Cardiology Research, ISSN 1923-2829 print, 1923-2837 online, Open Access
Article copyright, the authors; Journal compilation copyright, Cardiol Res and Elmer Press Inc
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Original Article

Volume 17, Number 6, December 2026, pages 616-629


Efficacy and Safety of Adjunctive Corticosteroids in Children With Kawasaki Disease: A Systematic Review and Meta-Analysis of Randomized Trials

Figures

↓  Figure 1. PRISMA flow diagram of study selection. PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses.
Figure 1.
↓  Figure 2. Risk-of-bias assessment of the included randomized controlled trials.
Figure 2.
↓  Figure 3. Forest plot of change in C-reactive protein levels with adjunctive corticosteroid therapy versus usual care. CI: confidence interval; MD: mean differences; SD: standard deviation.
Figure 3.
↓  Figure 4. Leave-one-out sensitivity analysis for change in C-reactive protein levels. CI: confidence interval; MD: mean differences; SD: standard deviation.
Figure 4.
↓  Figure 5. Forest plot of fever duration with adjunctive corticosteroid therapy versus usual care. CI: confidence interval; MD: mean differences; SD: standard deviation.
Figure 5.
↓  Figure 6. Forest plot of intravenous immunoglobulin resistance with adjunctive corticosteroid therapy versus usual care. RR: risk ratio; CI: confidence interval.
Figure 6.
↓  Figure 7. Forest plot of serum albumin with adjunctive corticosteroid therapy versus usual care.
Figure 7.
↓  Figure 8. Forest plot of white blood cell counts with adjunctive corticosteroid therapy versus usual care.
Figure 8.

Table

↓  Table 1. Baseline Characteristics of Included Studies
 
StudyArmsSample sizeAge, mean (SD)Male, n (%)C-reactive protein (mg/L), mean (SD)White blood cell count (× 103/µL), mean (SD)Platelet count (× 104/µL), mean (SD)ESR (mm/h), mean (SD)Albumin (g/dL), mean (SD)LAD z-score, mean (SD)LAD z-score, mean (SD)LMCA z-score, mean (SD)
Tx: treatment; SD: standard deviation; CRP: C-reactive protein; WBC: white blood cell count; ESR: erythrocyte sedimentation rate; LAD z-score: left anterior descending coronary artery z-score; LMCA z-score: left main coronary artery z-score; NA: not available; ; Albumin: serum albumin; Male n (%): number and percentage of male participants.
Lin et al, 2026 [14]Standard Tx + corticosteroids1,6042.7 (1.8)973 (60.7)NANANANANA1.1 (1.2)0.8 (1.1)0.9 (1.2)
Standard Tx1,6042.7 (1.9)967 (60.3)NANANANANA1 (1.2)0.8 (1.1)0.8 (1.1)
Kobayashi et al, 2012 [15]Standard Tx + corticosteroids1212.6 (2.3)67 (55.4)93 (54.1)15.4 (4.9)27.4 (8.1)NANA1.6 (0.8)1.4 (0.9)1.6 (0.6)
Standard Tx1212.5 (2.1)68 (56.2)88 (42.2)15.6 (4.7)28.9 (8.9)NANA1.7 (0.6)1.6 (0.9)1.7 (0.6)
Ogata et al, 2012 [22]Standard Tx + corticosteroids223.4 (0.1)11 (50)87 (25.9)13.5 (2.9)26.8 (3.3)NA3.7 (0.2)1.4 (1.3)1.5 (1.2)1.1 (1.4)
Standard Tx263.5 (0.4)13 (50)98 (25.9)15 (3.6)31.5 (6.7)NA3.7 (0.3)1.5 (1.2)2.2 (1.3)1.3 (1.5)
Newburger et al, 2007 [16]Standard Tx + corticosteroids1012.9 (2.7)63 (62.4)72 (79.3)13.5 (4.6)39.4 (13.8)65.5 (33.3)3.3 (0.6)1.1 (1.6)1.1 (1.5)0.8 (1.0)
Standard Tx982.9 (2.1)61 (62.2)68 (108.9)12.9 (5.3)39.3 (14.7)67.0 (39.3)3.3 (0.6)1.1 (1.5)1.2 (1.5)0.9 (1.2)
Inoue et al, 2006 [12]Standard Tx + corticosteroids902.4 (1.9)51 (56.7)89 (49)13.9 (3.9)35.1 (9.2)NA4 (0.4)NANANA
Standard Tx882.3 (1.7)51 (58)91 (51)14.7 (4.5)35.8 (9.9)NA4 (0.4)NANANA
Sundel et al, 2003 [23]Standard Tx + corticosteroids185.7 (3.3)12 (66.7)9.2 (4.6)13.6 (4.8)40.1 (13.6)74.5 (25.6)3.2 (0.4)NANANA
Standard Tx215.4 (2.9)15 (71.4)11.9 (5.9)13.7 (4.9)35 (11)77 (23.6)2.9 (0.6)NANANA
Wang et al, 2020 [24]Standard Tx + corticosteroids402.1 (1.8)28 (70)123.1 (69.8)18.7 (6.9)40.8 (17.7)NA9.5 (1.3)NANANA
Standard Tx401.8 (1.2)28 (70)100.4 (56.3)16.1 (6.9)44.7 (21.1)NA9.3 (1.1)NANANA
Miura et al, 2008 [21]Standard Tx + corticosteroids72.7 (1.6)5 (71.4)80 (70)12.6 (4.8)NANANANANANA
Standard Tx82.6 (2.2)5 (62.5)56 (48)15.1 (4.9)NANANANANANA
Miura et al, 2005 [20]Standard Tx + corticosteroids11NANANANANANANANANANA
Standard Tx11NANANANANANANANANANA
Okada et al, 2003 [13]Standard Tx + corticosteroids143.1 (2.3)8 (57.1)NANANANANANANANA
Standard Tx182.4 (1.9)10 (55.6)NANANANANANANANA