RT Journal Article T1 Should computed tomography coronary angiography be aborted when the calcium score exceeds a certain threshold in patients with chest pain? A1 De Agustín Loeches, José Alberto A1 Marcos-Alberca, Pedro A1 Fernández-Golfin, Covadonga A1 Feltes, Gisela A1 Nuñez-Gil, Ivan Javier A1 Almeria, Carlos A1 Rodrigo López, José Luis A1 Arrazola García, Juan Lorenzo A1 Pérez De Isla, Leopoldo A1 Macaya Miguel, Carlos A1 Zamorano Gómez, José Luis AB Background: There is ongoing debate about whether a computed tomography coronary angiography (CTCA)should be aborted when the calcium score (CS) exceeds a certain threshold in patients with chest pain. Theaim of this study was to discover whether specific “cutpoints” regarding coronary artery CS could be determined to predict severe coronary stenoses assessed by CTCA, thus identifying patients amenable to an invasive diagnostic approach.Methods: 294 consecutive patients with chest pain of uncertain cause who were referred for non-invasive diagnostic CTCA were included. Subjects underwent Agatston CS and CTCA using current 64-slice technology.Results: Severe coronary stenoses were noted in 75 of 294 (25.1%) patients on CTCA. A very high prevalence ofsevere coronary stenoses was found in patients with CS ≥400 (87.0%). The CS had area under the ROC curve0.86 to predict severe coronary stenoses on CTCA. The best discriminant cut-off point was CS ≥400 (sensitivityof 55.3%, specificity of 93.5, positive predictive value of 85.8%, negative predictive value of 84.0%). Multivariablelogistic regression analysis controlling for traditional risk factors showed CS ≥400 remained an independentpredictor of severe coronary stenoses on CTCA (OR 14.553, 95% confidence interval 4.043 to 52.384, pb0.001).Conclusions: CS can be used as a “gatekeeper” to CTCA in patients with chest pain. Due to the very high prevalence of severe coronary stenoses in patients with CS ≥400, further evaluation with CTCA is not warranted asthese patients should be referred to invasive coronary angiography, avoiding the repeated exposure to ionizingradiation and iodinated contrast. PB Elsevier SN 0167-5273 YR 2013 FD 2013 LK https://hdl.handle.net/20.500.14352/131341 UL https://hdl.handle.net/20.500.14352/131341 LA eng NO de Agustin, J. A., Marcos-Alberca, P., Fernández-Golfin, C., Feltes, G., Nuñez-Gil, I. J., Almeria, C., Rodrigo, J. L., Arrazola, J., Pérez de Isla, L., Macaya, C., & Zamorano, J. (2013). Should computed tomography coronary angiography be aborted when the calcium score exceeds a certain threshold in patients with chest pain?. International journal of cardiology, 167(5), 2013–2017. https://doi.org/10.1016/j.ijcard.2012.05.041 DS Docta Complutense RD 27 feb 2026