Removal method of a Supera interwoven stent invaginated during its implantation in endovascular procedure: a case report

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2024年4月11日

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Tasuku Kozasa,
Masahiko Fujihara,
Tomofumi Tsukizawa,
Yuko Yazu,
Naoko Abe,
Ryoki Doami,
Yoshiaki Yokoi

摘要

Background

Supera interwoven stents (IWS) have a unique interwoven structure; thus, precise stent placement can be challenging as they are prone to elongation, shortening, and invagination. Particularly, invagination limits long-term patency. This proposed method aims to remove invaginated IWS.

Case presentation

A 70-year-old man presented with intermittent claudication in his left lower limb. Endovascular therapy was conventionally performed, and a 5.5 × 40 mm IWS was placed after balloon dilatation; however, invagination occurred. The invaginated IWS was successfully removed by a threading 0.014" wire through the outside of the stent strut, and a snare catheter was used to hold it in place from the inside. Then, while still in place, the 0.014" wire and snare catheter were driven into the guiding sheath.

Conclusions

This practical and easy approach to remove invaginated IWS from the body relies on the particular structural characteristics.