[Analysis of 94 cases of IgA nephropathy in children].
OBJECTIVE
To evaluate the clinical and pathological features of 94 children suffering from IgA nephropathy (IgAN) while estimating the prevalent situation in Hunan province.


METHODS
To summarize the annual number of hospitalized children, those with kidney diseases, those accepted biopsy, and those confirmed as IgAN in both Xiangya Hospital and Second Xiangya Hospital undertaking kidney biopsy in Hunan province during 1995 and 2004.


RESULTS
In the past 10 years, as the hospitalized population in both hospitals accrued to 9.98% each year. The rate of 7.5% was seen in those with kidney diseases. Among whom 56.3% accepted kidney biopsy and 94 of them were confirmed as IgAN. Hematuria was the main clinical presentation, seen in 71 cases, accounting to 76%, and even to 98% after excluding those with nephrotic syndrome and isolating proteinuria type of IgAN. Inflammation infiltration (91%), renal tubule degeneration (81%), and renal interstitial fibrosis (31%) were the major pathological features of 94 children, especially in nephrotic syndrome IgAN.


CONCLUSIONS
The number of children with IgAN synchronously accrues as hospitalized population, those with kidney diseases, and those by kidney biopsy. Hematuria is the major symptom. To routinely perform urine analysis and kidney biopsy in asymptomatic hematuria may improve the diagnosis. Inflammation infiltration, renal tubule degeneration, and renal interstitial fibrosis are the major pathological features in IgAN children, especially in nephrotic syndrome IgAN, probably relating to continuous proteinuria. Early control of proteinuria may delay or decrease renal tubule fibrosis.
Mao
Hua-Xiong
HX
Department of Pediatrics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
Yi
Zhu-Wen
ZW
Liang
Li
L
He
Yi-Wei
YW
Dang
Xi-Qiang
XQ
Wu
Xiao-Chun
XC
He
Xiao-Jie
XJ
Mo
Shuang-Hong
SH
D000293:Adolescent; D001707:Biopsy, Needle; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005260:Female; D005922:Glomerulonephritis, IGA / Q000150:complications / Q000453:epidemiology / Q000473:pathology*; D006417:Hematuria / Q000175:diagnosis / Q000209:etiology; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007668:Kidney / Q000473:pathology*; D008297:Male