To investigate situations and risk factors of coronary heart disease, we studied retrospectively 69 acute myocardial infarctions, (45~84 yearsold) admitted in Yamaguchi Prefectural Hospital Central for 10 years. The mortality rate was 17% in one month, 4.2% in one year, and 33% in 5 years. The most causes of mortality were pump failure and cardiogenic shock. The coronary risk factors in this study were cigarette smoking, hypertension, hyperuricaemia, hyperlipidemia, and diabetes mellitus. Hyperuricaemia is reflected with administration of anti-hypertensive agents or nephropathy in hypertensive subjects…