• Z Cheng, M Yang, Z Zhang, L L Dai, X Wang, L Q Jia, X G Jing, T C Jiang, L An, M Liu, Y J Yang, W F Li, Y Li, and D Sun.
• Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
• Zhonghua Yi Xue Za Zhi. 2018 Dec 25; 98 (48): 3925-3929.

AbstractObjective: To evaluate the predictive value of Wells score, revised Geneva score combined with D-dimer for the risk of pulmonary embolism in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Methods: In this study, 234 AECOPD patients underwent CT pulmonary angiography from March 1, 2013 to December 31, 2015 in the First Affiliated Hospital of Zhengzhou University. The basic data of the patients were collected and the patients were classified into AECOPD combined with pulmonary embolism group(pulmonary embolism group) and AECOPD group according to CT pulmonary angiography results. All patients were scored by Wells score and revised Geneva score. The receiver operating characteristic (ROC) curves were generated and the Z test was applied to evaluate the predictive value by comparing the area under the ROC curves (AUC). Results: Totally 32(13.7%) patients had pulmonary embolism out of the 234 AECOPD patients. The AUC by Wells score, revised Geneva score, D-dimer, Wells score + D-dimer, revised Geneva score + D-dimer were 0.869 (95% CI: 0.789-0.949), 0.710 (95% CI: 0.588-0.832), 0.866 (95% CI: 0.790-0.941), 0.926 (95% CI: 0.874-0.977), 0.855 (95% CI: 0.751-0.959). The AUC of Wells score and D-dimer were significantly greater than that of revised Geneva score (Z=2.14, 2.12, both P<0.05); the AUC of Wells score + D-dimer was significantly greater than revised Geneva score + D-dimer (Z=2.73, P<0.05). Conclusion: The predictive value of Wells score + D-dimer for pulmonary embolism in AECOPD patients is higher than revised Geneva score + D-dimer.

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