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Minerva Cardioangiologica 2004 June;52(3):189-94

Copyright © 2004 EDIZIONI MINERVA MEDICA

language: English

Procedural and long-term results of sirolimus-eluting stent in patients at high risk for restenosis

Presbitero P., Zavalloni D., Scatturin M., Marisco F., Pagnotta P., Boccuzzi G.


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Aim. In-stent restenosis still affects 10-50% of long-term outcome after percutaneous coronary intervention (PCI). Large clinical trials have shown that sirolimus-eluting stents (SES) have reduced restenosis rate to 0-9% in lesions at low-moderate risk. The aim of this study was to evaluate long-term clinical and angiographic outcome of SES in a real world population, at very high risk of restenosis.
Methods. Ninety lesions at high risk of restenosis (lesion length >20 mm, target vessel diameter <2.5 mm, in-stent diffuse restenosis, total occlusions and complex lesions on bypass grafts and bifurcations) were treated in 75 patients. A follow-up was scheduled at 6 months.
Results. Restenosis rate was 16.6% with a focal pattern of presentation in most cases. Subacute in-stent thrombosis occurred in 2.2%. Resteno-sis occurred mainly in small vessels, diabetic patients and in vessels previously treated with brachytherapy.
Conclusion. The treatment of lesions at high risk of restenosis with SES is safe with a low restenosis rate at follow-up. An aggressive and prolonged antiplatelet regimen is mandatory because of high subacute in-stent thrombosis rates.

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