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Bare-metal stent thrombosis two decades after stenting
Aynur Acibuca1, Demet Menekse Gerede2, Veysel Kutay Vurgun2
1Department of Cardiology, Ankara University School of Medicine, Ankara, Turkey. aynuracibuca85@gmail.com.
Cardiovascular Journal of Africa
|September 26, 2015
Summary
Very late bare-metal stent (BMS) thrombosis is rare, with the latest previous report at 14 years. This case documents BMS thrombosis occurring 20 years after implantation, representing the latest incidence reported to date.
Area of Science:
- Cardiology
- Interventional Cardiology
- Biomedical Engineering
Background:
- Bare-metal stents (BMS) are commonly used in percutaneous coronary interventions.
- Very late stent thrombosis (VLST), defined as thrombosis occurring >1 year after implantation, is an uncommon but serious complication.
- Previous reports of VLST for BMS have a maximum duration of 14 years post-implantation.
Observation:
- A 68-year-old male presented with acute anterior myocardial infarction.
- Coronary angiography revealed a history of BMS implantation in the left anterior descending artery (LAD) 20 years prior.
- The angiography demonstrated acute thrombotic occlusion of the previously implanted BMS in the LAD.
Findings:
- This case represents the latest reported incidence of bare-metal stent thrombosis.
- The thrombosis occurred two decades after the initial BMS implantation.
- The clinical presentation was acute anterior myocardial infarction secondary to in-stent thrombosis.
Implications:
- This case highlights the potential for very late stent thrombosis even after extended periods.
- It underscores the importance of long-term surveillance for patients with BMS.
- Further research may be needed to understand the mechanisms and risk factors for extremely late BMS thrombosis.
