Journal Information
Vol. 34. Issue. 5.September 2014
Pages 545-692
Vol. 34. Issue. 5.September 2014
Pages 545-692
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Efectos del acetato cálcico/carbonato magnésico en el tratamiento de la hiperfosfatemia en pacientes en diálisis en la práctica clínica real. Seguimiento durante un año
Effect of calcium acetate/magnesium carbonate in the treatment of hyperphosphataemia in dialysis patients in real clinical practice. One year follow up
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Ángel L.M. de Franciscoa, Lara Belmara, Celestino Piñeraa, María Kislikovaa, Miguel Serasa, Mara Serranoa, Zoila Albinesa, Cristina Sangoa, Manuel Ariasa
a Servicio de Nefrología, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria,
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Antecedentes: Este estudio observacional se llevó a cabo para investigar el uso y la efectividad, en la práctica clínica real, del acetato cálcico/carbonato magnésico (CaMg) en el tratamiento de la hiperfosfatemia en pacientes en diálisis. Métodos: Se realizó un seguimiento durante 3-12 meses en 120 pacientes adultos con enfermedad crónica renal en tratamiento con diálisis que recibían monotratamiento con CaMg o en combinación con otros quelantes del fósforo. Se midieron en suero los valores de fósforo, calcio, magnesio, hormona paratiroidea y concentración de albúmina a nivel basal y tras 3, 6 y 12 meses, respectivamente. Además, se documentó la dosis de CaMg, el uso de quelantes de fósforo concomitantes, la vitamina D y el cinacalcet. Los pacientes se dividieron en 2 subgrupos: aquellos a los que solo se les administraba CaMg (n=79) frente a los que recibían CaMg y un quelante de fósforo concomitante (n=41). Resultados: En ambos subgrupos, los niveles de fósforo sérico disminuyeron de forma significativa, con respecto a los basales, a los 3, 6 y 12 meses de tratamiento con CaMg. El porcentaje de logro de los niveles recomendados de fósforo sérico mejoró tras iniciar el tratamiento con CaMg. El mes 6, un total del 78% se encontraba dentro de las recomendaciones objetivo de Calidad de los Resultados de la Insuficiencia Renal (K/DOQI). El calcio sérico total corregido aumentó durante el tratamiento con CaMg, pero superaba levemente los límites superiores normales solo en tres pacientes. Asimismo, se observaron incrementos significativos del magnesio asintomáticos (P<0,001) en el grupo de monoterapia a los 3, 6 y 12 meses. Un total de 80 pacientes (67%) sufrieron episodios de hipermagnesemia leve (>2,6 mg/mL, 1,05 mmol/L). Conclusiones: El presente análisis de la práctica clínica habitual, en consonancia con los datos obtenidos de un ensayo aleatorizado controlado, demuestra que el tratamiento con CaMg mejora de forma considerable los niveles de fósforo sérico y ayuda a los pacientes a conseguir los objetivos K/DOQI y KDIGO (mejora de los resultados globales en la enfermedad renal).

Palabras clave:
Acetato cálcico/carbonato magnésico
Palabras clave:
Hiperfosfatemia
Palabras clave:
Diálisis
Palabras clave:
Quelante de fósforo

Background: This observational study was conducted to investigate the use and effectiveness of calcium acetate/magnesium carbonate (CaMg) in the treatment of hyperphosphataemia in dialysis patients in real-world clinical practice. Methods: 120 adult CKD patients on dialysis who received CaMg alone or in combination with other phosphate binders were followed-up for 3-12 months. Serum phosphorus, calcium, magnesium, parathyroid hormone and albumin concentration was measured at baseline and after 3, 6 and 12 months respectively. In addition, CaMg dosage, use of concurrent phosphate binders, vitamin D and cinacalcet was documented. Patients were evaluated in 2 subgroups – CaMg alone (n=79) vs. CaMg + concurrent phosphate binder (n=41). Results: In both subgroups serum phosphorus levels decreased significantly from baseline at 3, 6 and 12 months of CaMg treatment. The percentage achievement of recommended serum phosphorus targets improved after CaMg initiation. At month 6, a total of 78% were within the Kidney Disease Outcomes Quality Initiative (K/DOQI) target range. Total corrected serum calcium increased during CaMg treatment, but mildly exceeded the upper limit of normal in three patients only. Asymptomatic significant increases in magnesium (p<0.001) were observed in the monotherapy group at 3, 6 and 12 months. A total of 80 patients (67%) experienced episodes of mild hypermagnesaemia (>2.6mg/mL, 1.05mmol/L). Conclusions: This analysis of current clinical practice shows that – consistent with findings from a randomised controlled trial – CaMg treatment leads to marked improvement in serum phosphorus levels, helping patients in trying to achieve K/DOQI and KDIGO (Kidney Disease Improving Global Outcome) targets.

Keywords:
Calcium acetate/magnesium carbonate
Keywords:
Hyperphosphataemia
Keywords:
Dialysis
Keywords:
Phosphate binder
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