The value of D-dimer in assessing severity and predicting long-term prognosis in patients with community acquired pneumonia
10.3760/cma.j.issn.1671-0282.2015.01.020
- VernacularTitle:D-二聚体对社区获得性肺炎病情及长期预后的判断
- Author:
Wei LONG
;
Gaozhong HUANG
;
Lijuan LI
;
Wentao SU
;
Lidong ZHAO
;
Pengcheng XING
;
Honglin KE
- Publication Type:Journal Article
- Keywords:
D-dimer;
Community acquired pneumonia;
Pneumonia severity index;
Procalcitonin;
C-reactive protein;
Prognosis
- From:
Chinese Journal of Emergency Medicine
2015;24(1):77-80
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of D-dimer in assessing severity and predicting longterm prognosis in patients with community acquired pneumonia (CAP).Methods From June 2009 to December 2010,a total of 189 patients with CAP were enrolled.After admission,D-dimer,procalcitonin (PCT) and C-reactive protein (CRP) were measured,and Pneumonia Severity Index (PSI) was calculated.They were assigned into two groups according to their D-dimer levels:high D-dimer levels group (D-dimer levels≥500 μg/L) and normal D-dimer levels group (D-dimer levels ＜ 500 μg/L).The followup time was one year.A Kaplan-Meier survive curve was constructed to assess the 1-year mortality,and multivariate logistic regression analysis were used to assess the value of D-dimer for predicting long-term prognosis.Results D-dimer levels increased with increasing PSI class [class Ⅰ-Ⅲ:378.37 μg/L (216.74,649.50) μg/L; class Ⅳ:673.41 μg/L (544.77,866.85) μg/L; class Ⅴ:831.58 μg/L (591.78,1066.39) μg/L,x2 =56.58,P ＜ 0.01].The Kaplan-Meier survival curve showed that 1-year mortality rate of high D-dimer levels group was higher than normal D-dimer levels group (log-rank test,x2 =52.51,P ＜ 0.01).The multivariate logistic regression analysis showed an independent relationship between higher D-dimer levels and long-term mortality (OR =2.05,95％ CI:1.48-2.61,P ＜ 0.01).Conclusion D-dimer is an independent predictor of severity and long-term prognosis in patients with CAP.
