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Updated: Jun 18, 2026

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
[The risk of stent thrombosis in the perioperative setting]
1Universitätsklinik für Anästhesiologie und Intensivmedizin, Medizinische Universität Graz, Graz, Austria. martin.vicenzi@medunigraz.at
Insights
Patients undergoing percutaneous coronary interventions require long-term dual anti-platelet therapy, increasing perioperative risks. Management strategies balance stent thrombosis and bleeding risks for optimal surgical outcomes.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Anesthesiology
Background:
- Increasing rates of percutaneous coronary interventions (PCI) necessitate long-term dual anti-platelet therapy (DAPT).
- This patient cohort faces elevated risks of severe perioperative complications, including coronary ischemia and bleeding.
- Complications arise from acute stent thrombosis or excessive blood loss, with thrombosis posing a higher risk.
Observation:
- A case report highlights challenges in managing patients on DAPT requiring surgery.
- Evidence suggests postponing elective surgery until DAPT completion is often necessary.
- Individualized, interdisciplinary approaches are crucial for semi-elective surgical candidates.
Findings:
- Stent thrombosis risk outweighs bleeding risk in DAPT patients.
- Perioperative management requires careful consideration of anti-platelet agent withdrawal.
- If clopidogrel is stopped, aspirin should be continued throughout the perioperative period.
- Minimizing surgical trauma and considering bare metal stents for procedures within 12 months are key.
Implications:
- Optimized perioperative protocols are essential for high-risk PCI patients.
- Interdisciplinary collaboration improves patient safety and surgical outcomes.
- Evidence-based guidelines aid in managing DAPT cessation and continuation strategies.
Abstract:
Percutaneous coronary interventions associated with a need for long-term dual anti-platelet therapy are steadily increasing. Accordingly, reports of severe perioperative complications in this high-risk group of patients are also increasing. Complications can be categorized into two groups: coronary ischemia or myocardial infarction due to acute stent thrombosis or increased blood loss. Risk of stent thrombosis is higher compared to the risk of bleeding. The article discusses the perioperative management based on an informative case report and recent evidence: Elective surgery has to be postponed until the end of dual anti-platelet therapy. Management of patients planned for semi-elective surgery should be individualized with interdisciplinary consensus. If clopidogrel is withdrawn, aspirin should be administered throughout the perioperative period. Careful surgical technique is required. If surgery is planned within 12 months, implantation of bare metal stents is recommended.
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