• Rev Port Cardiol · Jan 2021

    Multicenter Study

    Coronary artery calcium scoring and cardiovascular risk reclassification in patients undergoing coronary computed tomography angiography.

    • Daniel Matos, António Miguel Ferreira, Pedro de Araújo Gonçalves, Francisco Gama, Pedro Freitas, Sara Guerreiro, Gonçalo Cardoso, António Tralhão, Hélder Dores, João Abecasis, Hugo Marques, Carla Saraiva, and Miguel Mendes.
    • Cardiology Department, Hospital de Santa Cruz, Carnaxide, Portugal.
    • Rev Port Cardiol. 2021 Jan 1; 40 (1): 25-30.

    IntroductionCoronary artery calcium (CAC) scoring is used for both cardiovascular risk reclassification and as a gatekeeper for coronary computed tomography angiography (CCTA). The aims of this study were to assess to what extent CAC score results can reclassify the cardiovascular risk of patients without obstructive coronary artery disease (CAD) on CCTA, and to measure the proportion of these patients whose primary prevention medication is changed after the exam.MethodsIn a retrospective analysis of a multicenter registry of individuals who underwent CCTA for suspected CAD during a two-year period, the Systematic COronary Risk Evaluation (SCORE) and Multi-Ethnic Study of Atherosclerosis (MESA) risk scores were calculated for each individual. In a subset of 184 patients, we also assessed the prescription of statins and antiplatelet agents before and after the test.ResultsA total of 467 patients (248 women, mean age 60±9.10 years) were included. Median CAC score was 0 (interquartile range 0-40). Overall, 249 patients (53%) and 159 (34%) were classified as being of moderate/intermediate risk according to the SCORE and MESA risk scores, respectively. Among these, 29 (12%) and 30 (19%) patients had CAC score >100 AU, making them eligible for statin therapy. The inclusion of CAC scoring in the MESA score resulted in the reclassification of 215 patients (46%). The proportion of patients who were prescribed statins or antiplatelet agents did not change significantly after the test.ConclusionCAC scoring can reclassify cardiovascular risk in a significant proportion of patients undergoing CCTA. Despite this, little change was seen in the prescription of statins and antiplatelet agents.Copyright © 2020 Sociedade Portuguesa de Cardiologia. Publicado por Elsevier España, S.L.U. All rights reserved.

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