title: Peritoneal kinetics in children undergoing continuous ambulatory/cycling peritoneal dialysis.
abstract: We present a report on peritoneal kinetics in children undergoing continuous ambulatory/cycling peritoneal dialysis (CAPD/CCPD). The effect of long-term treatment with CAPD/CCPD, peritonitis episodes, and dialysate inflow volume on peritoneal kinetics in children was evaluated. Peritoneal kinetic studies (PKSs) were performed in 47 pediatric patients at different times following initiation of CAPD/CCPD. In 18 of these patients, PKSs were repeated up to four times with an unchanged dialysate inflow volume after up to 55 months of CAPD/CCPD treatment. The PKS consisted of a 120-minute dwell with a 1.5% dextrose dialysate solution. Peritoneal clearance, dialysance, and dialysate to plasma (D/P) concentration ratios were calculated after 30, 60, and 120 minutes. The results of the serial PKSs demonstrate stable peritoneal creatinine and urea-N clearance, dialysance or D/P concentration ratios. Furthermore, there was no adverse effect of 32 peritonitis episodes. Finally, inflow volumes correlated directly with clearances of creatinine (P less than .01), urea-N (P less than .001), and potassium (P less than .001), and there was an inverse relationship to the D/P concentration ratios of creatinine (P less than .01), urea-N (P less than .01), potassium (P less than .01), and uric acid (P less than .01). Thus, CAPD/CCPD is a useful and effective long-term treatment modality for pediatric patients. Maximal dialysate inflow volumes should be provided to enhance peritoneal kinetics.
mesh_terms: D000293:Adolescent; D002648:Child; D003404:Creatinine / Q000378:metabolism; D005069:Evaluation Studies as Topic; D006801:Humans; D007676:Kidney Failure, Chronic / Q000628:therapy; D007700:Kinetics; D008134:Long-Term Care; D008137:Longitudinal Studies; D010530:Peritoneal Dialysis / Q000379:methods*; D010531:Peritoneal Dialysis, Continuous Ambulatory; D010537:Peritoneum / Q000378:metabolism*; D010538:Peritonitis / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D011446:Prospective Studies; D012189:Retrospective Studies; D013997:Time Factors; D014508:Urea / Q000378:metabolism
chemical_list: D014508:Urea; D003404:Creatinine; D011188:Potassium