Interest of the Chair Lift Test in the Prognostic Evaluation of Pulmonary Embolism: a Single-center Open Prospective Study

Inclusion Criteria: * Diagnosis of pulmonary embolism according to clinical algorithm, confirmed by thoracic angioscan or ventilation perfusion (V/P) scan, * Non-serious pulmonary embolism, not requiring intensive care (thrombectomy or fibrinolysis not considered). * sPESI score ≥ 1 \[or = 0 with elevated troponin or presence of markers of VD dysfunction, or = 0 with need for hospitalization due to comorbidities unrelated to PE (social isolation, comprehension disorders, intercurrent infection, chronic renal failure, advanced cancer...) * Patients with no contraindications to chair lift testing (no O2 at the time of testing). * Effective anticoagulation for at least 1 hour. Exclusion Criteria: * sPESI score = 0 with outpatient referral. * Diagnostic confirmation of Pulmonia Embolism by thoracic angioscan or scintigraphy more than 24h after suspicion of diagnosis. * Hospitalization \> 24h after introduction of anticoagulation, with subsequent confirmation by scintigraphy. * Any sign of serious Pulmonia Embolism, requiring hospitalization in an intensive care unit. * Asymptomatic Pulmonia Embolism discovered by chance