The incidence of coronary artery disease in Japan is relatively low compared to that in western countries. The epidemiologic status of coronary artery diseases in our country was discussed. The selective cine coronary arteriography in 230 patients with chest pain, as well as clinical diagnosis and electrocardiographic findings were reviewed in order to study the surgical pictures of coronary artery disease among Japanese. A current review or aortocoronary bypass in Japan is introduced together with our own experiences. In western countries coronary artery surgery has rapidly become one of the most common heart operations. In Japan, on the contrary, our survey indicates that coronary artery surgery is less than 1%. Therefore, we would like to speculate the present status of coronary artery surgery in Japan in order to compare the situation between these countries
