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J Am Coll Cardiol. 2009 Apr 21;53(16):1389-98. doi: 10.1016/j.jacc.2008.09.067.

Outcome of drug-eluting versus bare-metal stenting used according to on- and off-label criteria.

Author information

1
Department of Internal Medicine, Division of Cardiology, Kalmar County Hospital, Kalmar, Sweden. jorgc@ltkalmar.se

Abstract

OBJECTIVES:

The aim of this study was to investigate the outcome of bare-metal stents (BMS) versus drug-eluting stents (DES) after on-label as well as off-label use.

BACKGROUND:

DES lower restenosis rates while not influencing the risk for death and myocardial infarction when used in Federal Food and Drug Administration (FDA)-approved indications. It is debated whether the clinical results of this so-called on-label use might be extrapolated to off-label situations.

METHODS:

The SCAAR (Swedish Coronary Angiography and Angioplasty Registry) was used to investigate the outcomes in 17,198 patients who underwent stenting with an on-label indication (10,431 BMS and 6,767 DES patients) and 16,355 patients in the context of an off-label indication (9,907 BMS and 6,448 DES patients). The patients were included from 2003 to 2005 with a minimum follow-up of 1 year and a maximum of 4 years. The analysis was adjusted for differences in baseline characteristics.

RESULTS:

There were not significant differences between on-label DES and BMS (adjusted hazard ratio: 1.02; 95% confidence interval: 0.92 to 1.13) or between off-label DES and BMS (adjusted hazard ratio: 0.95; 95% confidence interval: 0.87 to 1.04) use with regard to the incidence of myocardial infarction and death. Off-label use of DES did not lead to significant differences in the combined risk of death and myocardial infarction compared with BMS throughout the whole spectrum of clinical indications.

CONCLUSIONS:

In contemporary Swedish practice, neither on- nor off-label use of DES is associated with worse outcome than use of BMS.

PMID:
19371822
DOI:
10.1016/j.jacc.2008.09.067
[Indexed for MEDLINE]
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