Benefit of glycoprotein IIb/IIIa inhibition in UA/NSTEMI based on positive or negative troponin levels. CAPTURE = c7E3 AntiPlatelet Therapy in Unstable REfractory angina to standard treatment; PRISM = Platelet Receptor inhibition for ISchemic Management; TnI = troponin I; TnT = troponin T. Data from Hamm CW, Heeschen C, Goldmann B, et al. Benefit of abciximab in patients with refractory unstable angina in relation to serum troponin T levels. N Engl J Med 1999;340:1623–9. Data from Heeschen C, Hamm CW, Goldmann B, et al. Troponin concentrations for stratification of patients with acute coronary syndromes in relation to therapeutic efficacy of tirofiban. Lancet 1999;354:1757–62. Reprinted with permission from Elsevier Science.