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BACKGROUND: The ATI (Age-Thrombus burden-Index of Microvascular Resistance [IMR]) score was developed to predict suboptimal myocardial reperfusion in patients with ST-Elevation Myocardial Infarction (STEMI). When applied in the early phases of revascularization (e.g. before stent insertion), it predicts which patients are most likely to have a larger infarct size. In this study, we assessed the score's utility in determining which STEMI patients are at highest risk of clinical events during follow-up. METHODS: The ATI-score was calculated prospectively in 254 STEMI patients using age (>50 years = 1 point), pre-stenting IMR (>40 U and 

Original publication




Journal article


Int J Cardiol

Publication Date





1 - 6


Microvascular dysfunction, Prognosis, Risk score, STEMI, Humans, Microcirculation, Middle Aged, Myocardial Infarction, Percutaneous Coronary Intervention, ST Elevation Myocardial Infarction, Thrombosis, Treatment Outcome