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Kardiologia polska

Self-expanding STENTYS stents in daily routine use.


PMID 28353317

Abstract

In the era of modern interventional cardiology, implantation of a balloon expandable stent is the finishing touch of almost every coronary angioplasty. However, sometimes we face a clinical situation in which the decision regarding the stent diameter is complicated, especially in the ectatic part of arteries, in situations when the artery lumen is obscured with the thrombus, or when the reference diameter of the proximal and distal part of the lesion vary greatly. That is why the idea of a self-apposing stent similar to the one used in peripheral vascular interventions was adopted into cardiology. The aim of this study was to present a single-centre registry of STENTYS® stent implantation in 40 selected patients with acute coronary syndromes (ACS) or with stable angina (coronary artery disease [CAD]) treated with this self-expandable stent. The device was successfully implanted in all patients. During in-hospital observation and 30-day follow-up there were two cases of death, but none of the patients had acute stent thrombosis or ACS ST elevation myocardial infarction. In one case ACS type 4b was diagnosed. In all patients the stent was delivered in the target lesion. In two cases the procedure was performed in patients with multivessel CAD extending into the left main stem in a state of cardiogenic shock. These patients died immediately after the procedure. There were two procedure complications: in one case dissection after post dilatation occurred distally to the stent, and in one patient the calcified proximal part of the left anterior descending artery was dissected with system passage. Thirty-eight patients survived the 12-month follow-up period, and three (7.8%) patients underwent repeated target-lesion revascularisation. In the presented single-centre registry the STENTYS® stent was used with a high delivery and procedural success rate. Satisfactory clinical long-term outcome both in stable patients and ACS patients with a repeated revascularisation ratio of 7.8% was observed. The stent design allowed successful treatment of bifurcation lesions.

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