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Related Experiment Videos

Augmenting solute clearance in peritoneal dialysis

R T Krediet1, C E Douma, R W van Olden

  • 1Department of Medicine, University of Amsterdam, The Netherlands.

Kidney International
|December 16, 1998
PubMed
Summary
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Peritoneal dialysis patients can enhance small solute removal by increasing dialysis fluid volume and exchanges. Furosemide does not improve solute clearance, but nitroprusside may augment peritoneal transport.

Area of Science:

  • Nephrology
  • Renal Replacement Therapy
  • Dialysis

Background:

  • Peritoneal dialysis (PD) exhibits lower low molecular weight solute removal compared to hemodialysis.
  • Achieving Dialysis Outcome Quality Initiative targets for Kt/Vurea and creatinine clearance is challenging for many PD patients.
  • Investigations focus on enhancing small solute clearances in PD.

Purpose of the Study:

  • To review literature and new data on factors influencing small solute removal in peritoneal dialysis.
  • To evaluate methods for increasing solute clearance in PD patients.

Main Methods:

  • Literature review and analysis of recent data on solute removal determinants.
  • Assessment of residual renal function, drained dialysate volume, and peritoneal membrane diffusive capacity.

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Main Results:

  • Residual GFR is crucial for creatinine and organic acid clearance.
  • Furosemide does not impact residual GFR or solute clearances.
  • Drained dialysate volume is the primary determinant of urea removal, influenced by instillation volume and exchange frequency.
  • Peritoneal diffusive capacity can be enhanced with intraperitoneal nitroprusside, especially with icodextrin.

Conclusions:

  • Furosemide is ineffective for increasing small solute clearances in PD.
  • Increasing dialysis fluid volume and exchange frequency improve solute clearance.
  • Further research is needed on the long-term effects of peritoneal membrane manipulation with nitroprusside.