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Updated: Feb 9, 2026

Establishment and Validation of a Rat Model of Pulmonary Arterial Hypertension Associated with Pulmonary Fibrosis
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[Migration of an Antheor filter in the pulmonary artery. A case]
1Service de Chirurgie thoracique et cardiovasculaire, Clinique St Martin, Caen.
Abstract:
Migration of an Antheor caval filter into the pulmonary artery was observed in a 66-year old male patient referred for multifocal pulmonary embolism in a context of heparin-induced thrombocytopenia. The inferior vena cava was of small diameter (18 mm). The filter was removed under cardio-pulmonary bypass and total heparinization, despite the proven thrombocytopenia. The postoperative period was marked by tamponade which had to be drained. The long-term results were satisfactory. This seems to be the first documented case of Antheor caval filter migration into the cardiac cavities.
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