Laboratory measurements
Coagulation analyses of the patient’s plasma, including PT, APTT, TT, fibrinogen, D-dimer, FDP, international normalized ratio, and ATIII activity, were performed before initial IVIG within 10 days from fever onset. Standard coagulation measurements were performed with a CoagXL-automated coagulometer (Diagon Ltd., Budapest, Hungary) using reagents from Diagon.