Figure 52-3a Algorithm recommended by the American College of Cardiology/American Heart Association Task Force on Practice Guidelines for a stepwise approach to preoperative assessment. Subsequent care may include cancellation or delay of surgery, coronary revascularization followed by noncardiac surgery, or intensified care. (Adapted from Eagle KA, Berger PB, Calkins H, et al: ACC/AHA Guideline Update for Perioperative Cardiovascular Evaluation for Noncardiac Surgery—Executive Summary: A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Update the 1996 Guidelines on Perioperative Cardiovascular Evaluation for Noncardiac Surgery). J Am Coll Cardiol 39:542–553, 2002.)