Kawasaki disease is an acute febrile illness frequently developed in infants and children. This disease may involve coronary arteries in 15-25% of the patients and may progress to coronary aneurysms, ischemic cardiac diseases, and sudden cardiac death. Recently we experienced successful balloon angioplasty followed by coronary stenting in a 15-year old boy with unstable angina secondary to Kawasaki disease. He was diagnosed
as unstable angina by 24 hours Holter monitoring, treadmill exercise stress test, echocardiography, and Dipyridamole 99mTc-sestamibi scan. And coronary angiogram revealed severe multiple stenosis and aneurysmal changes due to Kawasaki disease. We successfully performed a percutaneous transluminal coronary angioplasty with stent implantation in the left circumflex arterial lesion. (Korean Circulation J 2000;30(10): 1300-1306)