Nephrology (Carlton, Vic.) · 2023
Value of the modified semiquantitative classification in predicting outcomes in children with Henoch-Schönlein purpura nephritis.
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Wang Yuhao, Jiao Jia, Wan Junli, Wu Daoqi, Zhang Gaofu, Chan Han, Wang Mo, Chan Xuelan, Yang Haiping, Li Qiu
Аннотация
BACKGROUND: The modified semiquantitative classification (SQC) is a new pathological classification for Henoch-Schönlein purpura nephritis (HSPN), and its prognostic value with regard to the outcomes of HSPN is unclear.
METHODS: We performed a retrospective review of 249 patients with biopsy-proven HSPN admitted to the Children's Hospital of Chongqing Medical University. In addition to the International Study of Kidney Disease in Children (ISKDC) classification, renal biopsy specimens were also reevaluated according to the SQC.
RESULTS: During the follow-up period of 2.9 (1.0-6.9) years, 14 (5.6%) patients reached the poor outcome at the end of follow-up. The SQC activity and chronicity indexes were positively correlated with the clinical manifestations, conventional pathology grades, and 24-h urinary protein (24hUP). The difference in the areas under the curve between the total biopsy SQC scores and ISKDC classification was 0.12 (p = .001, 95% CI: 0.0485-0.192). In the receiver operating characteristic (ROC) curve analysis of 1-year, 3-year, and 5-year poor outcomes and total biopsy SQC scores, a total biopsy score ≥10 was associated with a higher risk of an adverse outcome.
CONCLUSION: Our study suggests that the SQC indexes are clearly correlated with the clinical and pathological findings of HSPN. The SQC is more sensitive than ISKDC classification for the prediction of the long-term outcomes of HSPN in children.
METHODS: We performed a retrospective review of 249 patients with biopsy-proven HSPN admitted to the Children's Hospital of Chongqing Medical University. In addition to the International Study of Kidney Disease in Children (ISKDC) classification, renal biopsy specimens were also reevaluated according to the SQC.
RESULTS: During the follow-up period of 2.9 (1.0-6.9) years, 14 (5.6%) patients reached the poor outcome at the end of follow-up. The SQC activity and chronicity indexes were positively correlated with the clinical manifestations, conventional pathology grades, and 24-h urinary protein (24hUP). The difference in the areas under the curve between the total biopsy SQC scores and ISKDC classification was 0.12 (p = .001, 95% CI: 0.0485-0.192). In the receiver operating characteristic (ROC) curve analysis of 1-year, 3-year, and 5-year poor outcomes and total biopsy SQC scores, a total biopsy score ≥10 was associated with a higher risk of an adverse outcome.
CONCLUSION: Our study suggests that the SQC indexes are clearly correlated with the clinical and pathological findings of HSPN. The SQC is more sensitive than ISKDC classification for the prediction of the long-term outcomes of HSPN in children.