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Background Few data are available on the long-term course and predictors of quality of life (QoL) after acute pulmonary embolism (PE). Aims To evaluate the kinetics and determinants of QoL at 3 and 12 months after acute PE. Methods The Follow-Up after acute pulmonary embolism (FOCUS) study prospectively followed consecutive adult patients with objectively diagnosed PE. For this analysis, we considered patients who completed the Pulmonary Embolism QoL (PEmb-QoL) Questionnaire at two predefined visits 3 and 12 months after PE. PEmb-QoL, studied as total score and in its six dimensions, ranges from 0% (best QoL) to 100% (worst QoL). We studied the course of PEmb-QoL and the impact of baseline characteristics using multivariable linear regression. Results In 617 included patients (44% women, median age 62 years), overall QoL improved from 3 to 12 months, with a decrease of the mean PEmb-QoL score from 25.3% to 21.5% (p-value Conclusions In a large cohort of patients with pulmonary embolism, we quantified the improvement of QoL between 3 and 12 months after diagnosis. We identified factors independently associated with lower QoL and slower recovery of QoL that may reflect special patient needs. These estimates may facilitate the planning and interpretation of clinical trials with QoL as a study outcome. Figure 1 Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): University Medical Center of the Johannes Gutenberg University, Mainz, Germany; German Federal Ministry of Education and Research

Background It is unclear to which extent persistence of symptoms and/or residual haemodynamic impairment clinical course of pulmonary embolism are associated with worse quality of life (QoL). Aims To study the correlation between symptoms and haemodynamic impairment with QoL during the first year after acute pulmonary embolism (PE). Methods The Follow-Up after acute pulmonary embolism (FOCUS) study prospectively enrolled and followed consecutive adult patients diagnosed with acute symptomatic objectively diagnosed PE. In the present analysis, we considered patients who completed the Pulmonary Embolism QoL (PEmb-QoL) Questionnaire at predefined visits 3 and 12 months after acute PE. The PEmb-QoL score ranges from 0% (best QoL) to 100% (worst QoL). We evaluated at these two time points the correlation between persisting symptoms (group: symptoms), elevation of natriuretic peptides or residual right ventricular dysfunction (group: RVD), or their combination (group: symptoms + RVD) and QoL. Results A total of 617 patients were included; their median age was 62 years, 44% were women; 8% had active cancer, and 21% previous venous thromboembolism. At 3 months, patients with neither symptoms nor RVD (n=302) had the highest quality of life (median score 18%, 25th–75th percentile: 8%–34%), followed by those without symptoms but with RVD (n=255; median score 19%, 25th–75th percentile: 7%–34%), and by those with symptoms only (n=131; median PEmb-QoL 31%, 25th–75th percentile: 18%–49%). Patients with both symptoms and RVD (n=170) had the worst quality of life (median score 38%, 25th–75th percentile: 19%–53%); Figure 1A. At 12 months, we found an overall improvement of PEmb-QoL score. The degree of this QoL improvement varied across groups, being largest for patients who recovered from having symptoms + RVD at 3 months to normalization of at least one at 12 months. The change in QoL from 3 to 12 months was smaller both in patients who had neither symptoms nor RVD and in patients who had no recovery in either symptoms or RVD; Figure 1B. Conclusions Persistent symptoms after PE, especially in patients with elevated biomarkers or residual echocardiographic dysfunction, were the main drivers of QoL at 3 months as well as of the course of QoL over time. Figure 1 Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): University Medical Center of the Johannes Gutenberg University, Mainz, Germany; German Federal Ministry of Education and Research