Lanza GA, Mencarelli E, Melita V, et al. - Researchers sought to determine the value of the increase in high-sensitive troponin T (hs-TnT) levels after exercise stress test (EST) in identifying patients with obstructive coronary artery disease (CAD) and in predicting symptom recurrence during short term follow-up among patients admitted with suspected unstable angina. Sixty-nine consecutive patients admitted to the emergency room with a suspicion of unstable angina (acute chest pain but confirmed normal serum levels of cardiac troponins) underwent maximal treadmill EST. The whole population displayed an increase in hs-TnT after EST compared with baseline. This increase seemed largely independent of most clinical and laboratory variables. Thus, hs-TnT assessed after EST seems to have no value in recognizing patients with obstructive CAD in this kind of patients.