Temporary Inferior Vena Cava Filters: How Do We Move Forward?

Area of Science:

• Vascular Surgery
• Interventional Radiology
• Medical Device Safety

Background:

• The indications for temporary inferior vena cava (IVC) filters are not well-established, despite their frequent use.
• Long-term risks associated with temporary IVC filters are a growing concern, leading to media attention and legal actions.
• Retrievable IVC filters, designed for easier removal, still present significant complications, often linked to prolonged implantation.

Purpose of the Study:

• To evaluate the safety and effectiveness of temporary and permanent IVC filters for pulmonary embolism prophylaxis.
• To assess the current practices regarding IVC filter implantation and retrieval timelines.
• To investigate the inherent risks and benefits of retrievable IVC filter design features.

Main Methods:

• The PRESERVE Trial (NCT02381509) is a multicenter, non-randomized, open-label study.
• The study examines commercially available IVC filters in patients requiring mechanical prophylaxis against pulmonary embolism.
• Data collection focuses on safety and effectiveness outcomes related to IVC filter use.

Main Results:

• Complications associated with IVC filters are frequently related to the duration of implantation.
• The incidence of filter-related complications appears to correlate with the time filters remain on the market.
• Current evidence supporting routine adherence to FDA guidelines (25-54 days removal) is limited.

Conclusions:

• Temporary IVC filters should be used judiciously, based on the best available evidence.
• Routine removal of temporary IVC filters within the FDA-recommended 25-54 day window is crucial.
• Further research is necessary to determine if retrievable IVC filter designs can provide effective pulmonary embolism prophylaxis with minimal complications.