Evaluating the Potential of Routine Blood Tests to Identify the Risk of Deep Vein Thrombosis: A 1-Year Monocenter Cohort Study

Abstract

Study on 295 consecutive medical patients to evaluate the potential of routine blood tests to identify the risk of deep vein thrombosis (DVT). The tests included in a DVT risk stratification model system were erythrocyte sedimentation rate, antithrombin III, C-reactive protein, D-dimer, and N-terminal pro-brain natriuretic peptide. The DVT risk stratification system was moderately prognostic (area under the curve: 0.838; 95% confidence interval: 0.771-0.904; P < .001), whereas its performance was as follows-sensitivity, 100%; specificity, 20%; positive predictive value, 21%; and negative predictive value, 100%. The prevalence of DVT and DVT + superficial thrombophlebitis was 7.5% and 3.1%, respectively. These routine blood tests may prove helpful to stratify the DVT risk in medical patients.

Keywords: deep vein thrombosis; medical patients; risk; routine laboratory tests.