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• W2806978960 abstract "Background Peripheral arterial disease (PAD) is a global health problem that is frequently underdiagnosed and undertreated. Noninvasive tools to predict the presence and severity of PAD have limitations including inaccuracy, cost, or need for intravenous contrast and ionizing radiation. Hypothesis A clinical/biomarker score may offer an attractive alternative diagnostic method for PAD. Methods In a prospective cohort of 354 patients referred for diagnostic peripheral and/or coronary angiography, predictors of ≥50% stenosis in ≥1 peripheral vessel (carotid/subclavian, renal, or lower extremity arteries) were identified from >50 clinical variables and 109 biomarkers. Machine learning identified variables predictive of obstructive PAD; a score derived from the final model was developed. Results The score consisted of 1 clinical variable (history of hypertension) and 6 biomarkers (midkine, kidney injury molecule‐1, interleukin‐23, follicle‐stimulating hormone, angiopoietin‐1, and eotaxin‐1). The model had an in‐sample area under the receiver operating characteristic curve of 0.85 for obstructive PAD and a cross‐validated area under the curve of 0.84; higher scores were associated with greater severity of angiographic stenosis. At optimal cutoff, the score had 65% sensitivity, 88% specificity, 76% positive predictive value (PPV), and 81% negative predictive value (NPV) for obstructive PAD and performed consistently across vascular territories. Partitioning the score into 5 levels resulted in a PPV of 86% and NPV of 98% in the highest and lowest levels, respectively. Elevated score was associated with shorter time to revascularization during 4.3 years of follow‐up. Conclusions A clinical/biomarker score demonstrates high accuracy for predicting the presence of PAD." @default.
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• W2806978960 date "2018-06-14" @default.
• W2806978960 modified "2023-09-26" @default.
• W2806978960 title "A clinical and proteomics approach to predict the presence of obstructive peripheral arterial disease: From the Catheter Sampled Blood Archive in Cardiovascular Diseases (CASABLANCA) Study" @default.
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• W2806978960 doi "https://doi.org/10.1002/clc.22939" @default.
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