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[The Bird's Nest vena cava filter: preliminary experiences]
M Y Mantoni1, S R Just, J K Christoffersen
1Amtssygehuset i Gentofte, Røntgen-/ultralydafdelingen og karkirurgisk afdeling.
Ugeskrift for Laeger
|February 20, 1999
Summary
This study evaluated the Bird's Nest inferior vena cava (IVC) filter in six patients. The filter showed successful placement and good short-term outcomes in the few patients who received it.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Medical Devices
Background:
- Inferior vena cava (IVC) filters are used to prevent pulmonary embolism.
- Anticoagulation therapy is the primary treatment for venous thromboembolism.
- Some patients have contraindications or insufficient response to anticoagulation.
Purpose of the Study:
- To report the preliminary experience with the Bird's Nest IVC filter.
- To assess the feasibility and safety of Bird's Nest filter placement.
- To evaluate early outcomes in patients receiving the Bird's Nest filter.
Main Methods:
- A retrospective review of six patients considered for Bird's Nest filter placement over 28 months.
- Filter placement via percutaneous femoral vein access.
- Ultrasound examinations to assess filter patency and complications.
Main Results:
- Three of six patients underwent successful filter placement without immediate complications.
- Two filters were placed via the right common femoral vein, one via the left.
- Two patients had normal ultrasound findings at 90 and 350 days post-placement.
Conclusions:
- The Bird's Nest filter can be successfully placed by interventional radiologists.
- Further studies are needed to confirm long-term efficacy and safety.
- IVC filter insertion is uncommon in Denmark and should be performed by specialists.