The New England Journal of Medicine
e-mail icon  FREE NEJM E-TOC    HOME   |   SUBSCRIBE   |   CURRENT ISSUE   |   PAST ISSUES   |   COLLECTIONS   |    Advanced Search
Sign in | Get NEJM's E-Mail Table of Contents — Free | Subscribe
 
Original Article
Volume 337:365-372 August 7, 1997 Number 6
NextNext

Probucol and Multivitamins in the Prevention of Restenosis after Coronary Angioplasty
Jean-Claude Tardif, M.D., Gilles Côté, M.D., Jacques Lespérance, M.D., Martial Bourassa, M.D., Jean Lambert, Ph.D., Serge Doucet, M.D., Luc Bilodeau, M.D., Stanley Nattel, M.D., Pierre de Guise, M.D., for The Multivitamins and Probucol Study Group

 Sign up for free e-toc
 

This Article
-Full Text
- PDF

Commentary
-Letters

Tools and Services
-Add to Personal Archive
-Add to Citation Manager
-Notify a Friend
-E-mail When Cited

More Information
-PubMed Citation
ABSTRACT

Background Oxidizing metabolites generated at the site of coronary angioplasty can induce chain reactions that may lead to restenosis. Antioxidants may counter oxidative stress and modify neointimal formation and vascular remodeling. Experimental data and small clinical studies have suggested that antioxidants may prevent restenosis after angioplasty. In a double-blind, randomized trial, we studied whether drugs with antioxidant properties decrease the incidence and severity of restenosis after angioplasty.

Methods One month before angioplasty, 317 patients were randomly assigned to receive one of four treatments: placebo, probucol (500 mg), multivitamins (30,000 IU of beta carotene, 500 mg of vitamin C, and 700 IU of vitamin E), or both probucol and multivitamins — all given twice daily. Patients were treated for four weeks before and six months after angioplasty. Patients received an extra 1000 mg of probucol, 2000 IU of vitamin E, both probucol and vitamin E, or placebo 12 hours before angioplasty, according to their treatment assignments. Base-line and follow-up angiograms were interpreted by blinded investigators using a quantitative approach.

Results The mean (±SD) reduction in luminal diameter six months after angioplasty was 0.12±0.41 mm in the probucol group, 0.22±0.46 mm in the combined-treatment group, 0.33±0.51 mm in the multivitamin group, and 0.38±0.50 mm in the placebo group (P = 0.006 for those receiving vs. those not receiving probucol, and P = 0.70 for those receiving vs. those not receiving vitamins). Restenosis rates per segment were 20.7 percent in the probucol group, 28.9 percent in the combined-treatment group, 40.3 percent in the multivitamin group, and 38.9 percent in the placebo group (P = 0.003 for probucol vs. no probucol). The rates of repeated angioplasty were 11.2 percent, 16.2 percent, 24.4 percent, and 26.6 percent, respectively (P = 0.009 for probucol vs. no probucol).

Conclusions The antioxidant probucol is effective in reducing the rate of restenosis after balloon coronary angioplasty.


Source Information

From the Department of Medicine, Montreal Heart Institute (J.-C.T., G.C., J. Lespérance, M.B., S.D., L.B., S.N., P.G.), and the University of Montreal (J. Lambert), Montreal. Presented in part at the 69th Scientific Sessions of the American Heart Association, New Orleans, November 11, 1996.

Address reprint requests to Dr. Côté at the Research Center, Montreal Heart Institute, 5000 Bélanger St., Montreal, QC H1T 1C8, Canada.

Full Text of this Article


Related Letters:

Probucol and Multivitamins in the Prevention of Restenosis after Coronary Angioplasty
Sirtori C. R., Franceschini G., Jay S. J., Lisi D. M., Côté G., Tardif J. C., Lespérance J.
Extract | Full Text  
N Engl J Med 1997; 337:1918-1919, Dec 25, 1997. Correspondence

This article has been cited by other articles:



HOME  |  SUBSCRIBE  |  SEARCH  |  CURRENT ISSUE  |  PAST ISSUES  |  COLLECTIONS  |  PRIVACY  |  HELP  |  beta.nejm.org

Comments and questions? Please contact us.

The New England Journal of Medicine is owned, published, and copyrighted © 2008 Massachusetts Medical Society. All rights reserved.