Retrievable vena cava filters: a clinical review

Area of Science:

• Vascular Surgery
• Interventional Radiology
• Cardiology

Background:

• Vena cava filters (VCFs) were developed to prevent pulmonary embolism (PE) in patients with venous thromboembolism (VTE) who cannot tolerate anticoagulation.
• Long-term complications of permanent VCFs, like caval thrombosis, limit their utility, especially for temporary anticoagulation contraindications.
• Retrievable VCFs offer short-term PE protection while minimizing long-term risks.

Purpose of the Study:

• To review the types, indications, and complications of retrievable vena cava filters.
• To evaluate the use of retrievable filters for prophylaxis in surgical patients.
• To clarify the current evidence supporting retrievable filter use in acute VTE and surgical prophylaxis.

Main Methods:

• Literature review of retrievable vena cava filters.
• Discussion of filter types, placement indications, and associated complications.
• Analysis of current evidence regarding prophylactic use in surgical settings.

Main Results:

• Retrievable filters are used for PE prevention in patients with VTE and bleeding risks.
• Their application has expanded to high-risk patients without VTE.
• Evidence for prophylactic use in surgical patients is still limited.

Conclusions:

• Retrievable filters are clearly indicated for patients with acute VTE at risk of recurrent thromboembolism and transient bleeding risks.
• Further research is necessary to establish the prophylactic efficacy of retrievable filters in surgical patients.
• Current recommendations advise using retrievable filters primarily in patients with acute VTE and transient bleeding risks.