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CC BY-NC-ND 4.0 · Thorac Cardiovasc Surg 2025; 73(01): 066-070
DOI: 10.1055/a-2318-5855
Short Communication

Cool-Shot Technique to Protect Spinal Cord during Thoracoabdominal Aortic Replacement

Taira Yamamoto
1   Department of Cardiovascular Surgery, Juntendo University Nerima Hospital, Nerima-ku, Japan
,
Daisuke Endo
2   Department of Cardiovascular Surgery, Juntendo University, Bunkyo-ku, Tokyo, Japan
,
Yasutaka Yokoyama
2   Department of Cardiovascular Surgery, Juntendo University, Bunkyo-ku, Tokyo, Japan
,
Minoru Tabata
2   Department of Cardiovascular Surgery, Juntendo University, Bunkyo-ku, Tokyo, Japan
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Abstract

Deep hypothermia helps protect the spinal cord, but is invasive. Here, we present a method to avoid reperfusion injury by selectively circulating cold blood under high pressure to the intercostal artery during reperfusion after intercostal artery reconstruction. Of the 23 patients who underwent thoracoabdominal aortic aneurysm open repair, one died. The motor evoked potential disappeared during aortic clamping in nine patients. Six patients recovered completely from aortic clamping release, two showed recovery >50% and one achieved full recovery 3 months later. Permanent motor impairment did not occur. This method could prevent reperfusion injury and paraplegia following thoracoabdominal aortic aneurysm surgery.

Keywords

thoracoabdominal aortic aneurysm - cool-shot technique - spinal cord protection - reperfusion injury

Data Availability Statement

The data associated with this manuscript are not publicly available; however, they can be provided by the corresponding author upon reasonable request.




Publication History

Received: 14 January 2024

Accepted: 22 April 2024

Accepted Manuscript online:
03 May 2024

Article published online:
11 June 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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