No significant differences in peritoneal fluid handling in children using pH-neutral or acidic solutions

Nourse P. ; van de Kar N.C.A.J. ; Willems H.L. ; Schroder C.H. (2006)


◆ Objectives: Differences in peritoneal fluid handling in the acute setting can be expected if children are converted to pH-neutral dialysis solutions because conventional acidic solutions exert toxic effects on peritoneal mesothelial cells and microcirculation. Peritoneal fluid kinetics was therefore investigated with both types of solutions in a group of children. ◆ Design: Peritoneal equilibration tests (PETs) were performed in 12 patients [mean age 70 months, mean time on peritoneal dialysis (PD) 18 months] using a pH-neutral PD fluid (Physioneal 3.86%; Baxter Ltd, Castlebar, Ireland) and dextran 70 as a volume marker. The results of these PETs were compared to those of a historic group of 12 children (mean age 75 months, mean time on PD 17 months). ◆ Setting: Pediatric dialysis unit in a tertiary institute. ◆ Patients: Stable pediatric PD patients. ◆ Main Outcome Measures: Transcapillary ultrafiltration (TCUF) and marker clearance, dialysate-to-plasma (D/P) ratios for urea and creatinine, and Dt/D0 ratio for glucose. ◆ Results: TCUF and lymphatic absorption were not different between the two groups. There was also no significant difference in small solute clearance measured by D/P ratio for urea and creatinine and Dt/D0 ratio for glucose. ◆ Conclusion: Peritoneal fluid kinetics is not significantly altered if pH-neutral dialysis solutions are applied compared to acidic solutions. An altered TCUF, as is hypothetically possible using an acidic solution, was not established. Copyright © 2006 International Society for Peritoneal Dialysis.

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