Statins Study in Children of Acute Kawasaki Disease With Coronary Artery Abnormalities

Inclusion Criteria: * KD complicated with CAA, less than 20 days after the onset of KD, or more than 20 days after onset but the KD inflammation has not been controled. * IVIG and/or other anti-inflammatory treatments have been used/are being used. * The guardians agree to atorvastatin treatment and sign the informed consent form. Exclusion Criteria: * Patients with history of family hypercholesterolemia/taking statins/severe chronic diseases. * Patients with abnormal laboratory data including CK≥500U/L, total cholesterol\<3.1mmol/L, ALT or AST≥ 2 times the upper limit of normal. * The guardians do not agree to atorvastatin treatment.