Analysis Of Clinical Features Of Pulmonary Embolism And Pneumonia

Objective: To collect the clinical data of pulmonary embolism(PE)and pneumonia,analyze its clinical features,and explore the way to avoid misdiagnosis of pulmonary embolism and pneumonia.Methods: Retrospective analysis in the clinical data of 88 patients with pneumonia,122 patients with pulmonary embolism,and 108 patients with pneumonia combined with pulmonary embolism,who firstly diagnosed in First Affiliated Hospital of Chongqing Medical University from June 2017 to December 2017,compare the clinical value of the clinical symptoms and laboratory indexes in the identification of pulmonary embolism and pneumonia.Results: The proportion of cough and sputum in pulmonary embolism group was lower than that in pneumonia group and pulmonary embolism combined with pneumonia group.The difference was statistically significant(P<0.001).There was no significant difference in dyspnea among three groups(P>0.05).The white blood cell count,neutrophil percentage,and C reactive protein(CRP)in the three groups hadsignificant difference(P<0.05).The white blood cell count,neutrophil percentage and CRP value in the pulmonary embolism combined with pneumonia group were the highest.The simple pulmonary embolism group was lower than the simple pneumonia group.There was no significant difference in procalcitonin(PCT)among the three groups.D-dimer value measured on admission of simple pneumonia group was lower than that in pulmonary embolism group and pulmonary embolism combined with pneumonia(P<0.05).There was no difference between simple pulmonary embolism and pulmonary embolism combined with pneumonia(P>0.05).The D-dimer in patients with simple pulmonary embolism and pulmonary embolism combined with pneumonia decreased about 3 days after treatment(P>0.05).The median D-dimer decreased after treatment in the simple pneumonia group,but the difference was not statistically significant(P>0.05).The area under the curve of the ROC curve was 0.862,and the cut-off value of D-dimer was 2.6 mg/L FEU,suggesting that D-dimer over this value should be highly suspected as pulmonary embolism or combined pulmonary embolism.Conclusion: The proportions of cough and sputum and the total number of white blood cells,neutrophil percentage,and CRP in patients with pulmonary embolism were lower than those in pneumonia.However,the D-dimer levels in patients with simple pulmonary embolism or combined pulmonary embolism were significantly higher than those withsimple pneumonia.After treatment,the level of D-dimer was significantly reduced,which has certain clinical value in the identification of pulmonary embolism and pneumonia.