[Coronary risk index for pre-operative evaluation of ischemic heart disease].

The incidence of ischemic heart disease is increasing in Japan, and we often experience perioperative management of patients with coronary arterial stenosis. It is, however, difficult to evaluate the lesion of coronary arterial stenosis. We devised a coronary risk index (CRI), which is a scoring system and can easily predict the coronary arterial stenosis from the preoperative routine examination and the patients data. The patients with high CRI have a high risk of ischemic heart disease. By carefully managing these patients from this information, we can decrease the incidence of perioperative complications resulting from ischemic heart disease.