• Int. J. Cardiol. · Oct 2009

    Comparative Study

    Cardiac computed tomographic angiography for risk stratification and prediction of late cardiovascular outcome events in patients with a chest pain syndrome.

    • Ronen Rubinshtein, David A Halon, Tamar Gaspar, Nathan Peled, and Basil S Lewis.
    • Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center and the Ruth and Bruce Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
    • Int. J. Cardiol. 2009 Oct 2;137(2):108-15.

    BackgroundContrast-enhanced multidetector cardiac computed tomographic angiography (CCTA) has high sensitivity and specificity for diagnosing anatomic coronary stenoses, but its role in predicting late clinical outcome events has not been well studied.MethodsWe examined predictive value of CCTA for late major adverse cardiovascular (CV) outcome events (MACE)(CV death, myocardial infarction, myocardial revascularization) (follow-up 18.2+/-6.3, range 9-30 months) in 545 consecutive symptomatic patients (368 (68%) men, 177 (32%) women) with clinical suspicion, but without previously diagnosed, coronary artery disease (CAD) who underwent 40- or 64-channel CCTA.ResultsMACE occurred in 53/545 (9.7%) patients (early 30 day CCTA-driven events excluded): CV death/myocardial infarction in 3/327 (0.9%) patients with no coronary luminal narrowing >25% (group 1), in 3/127 (2.4%) with >or=1 luminal narrowing(s) of 26-69% (group 2) and in 9/91 (9.9%) with >or=1 coronary luminal narrowing(s) of >or=70% (group 3) (p<0.0001). CV death/myocardial infarction/revascularization occurred in 5/327 (1.5%) group 1 patients, 19/127 (14.9%) group 2 and 29/91 (31.9%) group 3 (p<0.0001). Multivariate analysis (adjusting for age, gender, coronary risk factors and coronary calcium score) identified CCTA stenosis (>25%) as a powerful independent predictor of MACE (HR 10.9, 95%CI 4.1-29.0, p<0.0001).ConclusionsCCTA was useful to predict late clinical outcome events in patients undergoing evaluation of a chest pain syndrome.

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