ABC | Volume 113, Nº1, July 2019

Original Article Gil et al Risks scores in acute coronary syndromes Arq Bras Cardiol. 2019; 113(1):20-30 Figure 2 – Receiver operating characteristic (ROC) curves regarding risks scores and in-hospital mortality, in the STEMI and NSTEMI population individually. TIMI: Thrombolysis in Myocardial Infarction; PURSUIT: Platelet glycoprotein IIb/IIa in Unstable angina: Receptor Suppression Using Integrilin Therapy; Simple Risk Index; GRACE: Global Registry of Acute Coronary Events; EMMACE: Evaluation of the Methods and Management of Acute Coronary Events; C-ACS: Canada Acute Coronary Syndrome. Figure 3 – Receiver operating characteristic (ROC) curves regarding risks scores and all-cause mortality and non-fatal ACS at one-year follow-up. TIMI: Thrombolysis in Myocardial Infarction; PURSUIT: Platelet glycoprotein IIb/IIa in Unstable angina: Receptor Suppression Using Integrilin Therapy; Simple Risk Index; GRACE: Global Registry of Acute Coronary Events; EMMACE: Evaluation of the Methods and Management of Acute Coronary Events; C-ACS: Canada Acute Coronary Syndrome. The Journal of the American College of Cardiology published in 2016 a new risk score. 11 This risk score was developed using data from the ACTION Registry–GWTG, which included a total of 145,952 patients from more than 300 hospitals from the United States of America admitted for both STEMI and NSTEMI. 11 The ACTION Registry–GWTG risk score performed well in the general population (c-statistic 0.88), as well as in specific subsets of patients. 11 This score appeared to be a good alternative to the GRACE score. Finally, in 2017, the Portuguese Journal of Cardiology presented a new and simple risk score. 3 The ProACS risk score, formulated by Timóteo et al. 3 was developed using the Portuguese Registry of Acute Coronary Syndromes. The riskmodel was developed from the data of 17,380 patients. Internal and external validation of the score was done using 12,701 and 8,532 patients, respectively. 3 Timóteo et al. 3 built a simple risk score with only 4 variables, age, systolic blood pressure, Killip class and ST-segment elevation (information 27