Risk assessment and management strategies in older patients with acute pulmonary embolism.

Introduction: Managing older patients with acute pulmonary embolism (PE) is challenging due to their underrepresentation in clinical trials, comorbidities and increased complication risk. This study evaluates risk assessment and management outcomes in older PE patients focussing on home and reperfusion treatment.

Methods: A retrospective analysis was conducted on patients aged ≥70 years diagnosed with acute PE at an academic medical centre (2015-2022).

Results: 242 patients with a mean age of 77 years were included. All 59 patients with negative Hestia criteria were discharged ≤24h, and in total 81 patients (35%) received home treatment. Among these 14-day mortality and recurrent venous-thromboembolism were 0% and major bleeding occurred in 1.3% (one patient, 95%CI 0.11-6.1). European Society of Cardiology (ESC) risk-classification showed 9 low-risk PE (3.9%), 199 intermediate-risk (87%), and 20 high-risk PE patients (8.8). In 5 of the 20 high-risk patients, hypotension was mainly caused by another condition, i.e. sepsis. Eight high-risk patients received reperfusion therapy. Fourteen-day mortality was 51% in high-risk patients (95%CI 27-71); 5 out of 8 patients receiving reperfusion treatment died within 5 days. Patients with an Acute Presenting Older Patient (APOP) score of ≥45% had higher 14-day mortality (28%; 95%CI 12-46) compared to <45% (3.2%; 95%CI 0.85-8.3; HR 10.2; 95%CI 2.6-39).

Conclusion: Selecting for home treatment using Hestia was safe for older PE patients in our cohort. Mortality in the high-risk group was high also when receiving reperfusion treatment. The ESC risk-classification and APOP score identified patients at higher mortality risk, suggesting their potential utility in clinical decision-making.