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[Factors Contributing to Inferior Vena Cava Filter Removal Failure using Advanced Techniques: A Single-Center Study]
Journal of the Korean Society of Radiology
|February 17, 2025
Summary
Female patients face higher risks of inferior vena cava (IVC) filter removal failure. Hook embedment and endothelialization, not strut penetration, are key factors in failed IVC filter retrieval.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Medical Device Technology
Context:
- Inferior vena cava (IVC) filters are crucial for preventing pulmonary embolism.
- Filter retrieval can be challenging, with a subset of cases failing simple removal techniques.
- Advanced retrieval methods are employed for complex cases, but failure still occurs.
Purpose:
- To identify factors contributing to inferior vena cava (IVC) filter removal failure when using advanced techniques.
- To compare characteristics of successful versus failed IVC filter removals in a cohort undergoing advanced retrieval.
Summary:
- A study analyzed 331 IVC filter removal attempts, focusing on 29 failures with simple techniques. Advanced techniques were used, resulting in 18 successes and 11 failures.
- Key factors analyzed included patient demographics, filter type, indwelling duration, IVC dimensions, and filter-IVC interaction (embedding, endothelialization, penetration).
- Results indicated females had a higher failure rate (p=0.027). Hook embedment (82%) and endothelialization (18%) were prevalent in failure cases, unlike strut penetration.
Impact:
- Identifies female sex as a risk factor for advanced IVC filter removal failure.
- Highlights hook embedment and endothelialization as critical indicators of retrieval difficulty.
- Informs procedural planning and risk assessment for complex IVC filter removals.
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