One-year results of percutaneous myocardial revascularization for refractory angina pectoris

Three hundred thirty patients with refractory class HI to IV angina turned down for conventional revascularization were randomized to receive continued medical therapy or percutaneous myocardial revascularization plus medications. At I year, percutaneous myocardial revascularization significantly improved exercise tolerance, angina class, quality of life, and freedom from major adverse cardiac events compared with continued medical treatment.