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A bioresorbable stent is a tube-like device that is used to open and widen clogged heart arteries and then dissolves or is absorbed by the body. It is made from a material that can release a drug to prevent scar tissue growth. It can also restore normal vessel function and avoid long-term complications of metal stents. [1] [2]
After the balloon inflation/deflation or the deposition of the stent, the placement device/deflated balloon are removed leaving the stent in place. [ 21 ] [ 22 ] The interventional cardiologist decides how to treat the blockage in the best way during the PCI/stent placement, based on real-time data.
The stent slowly releases a drug to block cell proliferation (a biological process of cell growth and division), thus preventing the arterial narrowing that can occur after stent implantation. While such stents can be used in various arteries throughout the body, they are commonly placed in the coronary arteries to treat coronary heart disease.
For some high-risk cardiovascular patients with stents, the often-recommended practice of prolonged taking of aspirin might be ineffective, and in some cases, even harmful, a new study found.
Coronary stents are placed during a coronary angioplasty.The most common use for coronary stents is in the coronary arteries, into which a bare-metal stent, a drug-eluting stent, a bioabsorbable stent, a dual-therapy stent (combination of both drug and bioengineered stent), or occasionally a covered stent is inserted.
Atherectomy is a minimally invasive technique for removing atherosclerosis from blood vessels within the body. It is an alternative to angioplasty for the treatment of peripheral artery disease, but the studies that exist are not adequate to determine whether it is superior to angioplasty. [1]
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.
[15] [16] The balloon avoids the need for a double layer of metal which is used when an in-stent restenosis is treated with another stent within the original stent. Additionally, DCB treatment does not leave an implant in the body and is designed for faster drug delivery. Alternative treatments include brachytherapy, or intracoronary radiation ...