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The first stent was patented in 1972 by Robert A. Ersek, MD based on work he had done in animals in 1969 at the University of Minnesota. In addition to intervascular stents, he also developed the first stent-supported porcine valve that can be implanted transcutaneously in 7 minutes, eliminating open-heart surgery.
A stent graft or covered stent is type of vascular stent with a fabric coating that creates a contained tube but is expandable like a bare metal stent. Covered stents are used in endovascular surgical procedures such as endovascular aneurysm repair. Stent grafts are also used to treat stenoses in vascular grafts and fistulas used for hemodialysis.
However, the stent has not completely done away with restenosis after angioplasty, and improved procedures continue to be sought. The drug-eluting stent, which releases chemicals that inhibit restenosis, has shown marked success and seems to be replacing the bare-metal stent in America, though Europeans have resisted the change due to the expense.
The FDA recently approved a heart stent made specifically for infants and young children, a device that could help kids born with certain congenital heart defects avoid a series of open heart ...
[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 ...
Further diagnostic coronary angiography is not routinely indicated after coronary stent implantation. If progression of heart disease is suspected, a stress test will be performed; patients who develop symptoms or show evidence of ischemia in a stress test may undergo diagnostic cardiac re-catheterization. [35]
“You’re not a candidate for a stent then. Your only option is open heart surgery.” ... “We think it’s crazy (that this happened) but it’s really not because heart disease is the ...
A drug-eluting stent (DES) is a small mesh tube that is placed in the arteries to keep them open in the treatment of vascular disease.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.
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