Clinical features and factors associated with short-term prognosis in patients with pulmonary embolism

Abstract

The aim – to study the clinical, anamnestic and instrumental parameters associated with short-term prognosis in patients with pulmonary embolism (PE). Materials and methods. This study was conducted from September 1, 2019 to December 31, 2020 on the basis of the city clinical hospital. The preliminary analysis included 187 patients with acute pulmonary embolism. The study found that 25 (13.3 %) patients died within 30 days (group I): 19 (76.0 %) patients belonged to a high risk of predicted early death and 6 (24.0 %) – to intermediate-high risk. For further analysis, a comparison group (group II) was formed and included 106 (56.7 %) patients who survived within 30 days of the onset of an acute episode of PE: 54 (50.9 %) patients belonged to high risk, 52 (49.1 %) – to intermediate high risk. All patients with pulmonary embolism received anticoagulant therapy according to the current ESC guidelines. Results. The average age of patients in group I was 69.08 ± 14.15 years and was significantly higher than in group II: 65.25 ± 13.29 (p = 0.0169). The proportion of high-risk patients was significantly greater in the І group, the proportion of patients of intermediate-high risk was significantly greater in group II (p = 0.0409). The incidence of classes IV and V according to the PESI index, assessed in patients of intermediate-high risk, was the same in both groups, while patients with the PESI index class III prevailed in group II (p = 0.0380). The risk factors for venous thromboembolism occurred more frequently in patients of group I, i.e. congestive heart failure (p = 0.0065) and obesity (p = 0.0482). Conclusions. There is a high mortality rate within 30 days (13.3 %) in hospitalized patients with acute PE, including 26 % of high-risk patients and 10.3 % of intermediate-high risk. Age over 65 years, the presence of congestive heart failure and obesity are independent factors that, according to uni- and multivariate logistic regression analysis, are associated with poor short-term prognosis in patients with PE. Key words: pulmonary embolism, venous thromboembolism, short-term prognosis, anticoagulant therapy.