1989 Volume 39 Issue 6 Pages 715-717
Asymptomatic myocardial infarction (MI) was found in 8 (3%) of the 274 patients with MI who underwent coronary angiography, and half of them were diabetics. They represented only 7% of all diabetics however. Twenty-four (9%) had new onset angina within 2 weeks before MI. Among them, 9 (38%) were diabetics and they represented 15% of all diabetics. In terms of the incidence of MI with or without angina, except for the new onset group, there was no significant difference between diabetics and non-diabetics. The severity of coronary atherosclerosis was independent of the presence of angina prior to MI. Our results indicated that the incidence of asymptomatic MI in diabetics is not as high as previously believed.