Back to Search Start Over

Comparative performance of FAS equation and Asian modified CKD-EPI in the determination of GFR in Chinese patients with CKD with the 99m Tc-DTPA plasma clearance as the reference method.

Authors :
Gao JQ
Zhao FG
Huang JM
Shao FQ
Xie P
Source :
Nefrologia [Nefrologia (Engl Ed)] 2021 Jan-Feb; Vol. 41 (1), pp. 27-33. Date of Electronic Publication: 2020 Nov 03.
Publication Year :
2021

Abstract

Background: Glomerular filtration rate (GFR) is a useful index in many clinical conditions. However, very few studies have assessed the performance of full age spectrum (FAS) equation and the Asian modified Chronic Kidney Disease-Epidemiology Collaboration (CKD-EPI) equation in the approximation of GFR in Chinese patients with chronic kidney disease.<br />Objective: This study aimed to compare the diagnostic performance of the above two creatinine-based equations.<br />Methods: A well designed single-center cross-sectional study was performed and the GFR was determined by 3 methods separately in the same day: technetium-99m-diethylene triamine pentaacetic acid ( <superscript>99m</superscript> Tc-DTPA) dual plasma sample clearance method (mGFR); FAS equation method; Asian modified CKD-EPI equation method. The gold standard method was the mGFR. Equations performance criteria considered correlation coefficient, bias, precision, accuracy and the ability to detect the mGFR less than 60ml/min/1.73m <superscript>2</superscript> .<br />Results: A total of 160 patients were enrolled. The diagnostic performance of FAS showed no significant difference in the correlation coefficient (0.89 vs 0.89), precision (15.9 vs 16.1ml/min/1.73m <superscript>2</superscript> ), accuracy (75.0% vs 76.3%) and the ability to detect the mGFR less than 60ml/min/1.73m <superscript>2</superscript> (0.94 vs 0.94) compared with the Asian modified CKD-EPI equation in all participants. The FAS showed a negative bias, while the new CKD-EPI equation showed a positive bias (-1.20 vs 1.30ml/min/1.73m <superscript>2</superscript> , P<0.001). However, they were all near to zero. In the mGFR<60ml/min/1.73m <superscript>2</superscript> subgroup and mGFR>60ml/min/1.73m <superscript>2</superscript> subgroup were consistent with that in the whole cohort. The precision and accuracy decreased when GFR>60ml/min/1.73m <superscript>2</superscript> in both equations.<br />Conclusions: The FAS equation and the Asian modified CKD-EPI equation had similar performance in determining the glomerular filtration rate in the Chinese patients with chronic kidney disease. Both the FAS equation and Asian modified CKD-EPI can be a satisfactory method and may be the most suitable creatinine-based equation.<br /> (Copyright © 2020 Sociedad Española de Nefrología. Published by Elsevier España, S.L.U. All rights reserved.)

Details

Language :
English; Spanish; Castilian
ISSN :
2013-2514
Volume :
41
Issue :
1
Database :
MEDLINE
Journal :
Nefrologia
Publication Type :
Academic Journal
Accession number :
33153776
Full Text :
https://doi.org/10.1016/j.nefro.2020.08.006