Pathological Analysis and Clinical Evolution After Radiological Removal of Retrievable Vena Cava Filters

Author:

Annweiler Thierry1,Bertoletti Laurent234,Grange Sylvain1ORCID,Peoc’h Michel5,Mismetti Patrick234,Barral Fabrice-Guy1

Affiliation:

1. Service de Radiologie, Centre Hospitalier Universitaire de St-Etienne, Saint-Etienne, France

2. Service de Médecine Vasculaire et Thérapeutique, Centre Hospitalier Universitaire de St-Etienne, Saint-Etienne, France

3. INSERM, UMR1059, Equipe Dysfonction Vasculaire et Hémostase, Université Jean-Monnet, Saint-Etienne, France

4. INSERM, CIC-1408, CHU Saint-Etienne, Saint-Etienne, France

5. Department of Pathology, CHU de St-Etienne, Saint-Etienne, France

Abstract

Objective Retrievable inferior vena cava filters (IVCF) have been developed because permanent filters have been associated with an increased risk of recurrent deep venous thrombosis. There is no data on the interactions of IVCF with the inferior vena cava (intrafilter thrombi, insertion through the venous wall) even though this may alter the course after retrieval of the IVCF. Methods A review of 85 consecutive patients undergoing retrieval of IVCF placed at a single center was performed from January 1, 2010 and December 31, 2014. Inferior vena cava filter were examined for presence of intrafilter thrombus at time of retrieval. Filter position and presence of intraluminal thrombus were examined. Patient outcomes, including recurrence of deep vein thrombosis (DVT) and death, were captured at 3 month followup. Results Eighty five patients were identified, with intrafilter thrombi found in 69 (81%) patients and venous wall fragments found in 75 (88%) patients. However, their presence was not associated with an increased risk of recurrent venous thromboembolism (VTE) or death during follow up. Conclusions Intrafilter thrombi and venous wall fragments are frequently found in removed IVCF but are not associated with a worse prognosis. They may not modify the therapeutic management of patients.

Publisher

SAGE Publications

Subject

Cardiology and Cardiovascular Medicine,General Medicine,Surgery

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