Residency Level:

Angioplasty opens narrowed arteries by using a catheter that is inserted into an artery in the leg and guided to the site of the blockage in the coronary artery of the heart. In order to keep the artery from re-stenosing, or narrowing again after an angioplasty procedure, an expandable stent is implanted at the site of the blockage to keep the ... ................
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