Nephrol Dial Transplant (1992) 7: 632-635
© 1992 European Renal Association-European Dialysis and Transplant Association
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Audit of the use of calcium carbonate as a phosphate binder in 100 patients treated with continuous ambulatory peritoneal dialysis
Department of Renal Medicine, Southmead Hospital Bristol, UK
Correspondence and offprint requests to: Correspondence and offprint requests to: Dr A. Davenport, Department of Renal Medicine, Southmead Hospital, Westbury on Trym, Bristol, BS10 5NG, UK
We studied the effect of converting 100 established CAPD patients from aluminium- to calcium-based phosphate binders. After a follow-up of 1 year only 60% of patients remained on calcium carbonate. Hypercalcaemia was the major problem, with more than 40% of patients having a serum calcium in excess of 3.0 mmol/1. Several patients required hospitalization for symptomatic hypercalcaemia. Hypercalcaemia was more common in patients with normal serum parathyroid hormone concentrations (65 versus 25%, P<0.01). Serum phosphate control was better prior to commencing calcium carbonate when patients were treated with aluminium phosphate binders mean 1.71 ± 0.15 mmol/1 (SEM) than at the time of maximum serum calcium concentration, 1.81 ± 0.25, P<0.05. This study does not confirm the findings of others, which have suggested that calcium carbonate is a safe and effective phosphate binder for patients with end-stage renal failure.
Keywords: CAPD; calcium carbonate; hypercalcaemia
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