Analysis Of CT Pulmonary Embolism Index Correlation Factors In Acute Pulmonary Embolism

Objective: To analyze the correlation between Qanadli pulmonary embolism index of CT pulmonary angiography in patients with acute pulmonary embolism and the general condition,clinical symptoms,serological examination,clinical risk stratification and treatment methods.Methods: The present study retrospectively analyzed 124 cases of acute pulmonary embolism(APE)diagnosed by CTPA in the First Affiliated Hospital of Fujian Medical University from July 2015 to January 2020 due to dyspnea,syncopal,chest pain,hemoptysis,etc.The general data,clinical symptoms,serological markers,imaging data,risk score of pulmonary embolism and treatment methods of patients were collected.The pulmonary artery obstruction index(PAOI)of the patients was calculated using the Qanadli design method.The correlation between PAOI and the above indexes was analyzed.Results: The results showed as follows: 1.The proportion of smoking,lung infection and length of hospital stay in mild obstruction group was higher than that in moderate and severe obstruction group(P < 0.05).2.The incidence of dyspnea,chest pain and hemoptysis in moderate and severe obstruction group was significantly higher than that in mild obstruction group(P<0.05).3.The results of laboratory analysis showed that the blood glucose in the severe obstruction group was higher than that in the mild and moderate obstruction group(P<0.05),while the D-dimer in the mild obstruction group was higher than that in the moderate obstruction group(P<0.05).4.The clinical risk stratification of APE was correlated with the degree of pulmonary embolism,and the higher the degree of pulmonary embolism,the higher the clinical risk stratification was(P < 0.05).5.In the selection of treatment methods,the proportion of patients in the moderate and severe obstruction group receiving thrombolytic therapy was higher than that in the mild obstruction group(P < 0.05).6.The frequency and severity of chief complaint in moderate and severe obstruction group were higher than those in mild obstruction group,and the difference was statistically significant(P<0.05).Conclusion: The degree of pulmonary artery obstruction was associated with smoking,lung infection,length of hospital stay and other factors.The higher the degree of pulmonary artery obstruction,the higher the proportion of dyspnea,chest pain and hemoptysis(the triad of pulmonary embolism).Considering that patients with mild obstruction are usually treated with anticoagulation alone,their D-dimer after treatment is higher than that of patients with moderate obstruction,while hyperglycemia can cause damage to blood vessels and increase the risk of thrombosis.Therefore,the higher the degree of blood glucose,the greater the influence on the area of pulmonary embolism.PAOI,as the calculation index of pulmonary embolism degree,is closely related to clinical risk stratification of APE,the greater the degree of pulmonary embolism,the higher the clinical risk stratification,and the higher the gist for thrombolytic therapy.It is helpful for subsequent clinicians to make timely diagnosis of patients’ dangerous conditions according to CT PAOI and guide early treatment plan,which has certain clinical significance for improving the symptoms and prognosis of APE patients.