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  • A New Integrated Clinical-B...
    Caselli, Chiara, PhD; Rovai, Daniele, MD; Lorenzoni, Valentina, MSc; Carpeggiani, Clara, MD; Teresinska, Anna, PhD; Aguade, Santiago, MD; Todiere, Giancarlo, MD; Gimelli, Alessia, MD; Schroeder, Stephen, MD; Casolo, Giancarlo, MD; Poddighe, Rosa, MD, PhD; Pugliese, Francesca, MD; Le Guludec, Dominique, MD; Valente, Serafina, MD; Sambuceti, Gianmario, MD; Perrone-Filardi, Pasquale, MD; Del Ry, Silvia, MSc; Marinelli, Martina, PhD; Nekolla, Stephan, PhD; Pietila, Mikko, MD; Lombardi, Massimo, MD; Sicari, Rosa, MD; Scholte, Arthur, MD, PhD; Zamorano, José, MD; Kaufmann, Philipp A., MD; Underwood, S. Richard, MD; Knuuti, Juhani, MD; Giannessi, Daniela, MSc; Neglia, Danilo, MD, PhD

    Canadian journal of cardiology, 06/2015, Letnik: 31, Številka: 6
    Journal Article

    Abstract Background In patients with chronic angina-like chest pain, the probability of coronary artery disease (CAD) is estimated by symptoms, age, and sex according to the Genders clinical model. We investigated the incremental value of circulating biomarkers over the Genders model to predict functionally significant CAD in patients with chronic chest pain. Methods In 527 patients (60.4 years, standard deviation, 8.9 years; 61.3% male participants) enrolled in the European Ev aluation of In tegrated Cardiac I maging (EVINCI) study, clinical and biohumoral data were collected. Results Functionally significant CAD—ie, obstructive coronary disease seen at invasive angiography causing myocardial ischemia at stress imaging or associated with reduced fractional flow reserve (FFR < 0.8), or both—was present in 15.2% of patients. High-density lipoprotein (HDL) cholesterol, aspartate aminotransferase (AST) levels, and high-sensitivity C-reactive protein (hs-CRP) were the only independent predictors of disease among 31 biomarkers analyzed. The model integrating these biohumoral markers with clinical variables outperformed the Genders model by receiver operating characteristic curve (ROC) (area under the curve AUC, 0.70 standard error (SE), 0.03 vs 0.58 SE, 0.03, respectively, P < 0.001) and reclassification analysis (net reclassification improvement, 0.15 SE, 0.07; P  = 0.04). Cross-validation of the ROC analysis confirmed the discrimination ability of the new model (AUC, 0.66). As many as 56% of patients who were assigned to a higher pretest probability by the Genders model were correctly reassigned to a low probability class (< 15%) by the new integrated model. Conclusions The Genders model has a low accuracy for predicting functionally significant CAD. A new model integrating HDL cholesterol, AST, and hs-CRP levels with common clinical variables has a higher predictive accuracy for functionally significant CAD and allows the reclassification of patients from an intermediate/high to a low pretest likelihood of CAD.