Multi loop snare technique for difficult inferior vena cava filter retrievals

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Introduction: Use of optional vena cava filters has steadily increased. In the majority of cases removal is successful using standard techniques. In cases of tilting and migration of the filter however, more advanced techniques are necessary. The “loop-snare” technique has been described for such cases. Difficulties arise when the loop starts to slip around the legs and arms of the filter. New technique: We present an improved loop-snare technique which allows to retrieve IVC filters when the simple loop-snare technique fails. We used additional loops, in one case one additional loop in another case two additional loops around the filter tip which allowed successful retrieval. The additional loops were created with a reversed shaped catheter. All guidewires were then engaged with a snare and pulled into a large sheath. The additional loops stabilize the tip and the filter can be pulled into the sheath. Conclusion: The “multiple-loop-snare” technique is a refinement of the previously described “single loop-snare” technique and can be used when one loop fails.




Najafi, A., Koulia, K., Aubert, P., & Binkert, C. A. (2018). Multi loop snare technique for difficult inferior vena cava filter retrievals. CVIR Endovascular, 1(1).

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