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Removal method of a Supera interwoven stent invaginated during its implantation in endovascular procedure: a case
Tasuku Kozasa1, Masahiko Fujihara2,3, Tomofumi Tsukizawa1
1Department of Cardiology, Kishiwada Tokushukai Hospital, 4-27-1, Kamoricho, Kishiwada-City Osaka, 596-8522, Japan.
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.
