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
PreviousPrevious
Volume 343:915-922 September 28, 2000 Number 13
NextNext

Multiple Complex Coronary Plaques in Patients with Acute Myocardial Infarction
James A. Goldstein, M.D., Demetris Demetriou, M.D., Cindy L. Grines, M.D., Mark Pica, B.S., Mazen Shoukfeh, M.D., and William W. O'Neill, M.D.

 Sign up for free e-toc
 

This Article
-Full Text
- PDF

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

More Information
-PubMed Citation
ABSTRACT

Background Acute myocardial infarction is believed to be caused by rupture of an unstable coronary-artery plaque that appears as a single lesion on angiography. However, plaque instability might be caused by pathophysiologic processes, such as inflammation, that exert adverse effects throughout the coronary vasculature and that therefore result in multiple unstable lesions.

Methods To document the presence of multiple unstable plaques in patients with acute myocardial infarction and determine their influence on outcome, we analyzed angiograms from 253 patients for complex coronary plaques characterized by thrombus, ulceration, plaque irregularity, and impaired flow.

Results Single complex coronary plaques were identified in 153 patients (60.5 percent) and multiple complex plaques in the other 100 patients (39.5 percent). As compared with patients with single complex plaques, those with multiple complex plaques were less likely to undergo primary angioplasty (86.0 percent vs. 94.8 percent, P=0.03) and more commonly required urgent bypass surgery (27.0 percent vs. 5.2 percent, P<=0.001). During the year after myocardial infarction, the presence of multiple complex plaques was associated with an increased incidence of recurrent acute coronary syndromes (19.0 percent vs. 2.6 percent, P<=0.001); repeated angioplasty (32.0 percent vs. 12.4 percent, P<=0.001), particularly of non–infarct-related lesions (17.0 percent vs. 4.6 percent, P<=0.001); and coronary-artery bypass graft surgery (35.0 percent vs. 11.1 percent, P<=0.001).

Conclusions Patients with acute myocardial infarction may harbor multiple complex coronary plaques that are associated with adverse clinical outcomes. Plaque instability may be due to a widespread process throughout the coronary vessels, which may have implications for the management of acute ischemic heart disease.


Source Information

From the Division of Cardiology, William Beaumont Hospital, Royal Oak, Mich. Presented in part in abstract form at the Scientific Sessions of the American Heart Association, Atlanta, November 7–10, 1999.

Address reprint requests to Dr. Goldstein at the Division of Cardiology, William Beaumont Hospital, 3601 W. 13 Mile Rd., Royal Oak, MI 48073-6769, or at jgoldstein{at}beaumont.edu.

Full Text of this Article


This article has been cited by other articles:



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

Comments and questions? Please contact us.

The New England Journal of Medicine is owned, published, and copyrighted © 2009 Massachusetts Medical Society. All rights reserved.