• 1. Emergeney Intensive Care Unit, Affiliated Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China;
  • 2. ;
MiYuhong, Email: myhicu@163.com
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Objective To explore the early predictive value of Wells score and D-dimer for acute pulmonary embolism. Methods Eighty-two cases with acute pulmonary embolism comfirmed by computed tomography pulmonary angiography and (or) lung ventilation/perfusion scan were retrospectively studied from October 2013 to October 2014 in our hospital. Another 82 cases without acute pulmonary embolism in the chest pain center simultaneously were selected as control group. The data on admission were analyzed including Wells score, D-dimer, pH, PCO2, PO2, P(A-a)O2, brain natriuretic peptide, troponin I of two groups of patients. Relevant variables were selected by multivariate logistic regression analysis. The receiver operating characteristic (ROC) curve was made by sensitivity as the ordinate and 1 minus specificity as abscissa. The area under ROC curve (AUC) for relevant variables was calculated and the variable with higher AUC was selected. The best threshold, sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were achieved from the ROC curves. Results The multivariate logistic regression analysis showed that Wells score (OR=8.114, 95%CI 1.894-34.761, P=0.005) and D-dimer (OR=1.009, 95%CI 1.001-1.017, P=0.021) could predict APE early. The AUC, sensitivity, specificity, PPV, NPV of Wells score for the early prediction of patients with acute pulmonary embolism were 0.990, 50.0%, 100.0%, 100.0%, 66.7%, respectively. The AUC, sensitivity, specificity, PPV, NPV of D-dimer for the early prediction of patients with acute pulmonary embolism were 0.986, 95.1%, 97.6%, 97.5%, 95.2%, respectively. Conclusion Wells score and D-dimer have high predictive value in patients with acute pulmonary embolism, and can be used in preliminary screening of acute pulmonary embolism in the emergency department.

Citation: Liang Ying, Mi Yuhong, Yang Geng, Yan Shufeng, Liu Shuang. The Predictive Value of Wells Score and D-dimer on Acute Pulmonary Embolism. Chinese Journal of Respiratory and Critical Care Medicine, 2016, 15(3): 245-249. doi: 10.7507/1671-6205.2016058 Copy

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