Did You Know ?



Industry News
Global Trends
Events Calendar
Web Links

Web Gallery

Advertising  Info


About Coronary Drug-Eluting Stents

Stents are small, lattice-shaped, metal tubes that are inserted permanently into arteries. They are used to hold open arteries that have narrowed due to plaque build-up (atherosclerosis). When artery walls thicken, the pathway for blood narrows. This can slow or block blood flow.


Stents are used frequently to treat blockages in the blood vessels of the heart. Once in place, stents help hold the arteries open so that the heart muscle gets enough blood. As the body accepts the stents, it grows heart vessel tissue over them.


Stents can be made of only metal (bare metal stents) or they can be coated with small amounts of drugs that are released over time to help keep the arteries from being blocked again (drug-eluting stents).


FDA considers bare metal and drug-eluting stents to be safe and effective when used according to their instructions, but all stents involve some risk. In rare cases, the stent placement procedure can involve complications such as heart attack, blood clots, bleeding, abnormal heart rhythm or blood vessel injury. In some cases, excessive scar tissue can develop within the stent (restenosis).


Studies have shown that drug-eluting stents show a significant reduction in the need for repeat procedures to treat restenosis.


Recent research suggests that in rare cases patients may develop clots in their drug-eluting stents that may cause an increased risk of heart attack or death. This can happen many months or even years after they received their stents. Medications are given after stenting to reduce the risk of blood clots, but we do not know the optimal duration of treatment.


(Ref :
medicaldevices/stentqa.html )


*  *  *  *  *



Back | Back To Top