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Published on: July 19, 2018
Phosphate balance in peritoneal dialysis patients: role of ultrafiltration
Abstract:
Current National Kidney Foundation's Disease Outcome Quality Initiative (K/DOQI) clinical practice guidelines for bone metabolism and disease in chronic kidney disease (CKD) recommend maintenance of serum phosphorus levels below 5.5 mg/dl. About 40% of patients maintained on chronic peritoneal dialysis (CPD) have phosphate levels above 5.5 mg%. The present study was designed to examine the relative contribution of ultrafiltration to phosphate removal in CPD patients. 24-hour dialysate collections were obtained in 28 CPD patients and the diffuse and ultrafiltration (UF) contributions to phosphate removal determined. 11% of phosphate removal was accounted for by UF. There was a highly significant correlation between UF rate and the % of phosphate removed by UF. The results of this study underscore the importance of individualizing the peritoneal dialysis prescription.
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