Abstract: . . .  an outpatient basis if the evaluation can be completed within 72 hours after discharge. 47 High-risk patients Figure 4. Incidence of the Failure of Medical Therapy According to the Number of Risk Factors Present on Admission. In patients treated conservatively, the incidence of the failure of medical therapy, which led to prompt coronary angiography and revascularization, increased substantially as the number of base-line risk factors increased. These factors included the pres- ence of ST-segment depression on admission, a history of an- gina, older age, a family history of coronary artery disease, and the use of aspirin or heparin. P<0.001 for the comparison among the groups. Adapted from Stone et al., 129 with the permission of the publisher. 0 100 0 6 20 40 60 80 1 2 3 P<0.001 4 5 No. of . . .
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