Pulmonary vascular disease & thromboembolism

Association Between Anticoagulant Therapy and Survival in Pulmonary Arterial Hypertension: A Registry Report and Updated Meta-Analysis

J Am Coll CardiolPublished Registry-based cohort study with updated meta-analysis

Authors' conclusion

Anticoagulant use in PAH was not associated with overall survival in the nationwide registry. These results were supported by an updated meta-analysis.

Study context

Population
Patients diagnosed with pulmonary arterial hypertension (PAH), national French Pulmonary Hypertension Registry, 2009–2020
Participants
1,597 patients
Comparison
Anticoagulants vs no anticoagulants
  • Anticoagulantsn = 380
Outcome
Survival
Methodological detailspropensity score-based analysis, nationwide registry
  • Propensity score-based analysis
  • Nationwide registry

Pooled result

Survival (registry)

Hazard ratio

0.997

95% CI 0.84–1.18

P = 0.97

By group

Anticoagulants vs No anticoagulants
HR 0.997 (95% CI 0.84–1.18); P = 0.97

As reported in the abstract

Further pooled results

OutcomeHR (95% CI)
Survival, updated meta-analysis of nationwide data sets — Anticoagulants vs No anticoagulants · overall PAH population0.98 (0.78–1.23)
Survival, updated meta-analysis of nationwide data sets — Anticoagulants vs No anticoagulants · idiopathic/heritable PAH or PAH associated with anorexigens0.99 (0.79–1.25)
Survival, updated meta-analysis of nationwide data sets — Anticoagulants vs No anticoagulants · PAH associated with connective tissue disease0.86 (0.52–1.42)
  • Survival, updated meta-analysis of nationwide data sets: 2 predefined subgroups

Survival, PAH subgroups within the registry

Findings consistent across all PAH subgroups

Original publication

Association Between Anticoagulant Therapy and Survival in Pulmonary Arterial Hypertension: A Registry Report and Updated Meta-Analysis. J Am Coll Cardiol. Published 30 September 2025. doi:10.1016/j.jacc.2025.07.026

Summarised from the published abstract; every number is checked against it

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