Efficacy of Four Scoring Systems in Predicting Intravenous Immunoglobulin Resistance in Children with Kawasaki Disease in a Children's Hospital in Beijing, North China

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Abstract

Objective

To evaluate the predictive efficacies of 4 existing scoring systems for intravenous immunoglobulin (IVIG) resistance in Kawasaki disease (KD) in hospitalized children with KD in a children's hospital affiliated with the Capital Institute of Pediatrics, Beijing, China.

Study design

We retrospectively analyzed 1569 children with KD treated at our children's hospital between January 2010 and December 2015. Age, sex, clinical manifestations, and pretreatment hematologic indicators were recorded. Scores were assigned using 4 existing scoring systems: Egami, Kobayashi, San Diego, and Formosa. A 4-case table test was used to determine prediction efficacies.

Results

There were 63 IVIG-resistant cases (41 males, 22 females; average age, 2.5 years). Nine cases were classified as high risk for IVIG resistance by the Egami system, and this system had a sensitivity of 14% and a specificity of 86%. Ten cases had Kobayashi high-risk scores, and this system had a sensitivity of 16% and a specificity of 85%. The San Diego system assigned 60 cases as high-risk, and had a sensitivity of 95% and specificity of 3%. Finally, 27 cases had Formosa scores in the high-risk category, and this system had a sensitivity of 43% and a specificity of 47%.

Conclusions

None of the evaluated systems for assessing the risk for IVIG resistance displayed the combination of sensitivity and specificity necessary for screening. Our analyses show that the 4 scoring systems have limited utility in predicting IVIG resistance among patients with KD in our population.

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