[Home treatment of low-risk pulmonary embolism patients : Efficacy and safety of an outpatient program including the general practitioner].

Outpatient treatment (OT) of patients with low-risk pulmonary embolisms (PE) is recommended. A multidisciplinary OT program including the general practitioner (GP) has been implemented at Versailles hospital in 2019. The objectives of the study were to assess the feasibility, safety and acceptability of the program. The feasibility of, and the inclusion criteria for OT were defined from a retrospective cohort study of PE patients carried out in 2018. In the prospective study, consecutive patients consulting in the emergency department between 2019 and 2021 with confirmed PE were eligible for OT if they had sPESI and HESTIA scores equal to 0, normal troponin and NT-pro-BNP levels, and no right ventricular dilation on imaging. PEs associated with COVID were excluded. The OT program included 4 appointments within 3 months, including 2 with the GP. Events (death, recurrence of PE or venous thromboembolism, bleeding, rehospitalisation) were collected at 3-month follow-up. In the retrospective study, 19% of the 138 PE patients seen in the emergency department were eligible for OT. No complication occurred at Day 90. In the prospective study, 313 consecutive patients with confirmed PE in the emergency department were included, 66 (21%) were eligible for OT. Overall, 43 patients (14%) received OT (39 eligible) and 27 patients eligible for OT were hospitalised (92% because of pulmonary infarction). At 3-month follow-up, there were no death, no recurrence of thromboembolism, and one patient has been early hospitalised for COVID; 3 female patients treated with rivaroxaban had minor bleeding (heavy menstrual bleeding). The satisfaction rate of general practitioner was 95%. This study confirms the feasibility and safety of our OT program for low-risk EP patients, centered on the general practitioner. It reduces the time spent in the emergency department, reduces hospitalisations and strengthens the city-hospital link for care.

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