Korean J Nephrol.
2007 Sep;26(5):590-600.
The Prognostic Factors for Long-term Maintenance of CAPD: Importance of Early %lean Body Mass and Peritonitis
- Affiliations
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- 1Department of Internal Medicine, Yonsei University, College of Medicine, The Institute of Kidney Disease, Yonsei University, Seoul, Korea. khchoi6@yumc.yonsei.ac.kr
Abstract
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PURPOSE: Lower technical survival rate of CAPD compared to hemodialysis is still concerned. We aimed to evaluate the characteristics of long-term CAPD survivors in pre-dialysis and early phase of CAPD for estimating predictive markers for long-term maintenance of CAPD.
METHODS
We retrospectively reviewed records of long-term CAPD patients (LT group, >100 months, n=51) and short-term patients (ST group, <50 months, n=102) who were age-sex matched with the LT group in a 2:1 ratio. Clinical characteristics, serial biochemical parameters, Kt/V, and peritoneal equilibrium test (PET) within 1 month and at 1 year of CAPD were analyzed.
RESULTS
LT group had lower prevalence of diabetes, higher pre-dialysis serum albumin, creatinine, % LBM at 1 month of CAPD and lower peritonitis rate compared to ST group. However, dialysis adequacy, residual renal function and transport status showed no differences between two groups at 1 month and 1 year of CAPD. In multivariate analysis, diabetes, peritonitis rate and %LBM were independent risk factors for failure of long-term maintenance of CAPD. Moreover, patients with high %LBM were more likely to be in LT group, had longer CAPD maintenance duration, and lower peritonitis rate. In multiple linear regression analysis for risk factors associated with peritonitis, %LBM at 1 month and pre-dialysis serum albumin were independently associated with peritonitis rate.
CONCLUSION
The present study revealed that non-diabetic history, higher %LBM and lower peritonitis rate are important predictors of long-term CAPD survival. Also, poor nutritional status assessed by %LBM and serum albumin level was independently associated with high frequency of peritonitis.
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