谷野 定之¹, 柳沢 正義¹, 伊東 紘一²

Sadayuki YANO¹, Masayoshi YANAGISAWA¹, Kouichi ITOH²

¹自治医科大学小児科, ²自治医科大学臨床病理生理機能

¹Department of Pediatrics, Jichi Medical School, ²Department of Clinical Pathology, J.M.S.

キーワード : Kawasaki disease, Coronary aneurysm, Regression of aneurysm, Aortic root short axis view, Sagittal view, Mural thrombus

The patients with Kawasaki disease have been examined consecutively by two-dimensional echocardiography, in order to evaluate the cardiac involvement, especially the coronary aneurysms, often associated with this disease. In six cases, coronary aneurysms which were later confirmed angiographically, were detected and followed for more than five months (5 - 20 months). The size of the left coronary aneurysms was measured on the image of two-dimensional echocardiography, and the approximate volume was calculated. The size and volume of aneurysms reached the maximum value at three to six weeks after the onset and then reduced gradually in all six cases. In two of them, aneurysms were disappeared echocardiographically beyond one year after the onset. In one patient with extraordinarily huge bilateral coronary aneurysms, mural thrombus was found in left coronary aneurysm at 54 days after the onset, of which echo density had been weakened thereafter. It is concluded that two-dimensional echocardiography is very useful for detecting and following a coronary aneurysm in Kawasaki disease.