What are the criteria for risk stratification in patients with NSTE-ACS?
Risk stratification for patients with NSTE-ACS is based on their initial clinical presentation and the use of tools such as the TIMI, PURSUIT, and GRACE scores. Factors such as advanced age (>70 years of age), prior MI, revascularization, ST deviation, HF, depressed resting LV function (ie, LVEF 0.40) on noninvasive study, or noninvasive stress test findings, including magnetic resonance imaging, can aid in the identification of high-risk patients who could benefit from an invasive strategy. Low- and intermediate-risk patients who have been free of ischemia at rest or with low-level activity are recommended to receive a noninvasive stress test.