Abstract
The effect of lesion characteristics on neointimal hyperplasia after sirolimus-eluting stent implantation was examined in 45 patients who underwent successful preinterventional intravascular ultrasound. There were no differences in neointimal hyperplasia between the moderate/severe calcified lesion group (calcium arc >120 degrees ) and the non/mild calcified lesion group or between the positive vessel remodeling group (external elastic membrane area at the minimal lumen area site larger than that at the proximal reference site) and negative vessel remodeling group. No correlation between preinterventional plaque burden and neointimal hyperplasia was found. In patients who have coronary artery disease, sirolimus-eluting stents continue to demonstrate striking suppression of neointimal proliferation, irrespective of lesion characteristics previously associated with greater restenotic risk.
Publication types
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Multicenter Study
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Randomized Controlled Trial
MeSH terms
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Blood Vessel Prosthesis Implantation / adverse effects
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Blood Vessel Prosthesis Implantation / instrumentation*
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Coated Materials, Biocompatible / adverse effects*
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Coronary Restenosis / diagnostic imaging*
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Coronary Restenosis / etiology
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Coronary Stenosis / diagnostic imaging
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Coronary Stenosis / surgery
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Coronary Vessels / diagnostic imaging*
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Coronary Vessels / surgery
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Disease Progression
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Double-Blind Method
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Female
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Follow-Up Studies
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Humans
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Hyperplasia / diagnostic imaging
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Immunosuppressive Agents / pharmacology
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Male
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Middle Aged
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Postoperative Complications
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Prospective Studies
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Prosthesis Failure
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Risk Factors
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Severity of Illness Index
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Sirolimus / pharmacology*
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Stents / adverse effects*
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Tunica Intima / diagnostic imaging
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Tunica Intima / pathology
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Ultrasonography, Interventional*
Substances
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Coated Materials, Biocompatible
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Immunosuppressive Agents
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Sirolimus