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He, J.Q., Gao, Y.C., Yu, X.P., Zhang, X.L., Luo, Y.W., Wu, C.Y., Li, Y., Zhang, W.D., Chen, F. and Lü, S.Z. (2011) Syntax score predicts clinical outcome in patients with three-vessel coronary artery disease undergoing percutaneous coronary intervention. Chinese Medical Journal, 124, 704-709.

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• TITLE: Incremental value of preprocedural coronary computed tomographic angiography to classical coronary angiography for prediction of PCI complexity in left main stenosis

  AUTHORS: Imre Benedek, Monica Chitu, Istvan Kovacs, Bajka Balazs, Theodora Benedek

  KEYWORDS: Left Main; Syntax Score; Coronary Computed Tomographic Angiography

  JOURNAL NAME: World Journal of Cardiovascular Diseases, Vol.3 No.9, December 23, 2013

  ABSTRACT: Introduction: The aim of our study was to assess the incremental value of Coronary Computed Tomography Angiography (CCTA) added to classical coronary angiography, for complex characterization of coronary lesions and prediction of procedural complexity in patients with significant left main (LM) stenoses. Material and Methods: Thirty-six patients with LM disease were enrolled in the study, and each subject underwent CCTA followed by coronary angiography and percutaneous revascularization. Results: Logistic regression analysis indicated a good correlation between the angiographic-calculated and the CCTA-derived Syntax scores for the whole group (r = 0.87, p 11.5 vs 25.2 +/-11.3, p = 0.01 for CCTA). In the same time, Ca scoring was significantly higher and plaque volumes were significantly larger in cases requiring complex revascularization procedures (299.5 +/-359.6 vs 917.3 +/-495.4, p = 0.04 for calcium score, 79.7 +/-28.5 vs 108.7 +/-25.3 mm3, p = 0.002 for plaque volumes). Multivariate analysis identified the following CCTA parameters as significant predictors of increased risk for complex intervention in LM lesions: plaque volume (OR 8.00, p = 0.008), Ca scoring (OR 6.37, p = 0.02) and CCTA Syntax score (OR 6.87, p = 0.01). Conclusions: CCTA derived parameters provide incremental information to classical coronary angiography for preoperative assessment of lesion severity in complex left main stenosis. CCTA derived Syntax score significantly correlates with the classical Coronary Angiography Syntax score and identifies the subgroup of patients who will be more exposed to procedural complications during the revascularization interventions.