[Left coronary disease in postero inferior myocardial infarction (author's transl)].

Postero-inferior-myocardial-infarction (MI) results usually from the occlusion of the right coronary artery. Recent pathological and angiographic studies have pointed out that in such cases occlusion of the right coronary artery was often (30 to 80 per cent of cases) associated with a severe (greater than or equal to 70 %) stenosis of the left anterior descending coronary artery. Thus, serious left coronary artery disease is frequent and unrecognized in patients with chronic even uncomplicated MI. Exercise test does not allow to recognize accurately this high risk group of patients which should be identified by coronary arteriography.