Open AccessAssociation between features of COPD and risk of venous thromboembolism
Author(s) -
Dong Weigang,
Zhu Yaqian,
Du Yan,
Ma Shuping
Publication year - 2019
Publication title -
the clinical respiratory journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.789
H-Index - 33
eISSN - 1752-699X
pISSN - 1752-6981
DOI - 10.1111/crj.13051
Subject(s) - medicine , copd , logistic regression , venous thromboembolism , retrospective cohort study , risk factor , observational study , intensive care medicine , thrombosis
Chronic obstructive pulmonary disease (COPD) is associated with risk of venous thromboembolism (VTE) events. A detailed understanding of which clinical features of COPD increase risk of VTE events is needed. Objectives To investigate the association between features of COPD and risk of venous thromboembolism. Methods A retrospective observational clinical study was conducted on 551 consecutive COPD patients visiting the Department of Respiratory and Critical Care Medicine of Tianjin Chest Hospital between February 2014 and April 2018. Finally, 151 patients were eligible for inclusion. Of these, 29 patients had COPD with VTE and 121 patients had COPD without VTE. Patient informations regarding age, gender, BMI, smoking history, smoking status (package/year), COPD‐related symptoms, lung function, number of acute exacerbations and imaging visual emphysema were gathered. Results Among the 29 VTE patients, 18 patients had PE and five had DVT, while 6 patients had simultaneous PE and DVT. There were statistically significant differences in GOLD grade, Imaging visual emphysema, and frequent acute exacerbations between the two groups. Multivariate logistic regression analysis showed that after adjustment for gender, age, BMI and smoking history, there were statistically significant for visible emphysema (OR = 3.54, 95% CI: 1.13‐11.08; P = 0.03) and GOLD grade (OR = 1.77, 95% CI: 1.04‐3.01; P = 0.035), but not for frequent acute exacerbations (OR = 1.65, 95% CI: 0.62‐4.38; P = 0.31). Conclusions Visual emphysema is an independent risk factor for VTE events and the risk of VTE in COPD patients increases with the degree of airway obstruction. However, there is no evidence of an association between exacerbation frequency and VTE events.