Migration of a thrombus in the pulmonary circulation is the leading cause of pulmonary embolism (PE). It can be prevented mechanically by implanting a vena cava filter (VCF) in the inferior vena cava. The implation of a VCF is indicated for patients with acute PE and a contraindication to anticoagulation, with an acute deep vein thrombosis (DVT) without PE and a contraindication to anticoagulation or with acute venous thromboembolism (less than 3 months) in whom an interventional gesture at hemorrhagic and thromboembolic risk contraindicates anticoagulation.

The purpose of this study is to describe the rates of implantation, removal and complications associated with the use of the optional ALN OATF VCF in current practice.

Inclusion Criteria:

• Patient implanted with an ALN OATF VCF
• Patient informed

Exclusion Criteria:

• Minor patient
• Adult patient under a legal protection measure
• Pregnant, parturient or breastfeeding women
• Patient who refused to participate
• Patient who cannot or does not wish to be followed by the Interventional Radiology Department

Adult patients requiring a vena cave filter

Individual participant data (IPD) that underlie results in publication could be shared. IPD detailed in the protocol of a planned metaanalysis could be shared

Two years after the last publication

Data sharing must be accepted by the sponsor and the PI based on a scientific project and scientific involvement of the PI team. Collaboration will be fostered.

Data sharing must respect the agreements made with funders. Teams wishing obtain IPD must meet the sponsor and IP team to present scientific (and commercial) purpose, IPD needed, format of data transmission, and timeframe. Technical feasibility and financial support will be discussed before mandatory contractual agreement.

Processing of shared data must comply with European General Data Protection Regulation (GDPR).