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KMID : 0359920110300060638
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Korean Journal of Nephrology
2011 Volume.30 No. 6 p.638 ~ p.646
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Significance of Peritoneal Protein Clearance in Peritoneal Dialysis Patients
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Yi Sul-Hee
Lee Ho-Young
Kim Jung-Hyun
Jung Jae-Myun
Kwon Soon-Hyo
Jeon Jin-Seok
Han Dong-Cheol
Noh Hyun-Jin
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Abstract
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Purpose: It has been reported recently that peritoneal protein clearance (Pcl) is a marker of endothelial dysfunction and cardiovascular disease in peritoneal dialysis patients. We evaluated whether baseline or longitudinal follow-up Pcl is a factor to consider in predicting the outcome in peritoneal dialysis patients for the follow-up period.
Methods: Patients who initiated continuous ambulatory peritoneal dialysis at our center from September 1994 to January 2006 and had a baseline peritoneal equilibration test, measurement of dialysis adequacy, and 24-h dialysate Pcl (24hr dialysate protein loss/ [serum albumin/0.4783]) were included. Demography, comorbidities, and biochemical data were retrospectively collected. Follow-up was until death or the end of the period studied (November 2009).
Results: A total of 203 patients (56% men, mean age 55.0±12.5; 55.2% with diabetes; 22.2% with cardiovascular disease) were included. The mean follow up period was 38 months (3-170 months). Baseline Pcl was 128.2 ml/day. Follow up data of Pcl were not changed from baseline period. Cox’s analysis revealed the predictors of mortality (and technical failure) were age and diabetes mellitus but not dialysate/plasma creatinine ratio (D/Pcr) and Pcl. On multivariate analysis, Pcl was negatively correlated with serum albumin and triglyceride and positively correlated with D/Pcr and peritoneal creatinine clearance.
Conclusion: Our study showed that the changes in Pcl over time were not significant from baseline up to 53 months. Neither baseline nor mean Pcl during the follow-up period were independent predictors for technical or patient survival.
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KEYWORD
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Peritoneal fluid, Protein, Peritoneal dialysis, Treatment outcome
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