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Updated: Jun 19, 2026

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Thrombosis after stent implantation: how much of a problem is there?
1iako@hol.gr
Insights
Drug-eluting stents (DES) offer benefits over bare-metal stents (BMS) by reducing restenosis. However, DES carry risks like stent thrombosis, emphasizing the need for prolonged antiplatelet therapy.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Biomaterials Science
Background:
- Drug-eluting stents (DES) are designed to prevent in-stent restenosis and target vessel revascularization.
- Concerns exist regarding DES, including delayed endothelialization, hypersensitivity reactions, and late stent thrombosis.
Purpose of the Study:
- To compare the clinical outcomes and risks associated with drug-eluting stents versus bare-metal stents.
- To evaluate the net clinical benefit of DES in interventional cardiology.
Main Methods:
- Review of existing evidence and randomized trials comparing DES and BMS.
- Analysis of risk factors for stent thrombosis, particularly in relation to antiplatelet therapy.
Main Results:
- DES significantly reduce restenosis and revascularization compared to BMS.
- DES are associated with potential risks including delayed healing and late stent thrombosis.
- Premature discontinuation of antiplatelet therapy is a key predictor of stent thrombosis.
Conclusions:
- The net clinical benefit of DES likely outweighs their risks, despite potential complications.
- Patient selection is crucial; candidates must tolerate uninterrupted antiplatelet therapy post-DES implantation.
Abstract:
Drug-eluting stents reduce the occurrence of in-stent restenosis and the need for subsequent target vessel revascularization when compared with bare-metal stents. However, drug-eluting stents may be associated with delayed (or absent) endothelialization, localized hypersensitivity reactions and late stent thrombosis. Stent thrombosis is a catastrophic event, resulting in life-threatening complications. Although larger, adequately powered, randomized trials are needed to fully assess the net clinical effects of drug-eluting stents compared with bare-metal stents, the evidence, thus far, appears to suggest that the net clinical benefit of drug-eluting stents may outweigh their risks. Premature discontinuation of antiplatelet therapy is the most important predictor of stent thrombosis; therefore, patients who are candidates for implantation of drug-eluting stents should be screened for their ability to receive and tolerate uninterrupted antiplatelet therapy longer than is necessary with bare-metal stents.
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