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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.
Drug-eluting stents coated with anti-proliferative chemicals are used to counteract neointimal hyperplasia after stents placement. [8] Drug-eluting stents that release resveratrol and quercetin show promise with marked reduction in intimal hyperplasia compared to bare, metal stents.
Diagram of stent placement. In A, the catheter is inserted across the lesion. In B, the balloon is inflated, expanding the stent and compressing the plaque. In C, the catheter and deflated balloon have been removed. Before-and-after cross sections of the artery show the results of the stent placement. Arterial Stenting 3D Medical Animation
A lifelong athlete, Kelly felt chest tightness March 29 after climbing a flight of stairs to paint at a South Hill apartment complex. But the sensation eased when he coughed.
The sensation of chest pain can immediately send your mind racing to: "Oh no, am I having a heart attack?"And, it's true that severe pressure or tightness in the chest is the most common symptom ...
The balloon is removed and the stent remains in place, supporting the inner artery walls in the more open, dilated position. Current stents generally cost around $1,000 to 3,000 each (US 2004 dollars), the drug-coated ones being the more expensive.
Affected people usually have repeated episodes of unexplained (e.g., in the absence of exertion and occurring at sleep or in the early morning hours) chest pain, tightness in throat, chest pressure, light-headedness, excessive sweating, and/or reduced exercise tolerance that, unlike atherosclerosis-related angina, typically does not progress to ...
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