Long-term peritoneal membrane changes
1Institute of Nephrology, University of Wales College of Medicine, Cardiff, Heath Park, Wales.
Advances in Renal Replacement Therapy
|November 10, 2000
Summary
Long-term peritoneal dialysis (PD) can cause structural changes in the peritoneal membrane, leading to altered function. Research suggests biocompatible fluids and reduced inflammation may improve outcomes.
Area of Science:
- Nephrology
- Membrane Biology
- Biomaterials
Background:
- Long-term peritoneal dialysis (PD) is linked to progressive structural alterations in the peritoneal membrane.
- These changes include sub-mesothelial thickening and vascular morphology changes, worsening with PD duration.
Purpose of the Study:
- To investigate the structural and functional changes in the peritoneal membrane associated with long-term PD.
- To identify potential contributing factors like dialysate composition and peritonitis.
Main Methods:
- Review of existing evidence on PD-associated peritoneal membrane changes.
- Analysis of the relationship between structural alterations and functional transport changes.
- Consideration of diagnostic monitoring methods (serial function tests, effluent markers, biopsies).
Main Results:
- PD duration correlates with increased membrane thickening and altered blood vessel morphology.
- These structural changes are associated with increased small solute transport and reduced ultrafiltration.
- Dialysate components, particularly glucose and its degradation products, are implicated in these changes.
Conclusions:
- Long-term PD induces structural and functional changes in the peritoneal membrane.
- Peritonitis and dialysate composition are likely contributors to these alterations.
- Future strategies focusing on biocompatible fluids and inflammation reduction may improve PD outcomes and patient survival.
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