| Estimation of residual glomerular filtration rate in peritoneal dialysis patients using cystatin C: comparison with 51Cr-EDTA clearance. | |
| | |
MedLine Citation:
|
PMID: 21441400 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND: Measuring glomerular filtration rate (GFR) is an important assessment in peritoneal dialysis patients. In clinical practice, it is commonly measured by calculating the mean of the urinary clearance of urea and creatinine (GFR(UrCl)) but this process is time consuming and unreliable. We wished to compare several estimates of GFR including residual GFR estimated from cystatin C (GFR(CysC)) using a published equation (Hoek), GFR(UrCl) and (51)Cr-ethylenediaminetetraacetic acid (EDTA) clearance, in peritoneal dialysis patients. METHODS: GFR(CysC), GFR(UrCl) and (51)Cr-EDTA clearance were measured in 28 patients undergoing peritoneal dialysis in a single dialysis unit. RESULTS: GFR(CysC) was related to GFR(UrCl) (Spearman's rank correlation coefficient r(s) = 0.44; P = 0.0185) and to (51)Cr-EDTA clearance (r(s) = 0.48; P = 0.0099). GFR(CysC) values were significantly (P = 0.0077) lower than (51)Cr-EDTA clearance results (mean bias -19.7%). However, GFR(CysC) did not differ significantly (P > 0.05) from GFR(UrCl). CONCLUSIONS: GFR(CysC) is related to GFR(UrCl) but has a significant negative bias against (51)Cr-EDTA. Given the known limitations of (51)Cr-EDTA in estimating GFR in renal failure, this study provides additional validation suggesting that cystatin C-estimated rGFR (GFR(CysC)) gives a reasonable estimation of GFR without the clinical problems associated with 24 h urine collections. |
| | |
Authors:
|
Joanne L Carter; Catherine E Lane; Stanley L Fan; Edmund J Lamb |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-3-25 |
Journal Detail:
|
Title: Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association Volume: - ISSN: 1460-2385 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
|
Created Date: 2011-3-28 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8706402 Medline TA: Nephrol Dial Transplant Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
1Department of Clinical Biochemistry, East Kent Hospitals University NHS Foundation Trust, Canterbury, Kent, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Reproducibility of albuminuria in type 2 diabetic subjects. Findings from the Renal Insufficiency An...
Next Document: Mineral abnormalities and long-term graft function in pediatric renal transplant recipients: a role ...