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CardioVascular and Interventional Radiology
Published in: CardioVascular and Interventional Radiology 5/2024

Open Access 23-04-2024 | Thrombosis | Short Communication

Five-Year Experience of Interwoven Self-Expanding Stent Implantation in Stenotic Kinking of Below the Knee Prosthetic Bypasses

Authors: Szymon Salamaga, Michał-Goran Stanišić, Hubert Stępak, Maciej Błaszyk, Zbigniew Krasiński

Published in: CardioVascular and Interventional Radiology | Issue 5/2024

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Abstract

Purpose

The purpose of this study was to evaluate the 5-year real-world results of Supera stent implantation in below the knee prosthetic bypasses (BKPBs). All the procedures were performed because of a history of recurrent thrombosis of the graft and significant stenotic kinking of the prosthesis during knee flexion. A Supera stent was implanted to prevent the next potential BKPB thrombosis.

Materials and Methods

Fourteen patients were included in this single-center, retrospective observational cohort study. All patients underwent Supera stent implantation in infrainguinal prosthetic bypass between 2012 and 2017, due to a history of recurrent thrombosis and kinking of the prosthetic bypass.

Results

Prior to Supera stent implantation procedure, all the patients had more than one episode of acute limb ischemia caused by thrombosis of the BKPB. The median number of BKPB thromboses prior to Supera stent implantation was 3 and ranged from 2 to 6. Technical success was achieved in all cases. Primary patency rates at 12, 24, 36 and 60 months were 71.4%, 57.1%, 57.1% and 14.3%, respectively. Secondary patency rates at 12, 24, 36 and 60 months were 78.6%, 64.3%, 64.3% and 35.7%, respectively. One stent fracture was reported during 60-month follow-up. Major amputation was performed in 6 patients in 5-year follow-up.

Conclusion

Supera stent in treatment of recurrent thrombosis of BKBP is a safe procedure with acceptable mid-term results. However, larger and comparable prospective studies are needed for broader analysis of this procedure.

Graphical Abstract

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Metadata
Title
Five-Year Experience of Interwoven Self-Expanding Stent Implantation in Stenotic Kinking of Below the Knee Prosthetic Bypasses
Authors
Szymon Salamaga
Michał-Goran Stanišić
Hubert Stępak
Maciej Błaszyk
Zbigniew Krasiński
Publication date
23-04-2024
Publisher
Springer US
Keyword
Thrombosis
Published in
CardioVascular and Interventional Radiology / Issue 5/2024
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI
https://doi.org/10.1007/s00270-024-03728-7

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