Document Detail


Outcomes following coronary stenting in the era of bare-metal vs the era of drug-eluting stents.
MedLine Citation:
PMID:  18577731     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
CONTEXT: Although drug-eluting stents reduce restenosis rates relative to bare-metal stents, concerns have been raised that drug-eluting stents may also be associated with an increased risk of stent thrombosis. Our study focused on the effect of stent type on population-based interventional outcomes.
OBJECTIVE: To compare outcomes of Medicare beneficiaries who underwent nonemergent coronary stenting before and after the availability of drug-eluting stents.
DESIGN, SETTING, AND PATIENTS: Observational study of 38,917 Medicare patients who underwent nonemergent coronary stenting from October 2002 through March 2003 when only bare-metal stents were available (bare-metal stent era cohort) and 28,086 similar patients who underwent coronary stenting from September through December 2003, when 61.5% of patients received a drug-eluting stent and 38.5% received a bare-metal stent (drug-eluting stent era cohort). Follow-up data were available through December 31, 2005.
MAIN OUTCOME MEASURES: Coronary revascularization (percutaneous coronary intervention, coronary artery bypass surgery), ST-elevation myocardial infarction, survival through 2 years of follow-up.
RESULTS: Relative to the bare-metal stent era, patients treated in the drug-eluting stent era had lower 2-year risks for repeat percutaneous coronary interventions (17.1% vs 20.0%, P < .001) and coronary artery bypass surgery (2.7% vs 4.2%, P < .01). The difference in need for repeat revascularization procedures between these 2 eras remained significant after risk adjustment (hazard ratio, 0.82; 95% confidence interval, 0.79-0.85). There was no difference in unadjusted mortality risks at 2 years (8.4% vs 8.4%, P =.98 ), but a small decrease in ST-elevation myocardial infarction existed (2.4% vs 2.0%, P < .001). The adjusted hazard of death or ST-elevation myocardial infarction at 2 years was similar (hazard ratio, 0.96; 95% confidence interval, 0.92-1.01).
CONCLUSION: The widespread adoption of drug-eluting stents into routine practice was associated with a decline in the need for repeat revascularization procedures and had similar 2-year risks for death or ST-elevation myocardial infarction to bare-metal stents.
Authors:
David J Malenka; Aaron V Kaplan; F Lee Lucas; Sandra M Sharp; Jonathan S Skinner
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  JAMA : the journal of the American Medical Association     Volume:  299     ISSN:  1538-3598     ISO Abbreviation:  JAMA     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-25     Completed Date:  2008-06-30     Revised Date:  2013-04-24    
Medline Journal Info:
Nlm Unique ID:  7501160     Medline TA:  JAMA     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2868-76     Citation Subset:  AIM; IM    
Affiliation:
Section of Cardiology, Dartmouth-Hitchcock Medical Center, One Medical Center Drive, Lebanon, NH 03756, USA. david.malenka@hitchcock.org
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MeSH Terms
Descriptor/Qualifier:
Aged
Angioplasty, Balloon, Coronary
Cohort Studies
Coronary Artery Bypass
Coronary Restenosis / epidemiology*,  prevention & control*
Coronary Stenosis / therapy*
Drug-Eluting Stents* / adverse effects
Female
Humans
Male
Medicare
Myocardial Infarction / epidemiology
Myocardial Revascularization*
Proportional Hazards Models
Risk
Stents*
Survival Analysis
Thrombosis / etiology
Treatment Outcome
United States
Grant Support
ID/Acronym/Agency:
P01 AG019783/AG/NIA NIH HHS; P01 AG019783/AG/NIA NIH HHS; P01 AG019783-08/AG/NIA NIH HHS
Comments/Corrections
Comment In:
JAMA. 2009 Jan 7;301(1):33; author reply 34   [PMID:  19126807 ]
JAMA. 2009 Jan 7;301(1):33-4; author reply 34   [PMID:  19126806 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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