Abstract：Objective To study the clinical features of children with recurrent Kawasaki disease (KD). Methods PubMed, Web of Science, Embase, CNKI, Wanfang Med Online, and Weipu Data were searched for case-control studies on the clinical features of initial and recurrent KD. The articles were screened according to the inclusion and exclusion criteria. RevMan 5.3 software was used to perform the Meta analysis. Effect models were selected based on the results of heterogeneity test, and then pooled OR or weighted mean difference (WMD), and their 95% CI were calculated. Results A total of 9 case-control studies were included, with 12 059 children with KD in total, among whom 206 children had recurrent KD (127 boys/61.7%; 79 girls/38.3%). The results of the Meta analysis showed that compared with the initial KD onset, the children with recurrent KD had a shorter duration of fever (WMD=-1.81, 95%CI:-2.99 to -0.64) and a lower proportion of children with swelling of the hands and feet (OR=0.46, 95%CI:0.26 to 0.80). There was no significant difference in the incidence rate of coronary artery lesions between recurrent KD and initial KD (OR=1.34, 95%CI:0.84 to 2.14). Conclusions Current evidence shows that children with recurrent KD tend to have a shorter duration of fever and a lower incidence of swelling of the hands and feet. KD recurrence is more common in boys. Current evidence does not show an increased risk of developing coronary artery lesions in children with recurrent KD.
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