Some potential disadvantages or risks of coronary stents include:- Restenosis - The stented artery can re-narrow over time due to scar tissue growth, requiring repeat procedure(s). This risk is lower with drug-eluting stents.- Blood clots - Stents have a higher risk of blood clots forming inside the

The lifespan of a coronary stent depends on several factors, but typically they will last many years:- Bare metal stents (BMS): These basic metal meshes typically remain open for 5-10 years before a percentage may develop restenosis (re-narrowing). However, many BMS continue working well beyond 10 y