Coronary Arteries deliver oxygen-rich blood to the heart muscle. Over time, Plaque can build up in coronary arteries and blood flow through them is limited. This is known as coronary heart disease (CHD). It can damage heart muscle and increases the risk of heart attack.
Here comes the role of Cardiac stent, which is used to treat the narrowed Coronary arteries. Cardiac stents are nothing but expandable coils which is made of metal mesh.
During Coronary Angioplasty, this cardiac stent is inserted through a minimally invasive procedure. Angioplasty with stent is usually recommended for patients who have only one or two blocked arteries. For patients with more than two blocked arteries, bypass surgery may be a better option.
One in three patients receiving stents will experience restenosis, when a stent-receiving heart artery starts to narrow again because of plaque build-up or scarring from the surgery.
Researchers have now created a smart stent that helps with this problem. The smart stent monitors any changes, no matter how small, in blood flow through the artery. It detects artery narrowing in the early stages allowing for early diagnosis and treatment.
The smart stent is made out of medical grade stainless steel. It looks just like a commercial stent, and it can be used with the same medical procedures as commercial stents. Currently, it is just a prototype, but researchers hope it will be ready for use soon. It has been successfully tested in the lab on a swine model.
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