METHODS: Systematic search was conducted in PubMed and Cochrane. Other relevant articles were searched by reviewing the references of the reviewed article. All clinical trials with documented IgG trough levels and clinical outcome of interest in patients receiving IVIG treatment were eligible to be included in this review. Meta-regression analysis was conducted using Comprehensive Meta-analysis Software. Additional sensitivity analyses were undertaken to evaluate the robustness of the overall results.
RESULTS: Twenty-eight clinical studies with 1218 patients reported from year 2001 to 2018 were included. The mean IVIG dose used ranges from 387 to 560 mg/kg every 3 to 4 weekly, and mean IgG trough obtained ranges from 660 to 1280 mg/dL. Random-effects meta-regression slope shows that IgG trough level increases significantly by 73 mg/dL with every increase of 100 mg/kg dose of IVIG (p
METHODS: This retrospective, observational, population-based study involved all children with KD registered in Johor Kawasaki Clinical Registry over 10 years (January 2010 and December 2019). The prevalence of delayed diagnosis and its trend over time was calculated. Multivariable binary logistic regression was used to identify the independent risk factors for delayed diagnosis.
RESULTS: There were 556 cases of KD, with 28% having incomplete criteria, 11% atypical presentation, while 10% developed a coronary aneurysm. The overall prevalence of delayed diagnosis was 9.9% (95% confidence interval (CI): 7.6-12.7%). There was a statistically significant decrease in delayed diagnosis over time (P = 0.008), with the latest rate of 4.6%. The majority of delayed diagnoses were due to failure to diagnose the disease during the initial consultation. Independent risk factors for delayed diagnosis were children older than 1 year, diagnosis before 2015, atypical presentation, and incomplete KD, with adjusted odds ratios (ORs) of 2.7, 2.3, 4.3, and 3.6, respectively. Compared to early diagnosis of KD, delayed diagnosis was significantly associated with coronary aneurysms (27.3% vs. 8.2%, P < 0.001, OR 4.2, [95% CI: 2.1-8.3]).
CONCLUSIONS: One-tenth of cases of KD were diagnosed late, but it has improved over time. Children > 1 year, presenting with atypical presentation, and incomplete criteria are associated with late diagnosis.