• Ling Wu, Yuanling Chen, Shiling Zhong, Yunyan Li, Xiahua Dai, and Yazhen Di.
• Department of Pediatric Rheumatoid Immunology, Ningbo Women and Childrens Hospital, Zhejiang, China. Correspondence to Dr Yazhen Di, Department of Pediatric Rheumatoid Immunity Ningbo Women and Childrens Hospital, 339 Liuting Street, Ningbo, Zhejiang 315012, China. dyz028@163.com.
• Indian Pediatr. 2015 Jun 1; 52 (6): 477-80.

ObjectiveTo explore the diagnostic value of blood N-terminal pro-brain natriuretic peptide (NT-proBNP) and interleukin-17(IL-17) for incomplete Kawasaki disease.MethodsPatients with Kawasaki disease, Incomplete Kawasaki disease and unclear infectious fever were included in this retrospective study. Their clinical features, and laboratory test results of blood NT-proBNP and IL-17 were collected and compared.Results766 patients with complete clinical information were recruited, consisting of 291 cases of Kawasaki disease, 74 cases of incomplete Kawasaki disease, and 401 cases of unclear infectious diseases. When the consistency with indicator 2 and 3 in Kawasaki disease diagnosis criteria was assessed with blood IL-17 ?11.55 pg/mL and blood NT-proBNP ? 225.5 pg/dL as the criteria, the sensitivity and specificity for distinguishing incomplete Kawasaki disease and infectious diseases reached 86.5% and 94.8%, respectively. When we chose the consistency with indicator 1 and 2 in Kawasaki disease diagnosis criteria, the appearance of decrustation and/or the BCG erythema, blood IL-17 ?11.55 pg/mL and blood NT-Pro BNP ?225.5 pg/dL as the criteria, the sensitivity and specificity for distinguishing incomplete Kawasaki disease and infectious diseases was 43.2% and 100%, respectively.ConclusionsBlood NT-proBNP and IL-17 are useful laboratory indicators for distinguishing incomplete Kawasaki disease and infectious diseases at the early stage.

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