期刊
NEPHROLOGY DIALYSIS TRANSPLANTATION
卷 38, 期 4, 页码 884-893出版社
OXFORD UNIV PRESS
DOI: 10.1093/ndt/gfac304
关键词
lupus nephritis; prognosis; remission; renal flare; response
This study found that repeated renal flares in lupus nephritis are associated with a lower response to therapy and an adverse prognosis for kidney function and patient survival.
Background Repeated renal flares in lupus nephritis (LN) have been associated with worse long-term kidney function. This study aimed to assess the impact of repeated LN flares in response to therapy, kidney and patient prognosis. Methods All patients from a biopsy-proven LN cohort between 2008 and 2018 were segregated into three groups according to the number of LN flares when they entered our cohort: first LN flare, second LN flare or third LN flare. The following outcomes were evaluated by unadjusted and adjusted time-to-event analyses: complete and partial response, disease relapses, progression to decline of 30% of the estimated glomerular filtration rate (eGFR), doubling of serum creatinine, end-stage kidney disease and patient survival. Results A total of 441 patients were included: 257 (58%) in their first LN flare, 102 (23%) in their second LN flare and 82 (19%) in their third LN flare. There were significant differences in LN flare presentation in age, eGFR, serum albumin, pyuria and hematuria among groups. The National Institutes of Health chronicity indices and the percentage of patients with vascular lesions were higher in groups at progressive LN flares. In the adjusted analyses, complete and partial response rates decreased, as well as kidney and patient survival, at a progressive number of LN flares. No differences in the dynamic course of all surveillance laboratory parameters were observed in the first year after initial therapy among LN flare groups. Conclusions A progressive number of LN flares is associated with a lower response to therapy and an adverse prognosis for kidney function and patient survival.
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