Abstract
Aim: To study approaches to the management of patients with pulmonary embolism at the hospital stage with varying degrees of risk of death in the clinical practice of Russian hospitals. Design: Registry, multicentre, prospective observational study. Materials and methods. The study included 571 patients (SIRENA registry database), in all patients the risk of death was calculated according to the Pulmonary Embolism Severity Index (PESI). A comparative analysis was carried out in three groups of patients: with low (PESI I + II class), intermediate (PESI III class) and high risk (PESI IV + V class). Results. Among patients with low and high risk for PESI who received thrombolytic therapy (TLT), fewer people died than among those who did not: 2 vs. 5.9%, respectively, and 13 vs. 30% (p = 0.01), respectively. In the group of intermediate-risk patients with TLT, all remained alive, and among patients without TLT, 25.8% died (p = 0.033). In patients at low risk for PESI, the most common cause of thrombolysis was massive thrombosis of the main branches and trunk of the pulmonary artery (PA) (3.9%), the first diagnosis of acute coronary syndrome with ST elevation (0.8%), and persistent signs of respiratory failure against the background of anticoagulant therapy (5.5%). At intermediate risk according to PESI, the most common reasons for thrombolysis were the presence of respiratory failure with low blood pressure (6.2%) and massive thrombosis of the pulmonary arteries (2.7%). Conclusion. In patients with intermediate and high risk according to the PESI index, a significant efficacy of systemic TLT in reducing the risk of in-hospital mortality has been proven. Patients with low and intermediate risk according to PESI need to conduct a more thorough analysis of the presence of comorbidities and risk factors, additional instrumental and laboratory parameters, aggravating factors (central massive pulmonary thrombosis in combination with a respiratory failure clinic), followed by consideration of the possibility and feasibility of TLT. Keywords: Pulmonary Embolism Severity Index, pulmonary embolism, SIRENA registry, thrombolysis.
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