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To the Editor: I have a number of concerns about the study by Dr Malenka and colleagues¹ on outcomes following stenting in the bare-metal stent era vs drug-eluting stent era, which concluded that there was a decline in the need for repeat revascularization procedures. First, the authors excluded patients with any percutaneous coronary intervention (PCI) or coronary artery bypass within 1 year. These patients were likely to have bare-metal stents since the drug-eluting stent cohort was from the years immediately after these stents were introduced. Thus, some cases with restenosis within a year were likely to have been left out.

Second, the authors did not perform separate analyses for patients receiving bare-metal vs drug-eluting stents even though this information was available based on codes from the International Classification of Diseases, Ninth Revision, Clinical Modification. Third, no information was provided about the reasons certain patients received bare-metal vs drug-eluting stents, . . . [Full Text of this Article]

Abhimanyu Beri, MD
abhiberi@gmail.com
Department of Internal Medicine
Michigan State University
East Lansing

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