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- Title
First-year estimated glomerular filtration rate variability after pre-end-stage renal disease program enrollment and adverse outcomes of chronic kidney disease.
- Authors
Tsai, Ching-Wei; Huang, Han-Chun; Chiang, Hsiu-Yin; Chung, Chih-Wei; Chiu, Hsien-Tsai; Liang, Chih-Chia; Yu, Tsung; Kuo, Chin-Chi
- Abstract
Background Scarce evidence associates the first-year estimated glomerular filtration rate (eGFR) variability and longitudinal change scales concomitantly to the risk of developing end-stage renal disease (ESRD), acute coronary syndrome (ACS) and death following pre-ESRD program enrollment in chronic kidney disease (CKD). Methods We conducted a prospective cohort study of 5092 CKD patients receiving multidisciplinary care between 2003 and 2015 with careful ascertainment of ESRD, ACS and death during the follow-up. First-year eGFR variability and longitudinal change scales that were based on all first-year eGFR measurements included coefficient of variation of eGFR (eGFR-CV), percent change (eGFR-PC), absolute difference (eGFR-AD), slope (eGFR-slope) and area under the curve (AUC). Results A total of 786 incident ESRD, 292 ACS and 410 death events occurred during the follow-up. In the multiple Cox regression, the fully adjusted hazard ratios (HRs) of progression to ESRD for each unit change in eGFR-CV, eGFR-PC, eGFR-AD, eGFR-slope, eGFR-AUC were 1.03 [95% confidence interval (CI) 1.02–1.04], 1.04 (1.03–1.04), 1.16 (1.14–1.18), 1.16 (1.14–1.17) and 1.04 (1.03–1.04), respectively. The adjusted HRs for incident ESRD comparing the extreme with the reference quartiles of eGFR-CV, eGFR-PC, eGFR-AD, eGFR-slope and eGFR-AUC were 2.67 (95% CI 2.11–3.38), 8.34 (6.33–10.98), 19.08 (11.89–30.62), 13.08 (8.32–20.55) and 6.35 (4.96–8.13), respectively. Similar direction of the effects on the risk of developing ACS and mortality was observed. In the 2 × 2 risk matrices, patients with the highest quartile of eGFR-CV and concomitantly with the most severely declining quartiles of any other longitudinal eGFR change scale had the highest risk of all outcomes. Conclusions The dynamics of eGFR changes, both overall variability and longitudinal changes, over the first year following pre-ESRD program enrollment are crucial prognostic factors for the risk of progression to ESRD, ACS and deaths among patients with CKD. A risk matrix combining the first-year eGFR variability and longitudinal change scales following pre-ESRD enrollment is a novel approach for risk characterization in CKD care. Randomized trials in CKD may be required to ascertain comparable baseline eGFR dynamics.
- Subjects
CHRONIC kidney failure; GLOMERULAR filtration rate; KIDNEY diseases; ACUTE coronary syndrome
- Publication
Nephrology Dialysis Transplantation, 2019, Vol 34, Issue 12, p2066
- ISSN
0931-0509
- Publication type
Article
- DOI
10.1093/ndt/gfy200