Figure 50-16 Five-year survival curves for patients with [Angina <24 hrs (+)] versus those without [Angina <24 hrs (-)] prodromal angina in the 24 hours before infarction. (Redrawn from Ishihara M, Sato H, Tateishi H, et al: Implications of prodromal angina pectoris in anterior wall acute myocardial infarction: Acute angiographic findings and long-term prognosis. J Am Coll Cardiol 30:970–975, 1997.)