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Pathogenic effects of a high peritoneal transport rate
1Department of Nephrology B, Copenhagen University Hospital, Herlev, Denmark. heaf@dadlnet.dk
Seminars in Dialysis
|June 2, 2000
Summary
Patients with high peritoneal transport (HTs) face increased health risks despite higher clearances. Current dialysis adequacy measures may not accurately reflect patient outcomes, suggesting a need for individualized treatment approaches.
Area of Science:
- Nephrology
- Internal Medicine
- Clinical Dialysis
Background:
- High peritoneal transport (HT) in patients is paradoxically linked to increased morbidity and mortality.
- This contradicts the expectation that HTs would achieve better solute clearances.
Purpose of the Study:
- To investigate the reasons behind the increased morbidity and mortality in patients with high peritoneal transport.
- To evaluate the suitability of continuous ambulatory peritoneal dialysis (CAPD) for HTs and assess current dialysis adequacy metrics.
Main Methods:
- Review of recent studies on peritoneal dialysis patients with varying transport characteristics.
- Analysis of potential complications associated with high peritoneal transport, including protein loss, ultrafiltration issues, glucose absorption, and lipid profiles.
Main Results:
- High peritoneal transport is associated with increased protein losses, hypoalbuminemia, poor ultrafiltration, fluid retention, hypertension, and atherogenic lipid profiles.
- Continuous ambulatory peritoneal dialysis (CAPD) may be unsuitable for HTs, potentially necessitating a switch to hemodialysis (HD) or nocturnal intermittent peritoneal dialysis (NIPD).
Conclusions:
- Renal and peritoneal clearances have distinct clinical implications and require separate assessment.
- Current measures of dialysis adequacy, such as total Kt/V, are insufficient for accurately describing the clinical status of patients with high peritoneal transport.