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- W3100640177 abstract "The prevalence of obstructive coronary artery disease (CAD) in symptomatic patients referred for diagnostic testing has declined, warranting optimization of individualized diagnostic strategies. This study sought to present a simple, clinically applicable tool enabling estimation of the likelihood of obstructive CAD by combining a pre-test probability (PTP) model (Diamond-Forrester approach using sex, age, and symptoms) with clinical risk factors and coronary artery calcium score (CACS). The new tool was developed in a cohort of symptomatic patients (n = 41,177) referred for diagnostic testing. The risk factor–weighted clinical likelihood (RF-CL) was calculated through PTP and risk factors, while the CACS–weighted clinical likelihood (CACS-CL) added CACS. The 2 calculation models were validated in European and North American cohorts (n = 15,411) and compared with a recently updated PTP table. The RF-CL and CACS-CL models predicted the prevalence of obstructive CAD more accurately in the validation cohorts than the PTP model, and markedly increased the area under the receiver-operating characteristic curves of obstructive CAD: for the PTP model, 72 (95% confidence intervals [CI]: 71 to 74); for the RF-CL model, 75 (95% CI: 74 to 76); and for the CACS-CL model, 85 (95% CI: 84 to 86). In total, 38% of the patients in the RF-CL group and 54% in the CACS-CL group were categorized as having a low clinical likelihood of CAD, as compared with 11% with the PTP model. A simple risk factor and CACS-CL tool enables improved prediction and discrimination of patients with suspected obstructive CAD. The tool empowers reclassification of patients to low likelihood of CAD, who need no further testing." @default.
- W3100640177 created "2020-11-23" @default.
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- W3100640177 date "2020-11-01" @default.
- W3100640177 modified "2023-10-14" @default.
- W3100640177 title "Incorporating Coronary Calcification Into Pre-Test Assessment of the Likelihood of Coronary Artery Disease" @default.
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- W3100640177 doi "https://doi.org/10.1016/j.jacc.2020.09.585" @default.
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