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Published on: October 26, 2016
Self-expanding STENTYS stents in daily routine use
Michał Kidawa1, Krzysztof Chiżyński, Michał Kacprzak
1Intensive Cardiac Therapy Clinic, Chair of Interventional Cardiology and Electrotherapy, Medical University of Lodz, Lodz, Poland, Poland. kidawa@ptkardio.pl.
Insights
This study shows the STENTYS® self-expanding stent is effective for complex coronary artery disease, demonstrating high success rates and good long-term outcomes in patients with acute coronary syndromes and stable angina.
Area of Science:
- Interventional Cardiology
- Vascular Surgery
Background:
- Balloon-expandable stents are standard in coronary angioplasty.
- Complex cases like ectatic arteries, obscured lumens, or significant diameter variations pose challenges.
- Self-apposing stents, adapted from peripheral interventions, offer a potential solution.
Purpose of the Study:
- To evaluate the STENTYS® self-expanding stent in a single-centre registry.
- To assess its use in patients with acute coronary syndromes (ACS) or stable coronary artery disease (CAD).
Main Methods:
- A registry of 40 patients treated with STENTYS® self-expanding stents.
- Inclusion of patients with ACS or CAD.
- Follow-up included in-hospital, 30-day, and 12-month periods.
Main Results:
- Successful implantation in all 40 patients.
- Two in-hospital deaths in patients with cardiogenic shock and multivessel disease.
- No acute stent thrombosis or myocardial infarction.
- One case of ACS type 4b.
- Two procedural complications: distal dissection and proximal LAD dissection.
- 7.8% (3 patients) required target-lesion revascularization within 12 months.
Conclusions:
- STENTYS® stent demonstrated high delivery and procedural success rates.
- Satisfactory long-term clinical outcomes were observed in both stable and ACS patients.
- The stent design facilitated successful treatment of bifurcation lesions.
Background:
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.
Aim:
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.
Methods And Results:
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.
Conclusions:
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.
