[Clinical and angiographic study of 51 patients with myocardial infarction aged up to 35 years (author's transl)].

The clinical and angiographic data of 51 patients 35 years-old or below with myocardial infarction were studied. The average age of the patients was 30.2 years. Cigarette smoking and familiar history for coronary artery disease (present respectively in 74.5 and 39.1 per cent of the patients) were the most frequent risk factors for coronary disease. The patients were divided into two groups without (group A) and with (group B) post-infarctional complications (angina, dangerous ventricular arrhythmias, left ventricular failure, re-infarction). The coronary arteries were normal in 46.1 per cent of the patients of group A, and in 11.1 per cent of the patients of group B (p less than 0,05). 33.3 per cent of the patients of group A were affected by 1 vessel disease and so were 40.7 per cent of the patients of group B (p = ns). 48.1 per cent of the patients of group B were affected by 2 or 3 vessels disease and so were 25 per cent of patients group A (p = ns). Left ventricular angiography revealed severe impairment of contractility in 70,3 per cent of the patients of group B and in 45.8 per cent in group A. A history of angina before myocardial infarction was connected with the presence of coronary artery disease in 87 per cent of patients.