Vessel Wall Response of the Zotarolimus Drug-eluting Stent Implanted in AMI Assessed by Optical Coherence Tomography

The objective of this study is to evaluate the completeness of struts coverage and vessel wall response (strut malapposition, neointima disomogeneities in texture) to the ENDEAVOR drug-eluting stent vs the DRIVER stent (bare metal stent of identical metallic platform) implanted for the treatment of the culprit lesion in ST-elevation acute myocardial infarction (STEMI). To investigate the completeness of the coverage as well as the number of uncovered stent struts per section (embedded, uncovered, malapposed) and the neointima texture, high resolution (\~ 10-15 µm axial) intracoronary optical coherence tomography (OCT)will be used.