Two dimensional echocardiography was done to evaluate cardiac complications. Coronary arterial lesion was defined as following: 1) inner diameter that is >3 mm in children <5 yrs old and >4 mm in children ≥5 yrs old; 2) internal diameter of a segment ≥1.5 times that of an adjacent segment; or 3) lumen with irregular surface. Among these patients, 17 showed coronary dilatations and 38 did not.