ISSN:
1437-7799
Schlagwort(e):
Key words Hemodialysis
;
Chronic renal failure
;
Renal osteodystrophy
;
Parathyroid hormone
;
Intact osteocalcin
;
Serum calcium
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Abstract Background. This study was carried out to evaluate potential factors affecting long-term parathyroid function in patients on maintenance hemodialysis. Methods. Biochemical parameters, including intact parathyroid hormone (i-PTH) and intact osteocalcin (i-OC) were analyzed retrospectively in 120 outpatients receiving hemodialysis, for the 4 years between 1992 and 1996. Patients were classified into the following three groups according to their serum i-PTH levels in 1996: low PTH (〈100 pg/ml), normal PTH (100–450 pg/ml), and high PTH (≧450 pg/ml). Results. Among the three PTH groups, no differences were found in age, sex, duration of dialysis, and laboratory parameters, except for serum levels of alkaline phosphatase (ALP), i-PTH, and i-OC. The percentage of diabetic patients was higher in the low PTH group than in the other two PTH groups. Both serum ALP and i-PTH levels increased in the high PTH group, and serum i-PTH level decreased in the low PTH group during the 4 years. The change in serum calcium (Ca) level was negatively correlated with that in serum i-PTH level (1994–1996, r = −0.623, 1992–1996, r = −0.565; P 〈0.0001). A higher correlation coefficient was observed in the low PTH group than in the other PTH groups, although the difference was not significant. A weak positive correlation of the changes in serum inorganic phosphorus (IP) level (1994–1996) and i-PTH level (1994–1996) was found in the high PTH group (r = 0.379, P 〈 0.05). Conclusion. Serum Ca level may play a determinant role in suppressing serum i-PTH level in hemodialysis patients. Serum IP level may stimulate serum i-PTH level in patients with hyperparathyroidism, although the physiological role of serum IP is yet to be established.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/PL00012165
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