Calcium-based Phosphate Binders and Bone Mineral Density in Patients Undergoing Hemodialysis: a Retrospective Cohort Study

Overview

Journal Clin Exp Nephrol

Publisher Springer

Specialty Nephrology

Date 2024 Apr 9

PMID 38594468

Authors

Kazuhiko Kato

Akio Nakashima

Masamitsu Morishita

Ichiro Ohkido

Takashi Yokoo

Affiliations

Soon will be listed here.

Abstract

Background: Calcium supplements are commonly prescribed to prevent fractures in patients with osteoporosis. Nonetheless, they are generally eschewed in hemodialysis patients because they increase vascular calcification and induce cardiovascular disease. This retrospective cohort study aimed to investigate the effect of calcium-based phosphate binders (CBPB) on bone mineral density (BMD) in hemodialysis patients.

Methods: Outpatients on dialysis who underwent BMD measurement from January to December 2017, whose data on BMD trends and CBPB administration were recorded over the next 4 years, were enrolled. Patients receiving anti-osteoporotic medications were excluded. The association between the presence and duration of CBPB administration and changes in BMD was evaluated.

Results: The femoral neck's BMD decreased from 0.836 g/cm (0.702-0.952) to 0.764 g/cm (0.636-0.896) (P < 0.001) in the non-CBPB group (patients who never received CBPB over 4 years, n = 32). The CBPB group (n = 56) exhibited only a minute decrease from 0.833 g/cm (0.736-0.965) to 0.824 g/cm (0.706-0.939) (P = 0.004). Multivariate linear regression analysis revealed better BMD maintenance in the CBPB group [β-coefficient (95% CI): 0.033 (0.001-0.065); P = 0.046] than in the non-CBPB group. Additionally, the prolonged-CBPB administration group showed superior BMD preservation [β-coefficient (95% CI): 0.038 (0.001-0.076); P = 0.042].

Conclusion: CBPB administration may be associated with BMD maintenance.

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