While stents are a widely used and effective treatment for blocked arteries, it's important to be aware of potential risks associated with the procedure. Here's a breakdown:
General risks of stent placement:
- Bleeding: This is the most common complication, usually occurring at the insertion site. In rare cases, excessive bleeding might require a transfusion.
- Allergic reaction: Some people can be allergic to the contrast dye used during imaging or medications involved in the procedure.
- Infection: Though uncommon, infections can occur at the insertion site or within the stent itself.
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- Damage to arteries: The catheter used to deliver the stent might inadvertently damage surrounding arteries.
- Restenosis: This is the re-narrowing of the artery around the stent, a potential long-term complication.
- Heart attack or stroke: These are rare but severe risks associated with any heart procedure.
Additional risks depending on the stent type:
- Drug-eluting stents: These stents are coated with medication to prevent restenosis. However, the medication can increase the risk of blood clots, especially in the first few months after placement.
- Bare-metal stents: These stents don't carry the blood clot risk, but they have a higher chance of restenosis compared to drug-eluting ones.
It's important to remember that the overall risk of serious complications from stent placement is low. However, individual risk factors like age, overall health, and the specific reasons for needing a stent can influence the level of risk.
Here are some resources for further information:
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