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Medicina Clínica (English Edition) Hyperparathyroidism in patients with low bone mineral density treated with zoled...
Journal Information
Vol. 163. Issue 12.
Pages 595-599 (December 2024)
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3
Vol. 163. Issue 12.
Pages 595-599 (December 2024)
Original article
Hyperparathyroidism in patients with low bone mineral density treated with zoledronic acid or denosumab
Hiperparatiroidismo en pacientes con baja densidad mineral ósea tratados con ácido zoledrónico o denosumab
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3
Carmen Riesco-Bárcena, José Ivorra-Cortés
Corresponding author
ivorra_jos@gva.es

Corresponding author.
, Elena Grau-García, Luis González-Puig, Samuel Leal, Anderson Huaylla, José Román-Ivorra
Servicio de Reumatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain
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Tables (3)
Table 1. Baseline characteristics of patients included in the study.
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Table 2. Changes in laboratory parameters.
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Table 3. Logistic regression model between categorised PTH (≥65&#¿;pg/mL) and other demographic and laboratory variables.
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Additional material (1)
Abstract
Objective

To analyze the prevalence of hyperparathyroidism in patients treated with zoledronic acid (ZA) or denosumab, its relationship with other parameters and how it affects on bone mineral density (BMD) evolution.

Methods

Retrospective observational study in patients with osteoporosis or osteopenia and high risk of fracture, who have received denosumab or ZA for at least two years. Patients diagnosed with hyperparathyroidism or glomerular filtration rate <30&#¿;mL/min at baseline visit were excluded from the study.

Results

Ninety patients (ZA: 54.44%) were included. 18.36% of ZA-treated patients had elevated PTH levels at some time compared to 36.58% denosumab-treated patients (p&#¿;>&#¿;0.05). Patients with persistently elevated PTH were 6.13% in the AZ group and 19.51% in the denosumab group (p&#¿;<&#¿;0.04).

We found a statistically significant inverse association between elevated PTH levels, glomerular filtration rate (p&#¿;=&#¿;0.007) and albumin-corrected calcium (p&#¿;<&#¿;0.001). We did not find an association between hyperparathyroidism and BMD evolution.

Conclusions

A high incidence of hyperparathyroidism was observed in patients treated with AZ and especially denosumab. Hyperparathyroidism correlated inversely with glomerular filtration rate and albumin-corrected calcium. Elevated PTH does not appear to affect short-term bone mineral density evolution.

Keywords:
Zoledronic acid
Denosumab
Hyperparathyroidism
Glomerular filtration rate
Albumin-corrected calcium
Phosphorus
Resumen
Objetivo

Analizar la prevalencia de elevación de la paratohormona (PTH) en pacientes tratados con ácido zoledrónico (AZ) o denosumab, su relación con otros parámetros y su repercusión en la densidad mineral ósea (DMO).

Métodos

Estudio observacional retrospectivo en pacientes con osteoporosis o con osteopenia y alto riesgo de fractura que han recibido denosumab o AZ durante al menos dos años. Se excluyeron del estudio los pacientes diagnosticados de hiperparatiroidismo o con filtrado glomerular <30&#¿;mL/min en la visita basal.

Resultados

Se incluyeron 90 pacientes. El 54,44% se trataron con AZ. El 18,36% de los pacientes tratados con AZ presentaron niveles de PTH elevados en alguna ocasión frente al 36,58% de los pacientes tratados con Denosumab (p&#¿;>&#¿;0,05). Los pacientes con PTH persistentemente elevada fueron 6,3% en el grupo de AZ y 19,51% en el de denosumab (p&#¿;<&#¿;0,04).

Encontramos una asociación inversa entre los niveles elevados de PTH, el filtrado glomerular (p&#¿;=&#¿;0.007) y el calcio corregido por albúmina (p&#¿;<&#¿;0,001). No encontramos asociación entre el hiperparatiroidismo y la evolución de la DMO.

Conclusiones

Se detectó una elevada incidencia de hiperparatiroidismo en pacientes tratados con AZ y sobre todo con denosumab. El hiperparatiroidismo se correlacionó inversamente con el filtrado glomerular y el calcio corregido por albúmina. La elevación de la PTH no parece influir en la evolución de la DMO a corto plazo.

Palabras clave:
Ácido zoledrónico
Denosumab
Hiperparatiroidismo
Filtrado glomerular
Calcio corregido por albúmina
Fósforo

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