Abstract
Since the introduction of coronary stents into clinical practice in the early 1990s, the number of stent implantations has increased so rapidly that stents are currently used in 60 to 70 percent of all percutaneous interventional procedures.1 Although stent implantation was initially limited to large vessels (≥3.0 mm in diameter) that had proximal, discrete lesions, improvements in stent design and technique now allow their deployment in vessels that are smaller and diffusely diseased, vessels with lesions at bifurcations, and vessels with thrombus in patients with acute myocardial infarction. This rapid growth in the use of stents has been attributed in . . .

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