Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation

AbstractPurpose Whether different crescentic proportions determine the progression of IgA nephropathy (IgAN) with crescents in less than 50% of glomeruli remains controversial. We aimed to evaluate the relationship between different proportions of crescents and kidney outcomes in IgAN with partial c...

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Main Authors: Dingxin Di, Lin Liu, Ying Wang, Yue Yang, Shimin Jiang, Wenge Li
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Renal Failure
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/0886022X.2023.2226257
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author Dingxin Di
Lin Liu
Ying Wang
Yue Yang
Shimin Jiang
Wenge Li
author_facet Dingxin Di
Lin Liu
Ying Wang
Yue Yang
Shimin Jiang
Wenge Li
author_sort Dingxin Di
collection DOAJ
description AbstractPurpose Whether different crescentic proportions determine the progression of IgA nephropathy (IgAN) with crescents in less than 50% of glomeruli remains controversial. We aimed to evaluate the relationship between different proportions of crescents and kidney outcomes in IgAN with partial crescent formation.Methods Patients diagnosed as IgAN, having at least two crescents and in less than 50% of glomeruli, were categorized into three groups: Group I (crescents in ≤10% of glomeruli), Group II (10%< crescents ≤25% of glomeruli) and Group III (crescents >25% of glomeruli). Baseline clinicopathological parameters were evaluated. The kidney endpoint was a composite of a ≥ 40% decline in the initial estimated glomerular filtration rate, end-stage kidney disease, and kidney disease-related death.Results Of 183 IgAN patients with crescents in less than 50% of glomeruli, baseline 24-hour urinary protein and immunosuppressive treatment varied among the three groups (p < 0.05). During a median follow-up of 57 months (interquartile range 28–86), 50 (27.3%) patients reached the composite outcome. Kaplan–Meier survival analysis revealed that kidney survival in Group II (p = 0.049) and Group III (p = 0.008) was significantly shorter than in Group I, with no significant difference between Group II and III (p = 0.2). After adjusting for clinical factors and MEST score based on the multivariate Cox regression analysis, a crescent proportion >10% (HR = 3.431, 95% CI 1.067–11.03, p = 0.039) was predictive of time to unfavorable kidney outcome, with model adjustments improving predictability (c-index: 0.817).Conclusion The proportion of crescents reaching 10% of glomeruli in IgAN was identified as an independent risk factor for kidney survival.
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spelling doaj.art-013dc03f6201439abdfb5a8b50b9e2542023-10-17T09:23:24ZengTaylor & Francis GroupRenal Failure0886-022X1525-60492023-12-0145110.1080/0886022X.2023.2226257Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formationDingxin Di0Lin Liu1Ying Wang2Yue Yang3Shimin Jiang4Wenge Li5China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences &amp; Peking Union Medical College, Beijing, P.R. ChinaDepartment of Nephrology, China-Japan Friendship Hospital, Beijing, P.R. ChinaChina-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences &amp; Peking Union Medical College, Beijing, P.R. ChinaDepartment of Nephrology, China-Japan Friendship Hospital, Beijing, P.R. ChinaDepartment of Nephrology, China-Japan Friendship Hospital, Beijing, P.R. ChinaDepartment of Nephrology, China-Japan Friendship Hospital, Beijing, P.R. ChinaAbstractPurpose Whether different crescentic proportions determine the progression of IgA nephropathy (IgAN) with crescents in less than 50% of glomeruli remains controversial. We aimed to evaluate the relationship between different proportions of crescents and kidney outcomes in IgAN with partial crescent formation.Methods Patients diagnosed as IgAN, having at least two crescents and in less than 50% of glomeruli, were categorized into three groups: Group I (crescents in ≤10% of glomeruli), Group II (10%< crescents ≤25% of glomeruli) and Group III (crescents >25% of glomeruli). Baseline clinicopathological parameters were evaluated. The kidney endpoint was a composite of a ≥ 40% decline in the initial estimated glomerular filtration rate, end-stage kidney disease, and kidney disease-related death.Results Of 183 IgAN patients with crescents in less than 50% of glomeruli, baseline 24-hour urinary protein and immunosuppressive treatment varied among the three groups (p < 0.05). During a median follow-up of 57 months (interquartile range 28–86), 50 (27.3%) patients reached the composite outcome. Kaplan–Meier survival analysis revealed that kidney survival in Group II (p = 0.049) and Group III (p = 0.008) was significantly shorter than in Group I, with no significant difference between Group II and III (p = 0.2). After adjusting for clinical factors and MEST score based on the multivariate Cox regression analysis, a crescent proportion >10% (HR = 3.431, 95% CI 1.067–11.03, p = 0.039) was predictive of time to unfavorable kidney outcome, with model adjustments improving predictability (c-index: 0.817).Conclusion The proportion of crescents reaching 10% of glomeruli in IgAN was identified as an independent risk factor for kidney survival.https://www.tandfonline.com/doi/10.1080/0886022X.2023.2226257IgA nephropathycrescentclinicopathological characteristicsprognosis
spellingShingle Dingxin Di
Lin Liu
Ying Wang
Yue Yang
Shimin Jiang
Wenge Li
Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation
Renal Failure
IgA nephropathy
crescent
clinicopathological characteristics
prognosis
title Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation
title_full Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation
title_fullStr Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation
title_full_unstemmed Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation
title_short Crescents proportions above 10% are associated with unfavorable kidney outcomes in IgA nephropathy patients with partial crescent formation
title_sort crescents proportions above 10 are associated with unfavorable kidney outcomes in iga nephropathy patients with partial crescent formation
topic IgA nephropathy
crescent
clinicopathological characteristics
prognosis
url https://www.tandfonline.com/doi/10.1080/0886022X.2023.2226257
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