儿童IgA血管炎肾炎伴不同比例新月体形成的临床和病理特征分析  

Clinical and pathological features of children with immunoglobulin A vasculitis with nephritis accompanied by different proportions of crescent formation

作　　者：白梦刻 王龙[1] 李航 苏杭[1] 杨月丽 杨晓青[1] BAI Meng-Ke;WANG Long;LI Hang;SU Hang;YANG Yue-Li;YANG Xiao-Qing(Department of Pediatrics,First Affiliated Hospital of Henan University of Chinese Medicine,Zhengzhou 450000,China)

机构地区：[1]河南中医药大学第一附属医院儿科/河南中医药大学儿科医学院,河南郑州450000 [2]河南中医药大学第一附属医院检验科,河南郑州450000

出　　处：《中国当代儿科杂志》2024年第12期1329-1334,共6页Chinese Journal of Contemporary Pediatrics

基　　金：国家自然科学基金面上项目(82305310);河南省科技研发计划联合基金项目(232301420090);河南中医药大学科研苗圃工程项目(MP2024-19)。

摘　　要：目的探讨IgA血管炎肾炎(immunoglobulin A vasculitis with nephritis,IgAVN)患儿不同比例新月体形成对临床表现和病理特征的影响。方法按新月体的比例分组并比较,无新月体组75例、≤25%新月体组156例、>25%新月体组33例。结果与无新月体组比较,另两组患儿24 h尿蛋白、尿免疫球蛋白(immunoglobulin G,IgG)/肌酐、尿红细胞、纤维蛋白原、中性粒细胞/淋巴细胞比值升高(P<0.05),血清IgG下降,出现低白蛋白状态、高凝状态、病理分级Ⅲ级+Ⅳ级、弥漫性系膜增生占比增高(P<0.05)。与≤25%新月体组相比,>25%新月体组24 h尿蛋白、尿红细胞、纤维蛋白原升高,血清IgG、肾小球滤过率降低,弥漫性系膜增生、肾小管萎缩或间质纤维化占比升高(P<0.05)。>25%新月体组的总胆固醇、甘油三酯、尿素氮、血肌酐水平高于无新月体组(P<0.05)。血清IgG下降、高凝状态、24 h尿蛋白升高、弥漫性系膜增生和肾小管间质慢性病变是新月体比例增多的影响因素(P<0.05)。结论IgAVN患儿中新月体比例越多,各项实验室指标异常和肾小管间质慢性病变更重,因此细分新月体比例可以更好地指导临床治疗。Objective To investigate the impact of the different proportions of crescent formation on clinical manifestations and pathological features in children with immunoglobulin A vasculitis with nephritis(IgAVN).Methods The children with IgAVN were divided into no-crescent group(75 children),≤25%crescent group(156 children),and>25%crescent group(33 children).Results Compared with the no-crescent group,the other two groups had significant increases in 24-hour urinary protein,urinary immunoglobulin G(IgG)/creatinine ratio,urine red blood cell count,fibrinogen,and neutrophil-lymphocyte ratio,a significant reduction in serum IgG,and a significantly higher proportion of children with low albumin and hypercoagulability,pathological grade III+IV or diffuse mesangial proliferation(P<0.05).Compared with the≤25%crescent group,the>25%crescent group had significant increases in 24-hour urinary protein,urine red blood cell count,and fibrinogen,significant reductions in serum IgG and glomerular filtration rate,and a significantly higher proportion of children with diffuse mesangial proliferation,tubular atrophy or interstitial fibrosis(P<0.05).Compared with the no-crescent group,the>25%crescent group had significantly higher levels of total cholesterol,triglycerides,urea nitrogen,and serum creatinine(P<0.05).A reduction in serum IgG,hypercoagulability,an increase in 24-hour urinary protein,diffuse mesangial proliferation,and chronic tubulointerstitial lesions were influencing factors for the increase in the proportion of crescent formation(P<0.05).Conclusions For children with IgAVN,the higher proportion of crescent formation is associated with greater abnormalities in laboratory markers and more severe chronic tubulointerstitial lesions,and thus a detailed analysis of the proportion of crescent formation can better guide clinical treatment.

关 键 词：IgA血管炎肾炎 新月体 临床表现 病理特征 儿童 

分 类 号：R726.9[医药卫生—儿科]