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Novel and Advanced Techniques for Complex IVC Filter Retrieval.

Dania Daye1, T Gregory Walker2

  • 1Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA.

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PubMed
Summary
This summary is machine-generated.

Retrievable inferior vena cava (IVC) filters are increasingly used for venous thromboembolism (VTE) prophylaxis but often not removed promptly. Advanced retrieval techniques may be necessary for embedded filters, carrying significant risks.

Keywords:
Complex retrievalInferior vena cavaRetrievable filterVenous thromboembolism

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Area of Science:

  • Vascular Surgery
  • Interventional Radiology

Background:

  • Inferior vena cava (IVC) filters are used for venous thromboembolism (VTE) treatment and prophylaxis when anticoagulation fails or is contraindicated.
  • Retrievable IVC filters are increasingly deployed for VTE prophylaxis in high-risk patients.
  • A significant number of retrievable IVC filters are not retrieved within recommended timeframes, leading to potential complications.

Purpose of the Study:

  • To review standard and advanced techniques for inferior vena cava (IVC) filter retrieval.
  • To highlight the risks associated with prolonged IVC filter dwell times and complicated retrievals.
  • To emphasize the importance of careful pre-retrieval assessment and individualized decision-making for embedded filter removal.

Main Methods:

  • Review of standard and advanced IVC filter retrieval techniques, including single-access, dual-access, and dissection methods.
  • Discussion of complications associated with complicated filter retrievals (e.g., fragmentation, embolization, caval wall damage).
  • Emphasis on pre-retrieval assessment using cross-sectional imaging to evaluate filter position, tilting, and caval wall integrity.

Main Results:

  • Prolonged dwell times necessitate advanced retrieval techniques in up to 60% of cases.
  • Complicated retrievals carry risks including filter fragmentation, embolization, pseudoaneurysms, stenoses, and caval wall breach.
  • Careful imaging assessment is crucial for planning complex filter retrievals.

Conclusions:

  • Timely removal of retrievable IVC filters is critical, as emphasized by the FDA.
  • The decision to use advanced techniques for embedded filter removal must be individualized, weighing retrieval risks against the risks of permanent indwelling.
  • Patient age and comorbidities are important factors in the decision-making process for embedded IVC filter removal.