title: 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.
authors.forename: Carlos Andres
authors.initials: CA
authors.lastname: Granja
authors.forename: Peter
authors.initials: P
authors.lastname: Juergensen
authors.forename: Fredric O
authors.initials: FO
authors.lastname: Finkelstein
mesh_terms: D000368:Aged; D002908:Chronic Disease; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006706:Homeostasis / Q000502:physiology*; D006801:Humans; D007674:Kidney Diseases / Q000378:metabolism* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D010530:Peritoneal Dialysis; D010710:Phosphates / Q000378:metabolism*; D011446:Prospective Studies; D014462:Ultrafiltration; D014481:United States
chemical_list: D010710:Phosphates