%0 Journal Article %T Should the cut-off value of D-dimer be elevated to exclude pulmonary embolism in acute exacerbation of COPD? %A Akpınar, Evrim Eylem %A Hoşgün, Derya %A Doğanay, Beyza %A Ataç, Gökçe Kaan %A Gülhan, Meral %J Journal of Thoracic Disease %D 2013 %B 2013 %9 %! Should the cut-off value of D-dimer be elevated to exclude pulmonary embolism in acute exacerbation of COPD? %K %X Objective: The aim of this study was to evaluate the D-dimer levels in patients with chronic obstructive pulmonary disease (COPD) exacerbation with and without pulmonary embolism (PE) and to attempt to define a new cut-off value for D-dimer to exclude the diagnosis of PE in patients with COPD exacerbation. Methods: This cross-sectional study was performed between the June 2012 and January 2013. The COPD patients who were admitted to the emergency department with acute exacerbation were consecutively included. D-dimer levels were measured upon admission. All patients underwent computed tomography angiography (CTA) and Doppler ultrasonography (US) of the lower extremities. Results: A total of 148 patients were enrolled. Fifty-three patients (36%) who did not have PE had higher than normal (>0.5 pg/mL) D-dimer levels. The D-dimer levels of the COPD patients with PE were significantly higher than those of the patients without PE (2.38±2.80 vs. 1.06±1.51 pg/mL) (P %U https://jtd.amegroups.org/article/view/1376 %V 5 %N 4 %P 430-434 %@ 2077-6624