Efficacy of inferior vena cava filters in anticoagulated patients

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Published on: January 13, 2023

H H Billett1, L G Jacobs, E M Madsen

  • 1Department of Medicine and Epidemiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10467, USA. hbillett@montefiore.org

Journal of Thrombosis and Haemostasis : JTH
|August 29, 2007
PubMed

Insights

Inferior vena cava (IVC) filters offer no significant benefit over anticoagulation alone for preventing pulmonary embolism or deep vein thrombosis. Patients receiving IVC filters had similar outcomes to those on anticoagulation only.

Area of Science:

  • Cardiovascular Medicine
  • Vascular Surgery
  • Thrombosis Research

Background:

  • The efficacy of Inferior Vena Cava (IVC) filters alongside standard anticoagulation for venous thromboembolism (VTE) is not well-established.
  • Current guidelines and clinical practice vary regarding the combined use of IVC filters and anticoagulation therapy.

Purpose of the Study:

  • To evaluate the additional benefit of IVC filters when used concurrently with anticoagulation in patients with VTE.
  • To compare outcomes including new pulmonary embolism (PE), recurrent deep vein thrombosis (DVT), and mortality between patients receiving anticoagulation with an IVC filter versus anticoagulation alone.

Main Methods:

  • Retrospective analysis of patients with VTE, comparing an anticoagulation plus IVC filter group (AC-Filter) with an anticoagulation-only group (AC-Only).
  • Outcome measures assessed at 90 days and 5 years included new PE, recurrent DVT, and mortality.
  • Demographic and clinical data, including age, gender, race, prior VTE history, cancer, and serum albumin, were analyzed. Matched subset analyses were performed.

Main Results:

  • AC-Filter patients (n=251) were older and had lower serum albumin levels than AC-Only patients (n=1377).
  • No significant differences in new PE, recurrent DVT, or mortality were observed between the AC-Filter and AC-Only groups after stratification.
  • A prior history of PE independently increased the risk of a new PE in both groups.

Conclusions:

  • Inferior vena cava (IVC) filters do not appear to provide substantial additional benefit for patients with VTE who are able to tolerate anticoagulant therapy.
  • The findings suggest that anticoagulation alone may be sufficient for many VTE patients, challenging the routine use of IVC filters in conjunction with anticoagulation.
Abstract

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