Abstract 103: Incomplete Kawasaki Disease - Patients With ≦ 5 Days Of Fever Successfully Treated By Antibiotics But Left With Coronary Aneurysms -

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Objective: We report four patients with incomplete Kawasaki disease (KD) successfully treated by antibiotics without intravenous immunoglobulin (IVIG) treatment with ≦ 5 days of fever but left with coronary artery lesion.

Result: The patients were 2 babies and 2 young children age ranged from 2 months to 2 years old and 9 months. They showed fever and other signs of KD, but did not fulfill diagnostic criteria. The numbers of symptoms compatible with KD were 2 or 3 and included conjunctival injection, oral or lip injection, and eruption. Within 5 days, they became afebrile by antibiotics without IVIG treatment. However, they were noted to have coronary artery aneurysm (CAA) on day from 7 to 33 of illness. All patients had been placed on antithrombotic treatment including aspirin or aspirin plus warfarin and, fortunately, showed regression of CAA within 2 years.

Conclusions: This case series indicates that there are patients with incomplete KD successfully treated by antibiotics without IVIG but left with CAA. These cases must be underdiagnosed if intentional echocardiographic examination are scheduled and might be left without appropriate treatment, antithrombotic treatment. Further collection of data of these patients is indispensable.

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