- Clinical indication for revascularization defined as follows: rest or low-threshold angina after MI; severe inducible ischemia on low level exercise or pharmacological stress testing (ST decreased ≥2 mm or inability to complete stage 1 or achieve 3-4 metabolic equivalents without angina, hypotension, or reversible perfusion defects in multiple territories or decreased wall motion thickening in >2 segments on echocardiogram); left main coronary disease (≥50% stenosis); or triple-vessel disease (3 major epicardial coronaries with >70% stenoses)