Comparison of CKD-EPI versus MDRD and Cockcroft-Gault equations to estimate glomerular filtration rate among stable homozygous sickle cell patients in Southwest Nigeria

CL Uche, ID OsegbeNigerian Journal of Clinical Practice 2017 20(7):816-821 Background: Homozygous sickle cell patients are prone to renal damage which can be on-going in and out of crises, therefore, there is a need to monitor renal status using glomerular filtration rate. Equations to estimate GFR are readily available. Cockcroft-Gault equation is widely used, while the MDRD formula is the currently accepted equation. The CKD-EPI equation is recently being recommended but has not been validated among HbSS patients. Therefore, we aim to compare estimated GFR using CKD-EPI versus MDRD and Cockcroft-Gault equations among HbSS patients. Material and Methods: This was a cross-sectional study of stable HbSS patients. Information on their age, sex, and weight was collected. Their venous blood samples were also obtained for plasma creatinine determination which was used to calculate estimated GFR using Cockcroft-Gault, MDRD and CKD-EPI equations. Student t-test, Pearson correlation, and Bland-Altman difference plots were performed. A p-value of < 0.05 was considered to be significant. Results: One hundred and twenty patients comprising 60 HbSS patients and 60 HbAA controls participated in the study. The HbSS patients had mean ± SD age of 26±6.7years, plasma creatinine 77 ± 17umol/L, eGFR: CG 93±31.6ml/min, MDRD 124 ± 34.8ml/min/1.73m2, CKD-EPI 122 ± 25.1ml/min/1.73m2 (p
Source: Nigerian Journal of Clinical Practice - Category: Rural Health Authors: Source Type: research