1. Long-Term Follow-up of Neointimal Coverage of Sirolimus-Eluting Stents: Evaluation With Optical Coherence Tomography

    Long-Term Follow-up of Neointimal Coverage of Sirolimus-Eluting Stents: Evaluation With Optical Coherence Tomography
    Late stent thrombosis related to delayed neointimal growth is a major concern after drug-eluting stent (DES) implantation. The time course of neointimal growth and risk factors of uncovered stent struts after sirolimus-eluting stent (SES) was studied using optical coherence tomography (OCT). Methods and Results: The 60 patients were enrolled and classified into G1 (follow-up period <9 months, n=27), G2 (9-24 months, n=18), and G3 (>25 months, n=15). The time elapsed since SES implantation was associated with a significant increase in mean neointimal area and neointimal thickness, and also with a significant decrease in the number of uncovered stent struts (G1: 14.8%, G2: 11.7%, and G3: 4 ...
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