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Atherothrombotic risk stratification after acute myocardial infarction: the TIMI Risk Score for Secondary Prevention (TRS‐2P) in the light of the FAST‐MI registries

Abstract : Background Guidelines recommend using risk stratification tools in acute myocardial infarction (AMI) to assist decision-making. The Thrombolysis in Myocardial Infarction Risk Score for Secondary Prevention (TRS-2P) has been recently developed to characterize long-term risk in patients with MI. Hypothesis We aimed to assess the TRS-2P in the French Registry of Acute ST Elevation or non-ST elevation MI registries. Methods We used data from three 1-month French registries, conducted 5 years apart, from 2005 to 2015, including 13 130 patients with AMI (52% ST-elevation myocardial infarction [STEMI]). Atherothrombotic risk stratification was performed using the TRS-2P score. Patients were divided in to three categories: G1 (low-risk, TRS-2P = 0/1); G2 (intermediate-risk, TRS-2P = 2); and G3 (high-risk, TRS-2P >= 3). Baseline characteristics and outcomes were analyzed according to TRS-2P categories. Results A total of 12 715 patients (in whom TRS-2P was available) were included. Prevalence of G1, G2, and G3 was 43%, 24%, and 33% respectively. Clinical characteristics and management significantly differed according to TRS-2P categories. TRS-2P successfully defined residual risk of death at 1 year (C-statistic 0.78): 1-year survival was 98% in G1, 94% in G2, and 78.5% in G3 (P < 0.001). Using Cox multivariate analysis, G3 was independently associated with higher risk of death at 1 year (hazard ratio [HR] 4.61; 95% confidence interval [CI]: 3.61-5.89), as G2 (HR 2.08; 95% CI: 1.62-2.65) compared with G1. The score appeared robust and correlated well with mortality in STEMI and NSTEMI populations, as well as in each cohort separately. Conclusions The TRS-2P appears to be a robust risk score, identifying patients at high risk after AMI irrespective of the type of MI and historical period.
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Etienne Puymirat, Marc P Bonaca, Maxime Fumery, Victoria Tea, Nadia Aissaoui, et al.. Atherothrombotic risk stratification after acute myocardial infarction: the TIMI Risk Score for Secondary Prevention (TRS‐2P) in the light of the FAST‐MI registries. Clinical Cardiology, Wiley, 2018, 42 (2), pp.227-234. ⟨10.1002/clc.23131⟩. ⟨hal-02899009⟩

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