alexa An angiographic evaluation of restenosis rate at a six-month follow-up of patients with ST-elevation myocardial infarction submitted to primary percutaneous coronary intervention
Cardiology

Cardiology

Angiology: Open Access

Author(s): Giglioli C

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BACKGROUND: Percutaneous coronary intervention (PCI) is considered to be the optimal type of revascularization in patients with ST-segment elevation myocardial infarction (STEMI). However, the long-term effectiveness of this procedure can be reduced by restenosis. This investigation was aimed at a prospective evaluation, in a group of STEMI patients of "the real world" (not involved in randomised trials), of the angiographic restenosis rate at a 6-month follow-up, and at identifying the relationship between restenosis and the patients' characteristics.

MATERIALS AND METHODS: Our study population consisted of 123 patients with STEMI submitted to primary PCI to then undergo stress echocardiography 3 months after PCI and an angiographic evaluation at a 6-month follow-up.

RESULTS: a) In real life the restenosis rate is quite high (42.3%); b) no correlation was found between patients' clinical characteristics and restenosis; c) restenosis rate was higher in patients with bare metal stents than in those with drug-eluting stents (55.8% vs. 11.1%; p<0.001); in patients with longer stents (21.6+/-8.62 vs 18.1+/-6.34 mm, p=0.015) and when more than one stent was implanted. Moreover, a consistent number of patients showed restenosis though asymptomatic.

CONCLUSIONS: Our data suggest that primary PCI is associated with a high incidence of angiographic restenosis. No correlation was found between patients' clinical characteristics and restenosis. The length and the number of implanted stents seem to be associated with a more probable restenosis at six-month angiographic evaluation. Drug-eluting stent implantation seems to be associated with a lower incidence of restenosis even in STEMI patients.

This article was published in Int J Cardiol and referenced in Angiology: Open Access

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