The study recruited consecutive outpatients or hospitalized patients diagnosed with pulmonary embolism (PE cohort) and chronic thromboembolic pulmonary hypertension (CTEPH cohort). The follow-up of all patients was performed annually by phone or outpatient visit. The main outcomes were bleeding, recurrent events, and survival. The objective of the study was to explore the pathogenesis, therapy and outcome of PE and CTEPH.
