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J Am Coll Cardiol, 2000; 36:668-673
© 2000 by the American College of Cardiology Foundation
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CLINICAL STUDY

Medical therapy versus coronary angioplasty in stable coronary artery disease: a critical review of the literature

Roger S. Blumenthal, MD, FACCa, Gregory Cohn, MDb and Steven P. Schulman, MDa

a Division of Cardiology, The Johns Hopkins Hospital, Baltimore, Maryland, USA
b Department of Medicine, Cleveland Clinic Florida, Fort Lauderdale, Florida, USA

Manuscript received December 8, 1999; revised manuscript received March 7, 2000, accepted April 14, 2000.

Reprint requests and correspondence to: Dr. Roger S. Blumenthal, Preventive Cardiology, Johns Hopkins Hospital, 600 North Wolfe Street, Carnegie 538, Baltimore, Maryland 21287
rblument{at}jhmi.edu

The recent publication of the Atorvastatin Versus Revascularization Treatment (AVERT) trial has renewed debate on the optimal management strategy for relatively stable patients with coronary artery disease. Currently, coronary angiography and percutaneous coronary intervention are often performed in stable patients with good exercise tolerance who have not been treated with proven medications such as aspirin, statins and beta-adrenergic blocking agents in conjunction with comprehensive lifestyle modification. We review the results of prior trials comparing medical therapy with angioplasty and assess their strengths and limitations and then make conclusions about the aggregate data. Next, we describe the ongoing Clinical Outcome Utilizing Revascularization and Aggressive Drug Evaluation (COURAGE) trial, which will be the largest of the studies comparing optimal medical therapy and percutaneous revascularization. This study will employ intensive medical management in all patients with coronary disease, and the incremental benefit of state of the art revascularization techniques in terms of clinical event reduction, quality of life issues and cost-effectiveness will be addressed. For now, aggressive medical therapy and revascularization should be viewed as complementary rather than opposing strategies. All patients with coronary heart disease should receive proven medical and lifestyle prescriptions to favorably alter the atherosclerotic process. Percutaneous revascularization without comprehensive risk factor modification is a suboptimal therapeutic strategy.

Abbreviations and Acronyms
  ACIP = Asymptomatic Cardiac Ischemia Pilot trial
  AVERT = Atorvastatin Versus Revascularization Treatment trial
  CABG = coronary artery bypass grafting
  CAD = coronary artery disease
  CCS = Canadian Cardiovascular Society
  CHD = coronary heart disease
  COURAGE = Clinical Outcomes Utilizing Revascularization and Aggressive Drug Evaluation trial
  LAD = left anterior descending coronary artery
  LDL-C = low-density lipoprotein cholesterol
  MASS = Medicine, Angioplasty or Surgery Study
  MI = myocardial infarction
  PCI = percutaneous coronary intervention
  PTCA = percutaneous transluminal coronary angioplasty
  RITA-2 = Second Randomized Intervention Treatment of Angina trial




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