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Risk Factors for Renal Involvement in Childhood Henoch-Schonlein Purpura (IgA Vasculitis)
Shuhui Min1, Xi Chen1, Danfeng Wang1
1Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Jiangsu, China.
Insights
Identifying risk factors for kidney damage in children with Immunoglobulin A (IgA) vasculitis is crucial. Older age, gastrointestinal bleeding, and elevated D-dimer levels are key indicators of renal injury in Henoch-Schönlein purpura.
Area of Science:
- Pediatrics
- Nephrology
- Rheumatology
Background:
- Immunoglobulin A (IgA) vasculitis, also known as Henoch-Schönlein purpura (HSP), is a common systemic vasculitis in children.
- Renal involvement is a significant complication, potentially leading to long-term kidney damage.
- Identifying predictive factors for renal injury is essential for timely intervention.
Purpose of the Study:
- To investigate the risk factors associated with renal involvement in pediatric patients diagnosed with IgA vasculitis.
- To identify specific clinical and laboratory parameters that predict the development of nephritis in HSP.
Main Methods:
- A hospital-based retrospective cohort study was conducted.
- Data from 117 children (aged ≤16 years) with primary IgA vasculitis were analyzed.
- Univariate and multivariate logistic regression analyses were performed to identify independent risk factors.
Main Results:
- 41.9% of the patients (49 out of 117) developed renal injury.
- Univariate analysis indicated associations between renal injury and age, gastrointestinal bleeding (GIB), duration, white blood cell count, D-dimer, and platelet count.
- Multivariate analysis identified elevated D-dimer level, older age, and GIB as independent risk factors for renal damage.
Conclusions:
- Older age, presence of gastrointestinal bleeding, and elevated D-dimer levels are significant independent risk factors for renal involvement in children with IgA vasculitis.
- These findings can aid in early risk stratification and management of pediatric patients with HSP to prevent kidney complications.
- Further prospective studies are warranted to validate these risk factors.
Abstract:
This study was designed to investigate the risk factors for renal involvement in children with immunoglobulin A (IgA) vasculitis. It is a hospital-based retrospective cohort study with a sample size of 117 children aged ≤16 years with primary IgA vasculitis. Out of 117 patients, 49 (41.9%) developed renal injury. Univariate analysis revealed that age, gastrointestinal bleeding (GIB), time of duration, white blood cell count, D-dimer, and platelet count were all associated with renal injury in the patients with HSP. These variables were included in the multivariate logistic regression analysis. Results showed that elevated D-dimer level, older age, and GIB were independent risk factors for renal damage in patients with IgA vasculitis. Key Words: Henoch-schonlein purpura, Immunoglobulin A vasculitis, Nephritis, D-dimer, Risk factors.
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