[Postinfarct aneurysms of the left ventricle in patients without an atherosclerotic lesion of the coronary arteries].

A total of 93 patients with post-infarction aneurysm of the left ventricle were observed; eight (8.6%) of them showed no atherosclerotic damage to the coronary arteries as judged by the findings provided by selective cinocoronarography and the inspection of the arteries during surgery. All patients had a history of a macrofocal transmural myocardial infarction of the left ventricle anterior wall. In one case the coronary arteries were intact. Four patients (group I) presented an angiographic picture of the recanalized thrombus of the anterior interventricular artery (AIVA). Three patients (group II) showed uniform stenosis of the AIVA with the impoverishment of its distal portions. The contractility parameters were worse in the group I patients whereas the clinical manifestations of angina were more pronounced in the group II patients.