmeyer et al., SECONDARY HYPERPARATHYROIDISM IN THE HOSP ITALIZED ELDERLY PATIENT - INTACT PARATHYROID-HORMONE LEVELS IN 200 CASES, La Revue de medecine interne, 14(10), 1993, pp. 966-966
Plasma intact parathyroid hormone (PTH) determinations were performed
in 200 elderly patients admitted in a geriatric care unit. Abnormally
high levels of PTH were observed in 40 subjects. There was a significa
nt correlation between plasma ionized calcium determinations or creati
nine clearance and PTH levels. Subjects with high PTH levels exhibited
constantly reduced levels of 25 OH-D3. A calcium and vitamin D supple
ment, performed in 13 patients, was constantly followed by a decrease
of the PTH level.