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Drug-eluting stents (DES) are frequently used in off-label situations. Two new observational studies illuminate the real-world use of DES.
In the first study, investigators used data from the National Heart, Lung, and Blood Institute (NHLBI) Dynamic Registry to compare the safety and efficacy of DES versus bare-metal stents (BMS) for manufacturer-approved versus off-label indications. The off-label group (1312 DES recipients and 2110 BMS recipients) included patients with lesions that were restenotic; in bypass grafts; in long (>30 mm), small, and large vessels; at ostial, left main, and bifurcation locations; and totally occluded. DES recipients had longer and more complex lesions than BMS recipients and also were more likely to be receivin…