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Updated: Jun 30, 2025
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Published on: July 19, 2018
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Peritoneal Phosphate Clearance: Determinants and Association With Mortality.
Jinping Li1, Wenyu Zhang1, Xichao Wang1
1Department of Nephrology, Tianjin First Central Hospital, Tianjin, China.
Seminars in Dialysis
|March 20, 2024
Summary
Higher peritoneal phosphate clearance (PPC) in peritoneal dialysis (PD) patients is linked to lower mortality. Factors like CAPD modality and high transport status positively influence PPC, while BMI and nPNA negatively correlate.
Area of Science:
- Nephrology
- Dialysis
- Clinical Research
Background:
- Hyperphosphatemia management in peritoneal dialysis (PD) is crucial.
- Factors influencing peritoneal phosphate clearance (PPC) require further understanding.
Purpose of the Study:
- To investigate factors affecting PPC in PD patients.
- To explore the relationship between PPC and mortality in PD patients.
Main Methods:
- Cross-sectional and prospective observational study.
- 485 PD patients enrolled, divided into high and low PPC groups.
- All-cause mortality evaluated over a minimum 3-month follow-up.
Main Results:
- Higher PPC group demonstrated lower mortality.
- Multivariate analysis identified positive correlations between PPC and fast transport status, effluent dialysate volume, continuous ambulatory PD (CAPD), and effluent protein.
- Negative correlations found between PPC and body mass index (BMI) and normalized protein equivalent of total nitrogen appearance (nPNA).
Conclusions:
- Increased PPC is associated with reduced all-cause mortality in PD patients.
- CAPD, fast transport, higher effluent volume/protein, lower BMI, and lower nPNA are linked to higher PPC.
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