Chronic thromboembolic pulmonary hypertension and impairment after pulmonary embolism: the FOCUS study

AIMS: To systematically assess late outcomes of acute pulmonary embolism (PE) and to investigate the clinical implications of post-PE impairment (PPEI) fulfilling prospectively defined criteria. METHODS AND RESULTS: A prospective multicentre observational cohort study was conducted in 17 large-volume centres across Germany. Adult consecutive patients with confirmed acute symptomatic PE were followed with a standardized assessment plan and pre-defined visits at 3, 12, and 24 months. The co-primary outcomes were (i) diagnosis of chronic thromboembolic pulmonary hypertension (CTEPH), and (ii) PPEI, a combination of persistent or worsening clinical, functional, biochemical, and imaging parameters during follow-up. A total of 1017 patients (45% women, median age 64 years) were included in the primary analysis. They were followed for a median duration of 732 days after PE diagnosis. The CTEPH was diagnosed in 16 (1.6%) patients, after a median of 129 days; the estimated 2-year cumulative incidence was 2.3% (1.2-4.4%). Overall, 880 patients were evaluable for PPEI; the 2-year cumulative incidence was 16.0% (95% confidence interval 12.8-20.8%). The PPEI helped to identify 15 of the 16 patients diagnosed with CTEPH during follow-up (hazard ratio for CTEPH vs. no CTEPH 393; 95% confidence interval 73-2119). Patients with PPEI had a higher risk of re-hospitalization and death as well as worse quality of life compared with those without PPEI. CONCLUSION: In this prospective study, the cumulative 2-year incidence of CTEPH was 2.3%, but PPEI diagnosed by standardized criteria was frequent. Our findings support systematic follow-up of patients after acute PE and may help to optimize guideline recommendations and algorithms for post-PE care.

  • Valerio, L.
  • Mavromanoli, A. C.
  • Barco, S.
  • Abele, C.
  • Becker, D.
  • Bruch, L.
  • Ewert, R.
  • Faehling, M.
  • Fistera, D.
  • Gerhardt, F.
  • Ghofrani, H. A.
  • Grgic, A.
  • Grünig, E.
  • Halank, M.
  • Held, M.
  • Hobohm, L.
  • Hoeper, M. M.
  • Klok, F. A.
  • Lankeit, M.
  • Leuchte, H. H.
  • Martin, N.
  • Mayer, E.
  • Meyer, F. J.
  • Neurohr, C.
  • Opitz, C.
  • Schmidt, K. H.
  • Seyfarth, H. J.
  • Wachter, R.
  • Wilkens, H.
  • Wild, P. S.
  • Konstantinides, S. V.
  • Rosenkranz, S.

Keywords

  • Chronic thromboembolic pulmonary hypertension
  • Follow-up
  • Functional impairment
  • Pulmonary embolism
Publication details
DOI: 10.1093/eurheartj/ehac206
Journal: Eur Heart J
Work Type: Original
Access number: 35484821
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