Abstract
We aimed to summarize the clinical feature and risk factors of patients suffering from pulmonary embolism (PE) in the elderly patients, and explore the change in D-dimer after anti-coagulant therapy. A total of 426 patients with PE admitted from August 2012 to January 2019 in the Cangzhou Central Hospital were analyzed in this retrospective study. A comparison of clinical features and risk factors was conducted between the elderly group and non-elderly groups. Blood levels of D-dimer, C-reactive protein (CRP), tumor necrosis factor-α and interferon-γ were measured before and 3days after anti-coagulant therapy in two groups. The most important risk factor for the elderly patients was stroke, while for non-elderly patients was deep vein thrombosis (DVT). After anti-coagulant therapy, the decreasing level of D-dimer and CRP showed statistically significant differences between the two groups. Between the elderly and non-elderly groups, the main clinical manifestations were similar. The risk factors of elderly patients were chronic obstructive pulmonary disease, malignant tumor, DVT and stroke. After anti-coagulant therapy, the content of D-dimer was lower than 3days ago. Blood levels of D-dimer and CRP may be potent screening markers for PE especially among elderly patients.
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