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The Comparative Effectiveness of Intravenous Immunoglobulin and Corticosteroids in Kawasaki Disease: A Nationwide
Sujin Lee1,2, Seeun Choi1, Kiyon Rhew1
1College of Pharmacy, Dongduk Women's University, Seoul 02748, Republic of Korea.
Insights
Corticosteroids (CSs) combined with aspirin are linked to a higher risk of coronary artery aneurysm (CAA) in children with Kawasaki disease (KD) compared to intravenous immunoglobulin (IVIg) and aspirin. IVIg remains the preferred first-line treatment for KD.
Area of Science:
- Pediatric Rheumatology
- Cardiovascular Medicine
- Pharmacology
Background:
- Kawasaki disease (KD) is a critical pediatric vasculitis, with coronary artery aneurysm (CAA) as its most severe complication.
- Intravenous immunoglobulin (IVIg) plus aspirin (ASA) is the standard KD treatment, but concerns drive interest in corticosteroids (CSs) as alternatives.
- This study evaluates the comparative effectiveness of IVIg and CSs in managing pediatric KD.
Purpose of the Study:
- To compare the incidence of coronary artery aneurysm (CAA) in pediatric patients with Kawasaki disease (KD) treated with corticosteroids (CSs) versus intravenous immunoglobulin (IVIg).
- To assess secondary outcomes, including other cardiovascular complications in KD patients receiving CSs compared to IVIg.
- To inform first-line treatment strategies for Kawasaki disease.
Main Methods:
- Retrospective analysis of South Korean Health Insurance Review and Assessment Service (HIRA) data (2017-2020).
- Inclusion of pediatric patients under five diagnosed with KD and treated with either IVIg + ASA or CSs + ASA.
- Application of propensity score weighting and Cox proportional hazards models to compare outcomes, focusing on CAA incidence and cardiovascular complications.
Main Results:
- The incidence of coronary artery aneurysm (CAA) was significantly higher in the corticosteroid (CSs) group (6.72%) compared to the intravenous immunoglobulin (IVIg) group (1.86%) (HR = 3.70; 95% CI: 1.96-6.97; p < 0.0001).
- Cardiovascular complications were also more frequent in the CSs group (HR = 2.87; 95% CI: 1.96-6.97; p < 0.0001).
- Propensity score weighting adjusted for potential confounding factors, strengthening the observed associations.
Conclusions:
- Corticosteroids (CSs) plus aspirin are associated with an increased risk of coronary artery aneurysm (CAA) and cardiovascular complications in pediatric Kawasaki disease (KD) patients compared to IVIg plus aspirin.
- CSs should not replace IVIg as the first-line therapy for KD, although they may serve as an adjunct for IVIg-resistant cases.
- Further research into alternative strategies, such as reduced-dose IVIg with adjunctive therapies, is warranted for optimal KD management.
Abstract:
Background: Kawasaki disease (KD) is an acute type of vasculitis in children, with coronary artery aneurysm (CAA) being its most serious complication. Intravenous immunoglobulin (IVIg) with acetylsalicylic acid (ASA) is the standard treatment, but concerns about IVIg's availability and adverse effects have led to interest in corticosteroids (CSs) as an alternative. This study compares the clinical outcomes of IVIg and CSs in KD patients. Methods: Using South Korean Health Insurance Review and Assessment Service (HIRA) data from 2017 and 2020, we identified children under five diagnosed with KD and treated with IVIg and ASA (the IVIg group) or CSs and ASA (the CS group). Propensity score weighting was applied. The primary outcome was the incidence of CAA, and the secondary outcome included cardiovascular complications. Cox proportional hazards models were used to estimate the hazard ratios (HRs) with 95% confidence intervals (CIs). Results: After adjustment, the CAA incidence was higher in the CS group (6.72%) than in the IVIg group (1.86%) (HR = 3.70; 95% CI: 1.96-6.97; p < 0.0001). Cardiovascular complications were also more frequent in the CS group (HR = 2.87; 95% CI: 1.96-6.97; p < 0.0001). Conclusions: The combination treatment, of CSs and ASA, was associated with a higher risk of CAA and cardiovascular complications compared to that when using IVIg in pediatric KD patients. While CSs may be beneficial as an adjunct therapy in IVIg-resistant cases, they should not replace IVIg as a first-line treatment. Alternative strategies, such as reduced-dose IVIg with adjunctive therapies, should be explored.
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