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Panminerva Medica 2005 June;47(2):93-7

Copyright © 2009 EDIZIONI MINERVA MEDICA

lingua: Inglese

Drug eluting stents in acute myocardial infarction

Presbitero P., Boccuzzi G., Pagnotta P.

Department of Invasive Cardiology Istituto Clinico Humanitas, Rozzano (Milano), Italy


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Routine stent-implantation in primary coronary intervention (PCI) for acute myocardial infarction (AMI) has been shown to have a better clinical outcome than balloon angioplasty mainly because of reduction in restenosis rate and reocclusion. Drug eluting stents (DES) have recently been proven to further reduce restenosis and revascularization rate in comparison to bare metal stent (BMS) in elective procedures. Delayed endothelization of these stents raises concerne about a possible increase of thrombotic complications in the setting of AMI. Randomized studies with DES in the treatment of elective patients have shown at 9-12 months follow-up a thrombosis rate of 0-2% comparable to the one of BMS. Sirolimus eluting stents (SES) in AMI have been used in small serie of consecutive pts not randomized or in registries with very high successful rate and a stent thrombosis varing between 0 and 4.7%. Paclitaxel elunting stent (PES) have also shown in small serie a good immediate performance with a thrombosis rate between 0 and 4.8%. Predictors of acute and subacute stent thrombosis are the same than for BMS: residual dissection, long or overllapping stents, biforcation lesions and discontination of antiplatelets treatment. Providing effective mechanical reperfusion with similar results to the current therapeutic standard and decreasing the incidence of late complications, DES appear as an attractive approach for patients admitted with AMI.

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