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Coronary artery stents, typically a metal framework, can be placed inside the artery to help keep it open. However, as the stent is a foreign object (not native to the body), it incites an immune response. This may cause scar tissue (cell proliferation) to rapidly grow over the stent and cause a neointimal hyperplasia.
Older bare-metal stents (BMS) provide a mechanical framework that holds the artery wall open, preventing stenosis, or narrowing, of coronary arteries. Newer drug-eluting stents (DES) are traditional stents with a polymer coating containing drugs that prevent cell proliferation. The antiproliferative drugs are released slowly over time to help ...
Percutaneous coronary intervention (coronary angioplasty with stent placement): A percutaneous coronary intervention involves opening up a narrowed artery in your heart with a thin tube called a ...
As blood is pumped through the body, the valves within the veins prevent the blood from flowing backwards. After extensive, prolonged standing, these valves can become weak and eventually fail. When this happens, blood is no longer being prevented from flowing backward. Gravity will pull the blood back into an individual's legs, ankles and feet.
The finding was an update from a 2018 recommendation that postmenopausal women should not supplement with 400 units or less of vitamin D and 1,000 milligrams or less of calcium for the primary ...
There was also a gender gap, with women experiencing more years in poor health than men. "Worldwide, women live longer than men, but exhibit a 2.4-year-wider healthspan-lifespan gap," said Terzic.
Vascular stents are commonly used in angioplasty, a surgical procedure that opens blocked arteries and places a stent to keep the artery open. This is a common treatment for heart attacks and is also used in the prevention and treatment of strokes. Over 2 million people receive a stent each year for coronary artery disease alone.
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