[Preliminary pilot study in humans with coronary endovascular prosthesis (stent SAQ). Immediate and medium-term results].

Abstract

We report the results obtained of 23 patients in whom 25 intracoronary stents (SAQ) were placed. All had atherosclerotic coronary artery disease with different clinical types of presentation, such as stable angina, unstable angina, myocardial infarction. In others cases the reason for the procedure was postangioplasty complications. The majority of cases had complex lesions: total occlusion, long plaques and patients in critical and unstable state. The immediate results were considered satisfactory due to the fact that there was angiographic improvement compared to just conventional angioplasty, the final flow was TIMI-3 in 23 and TIMI-2 en two others, in these cases the initial flow was TIMI-0. The arterial diameter improved compared to prior angioplasty. Acute thrombosis occurred in one case and was resolved with repeated dilatation, in two cases the atherosclerotic plaque protruded within the stent, in both cases the occlusion was considered non significant, without modifications in the flow. All patients had a 3 months follow up with treadmill test. In 10 cases angiography was indicated, in 4 due to positive treadmill. Restenosis was resolved in three cases, in another coronary arterial by-pass was necessary. In all other cases angiographic findings were normal, included one patient with two stents.