Abstract 196: The Characteristics of Patients with Kawasaki disease Presented with Fever and Cervical Lymphadenopathy at Admission
2015
Purpose: Of the principal diagnostic criteria of Kawasaki disease (KD), cervical lymphadenopathy is the least common. However, it may be misdiagnosed as bacterial cervical lymphadenitis. We evaluated the characteristics of patients with KD presenting with only fever and cervical lymphadenopathy at admission.
Methods: This study enrolled patients diagnosed KD from January 2013 to May 2014. All of patients were divided to three groups: group 1 had only fever and cervical lymphadenopathy at admission; group 2 had typical manifestations with cervical lymphadenopathy; group 3 had typical manifestations without cervical lymphadenopathy.
Results: Ninety eight patients (group 1 in 13, group 2 in 31, group 3 in 54) were examined. The median age of group 1 was significantly older than group 2 and 3 ( P =0.001). The duration of fever before admission at our hospital was more prolonged in group 1 than in group 2 and 3 ( P =0.001). In comparison between groups, the laboratory results at the admission day were not significantly different. However, group 1 showed significantly elevated white blood cell counts, elevated neutrophil counts, and decreased lymphocyte counts after first intravenous immunoglobulin administration ( P =0.001, P =0.001, and P =0.003). The frequency of additional intravenous immunoglobulin treatment did not have significant difference. Group 1 had significantly increased duration of hospitalization, and frequency of second line treatment such as systemic steroid or infliximab than group 2 and 3 ( P =0.000, P =0.024, and P =0.007). The development of a coronary artery dilatation (z score >2.5) was higher in group 1 than in group 3 ( P =0.008).
Conclusions: KD with cervical lymphadenopathy as main presentation indicates a severe form of KD associated with increased risks of second line treatment such as systemic steroid or infliximab and coronary artery dilatation. KD should be suspected in the older children with antibiotics non-responsive, prolonged fever and cervical lymphadenopathy. For differentiation between responder and non-responder for first line treatment, white blood cell counts and their subset after first intravenous immunoglobulin administration may be beneficial.
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