Left femoral vein approach for the percutaneous placement of the Bird's Nest Filter

Area of Science:

• Vascular surgery
• Medical device engineering
• Interventional radiology

Background:

• The Bird's Nest Filter is a vena cava filter used to prevent pulmonary embolism.
• Placement via the left femoral vein is a common approach for accessing renal veins.
• Catheter length can be a limiting factor for optimal filter placement in certain anatomies.

Purpose of the Study:

• To address the issue of inadequate catheter length with the standard Bird's Nest Filter femoral set.
• To evaluate the efficacy of using the Bird's Nest Filter jugular catheter set via the left femoral vein approach.
• To ensure optimal placement of the filter in proximity to the renal veins.

Main Methods:

• Comparison of the standard Bird's Nest Filter femoral catheter set with the longer Bird's Nest Filter jugular catheter set.
• Utilizing the left femoral vein approach for filter placement.
• Assessment of catheter length and proximity to renal veins.

Main Results:

• The standard Bird's Nest Filter femoral catheter set was found to be too short in some patients.
• The longer Bird's Nest Filter jugular catheter set, when used via the left femoral vein, successfully eliminated the length limitation.
• This modification allowed for placement closer to the renal veins.

Conclusions:

• The Bird's Nest Filter jugular catheter set is a viable alternative when the standard femoral set is inadequate.
• Using the longer jugular set via the left femoral vein overcomes anatomical challenges for optimal filter positioning.
• This adjustment improves the safety and efficacy of vena cava filter placement.