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Technical video
Applications of the Columbus steerable guidewire
  1. Alexander von Hessling,
  2. Tomás Reyes del Castillo,
  3. Lutz Lehmann,
  4. Justus Erasmus Roos,
  5. Grzegorz Karwacki
  1. Radiology and Nuclear Medicine, Luzerner Kantonsspital Zentrumsspital, Luzern, Switzerland
  1. Correspondence to Dr Tomás Reyes del Castillo, Radiology and Nuclear Medicine, Luzerner Kantonsspital Zentrumsspital, Luzern 6000, Switzerland; tomas.reyesdelcastillo{at}luks.ch

Abstract

The Columbus steerable guidewire (Rapid Medical, Israel) is a 0.014 inch guidewire with a remotely controlled deflectable tip intended for neuronavigational purposes. 1 The tip can be shaped by pulling or pushing the handle. Pulling the handle decreases the radius (from 4 mm to 2 mm) and curves the tip, while pushing the handle increases the curvature radius and straightens the tip until it bends in the opposite direction. The amount of deflection is at the discretion of the operator. Video 1 The response of the Columbus guidewire to rotational movements is inferior to that of standard wires, and the tip is very soft and malleable but brings great support when bent. We present two cases where the Columbus guidewire was used. In the first case, the Columbus enabled us to probe a posterior cerebral artery arising from a giant basilar tip aneurysm without wall contact. In the second case, the Columbus was used as a secondary wire to help cannulate the pericallosal artery in a patient with a recurrent anterior complex aneurysm; this subsequently permitted successful stent-assisted coiling of the aneurysm.

Video 1 ­
  • aneurysm
  • guidewire
  • navigation
  • thrombectomy
http://creativecommons.org/licenses/by-nc/4.0/

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

https://doi.org/10.1136/neurintsurg-2021-018120

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    Footnotes

    • Twitter @tomrdc

    • Contributors AvH was the main author of the manuscript. TRdC was a major contributor in filming the video and writing the manuscript. LL contributed with the animation and edition of the video. JER and GK provided administrative support and a critical review of the intellectual content of the video. All authors read and approved the final manuscript.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.