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CASE REPORT article

Front. Cardiovasc. Med.
Sec. Cardiovascular Imaging
Volume 11 - 2024 | doi: 10.3389/fcvm.2024.1478430
This article is part of the Research Topic Optimizing Cardiovascular Imaging for Unusual Clinical Scenarios: A Case-Based Approach View all 5 articles

Increase in wall shear stress in a narrowed true lumen after type A aortic dissection repair analyzed by computed fluid dynamics

Provisionally accepted
Yasunori Iida Yasunori Iida 1*Yoichi Marushita Yoichi Marushita 2Yuka Motohashi Yuka Motohashi 3Toshio Sato Toshio Sato 3
  • 1 Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan
  • 2 Gunma Paz University, Takasaki, Gunma, Japan
  • 3 Toin University of Yokohama, Yokohama, Kanagawa, Japan

The final, formatted version of the article will be published soon.

    A 46-year-old man suffered from acute type A aortic dissection (TAAD) and underwent total arch replacement using the frozen elephant trunk (FET) procedure. During follow-up, we noted back pain and found distal stent graft-induced new entry (dSINE) at the FET distal part by computed tomography.We performed additional extended thoracic endovascular aortic repair (TEVAR) for this pathology. The time between TAAD repair and TEVAR was 2 months. We investigated this complication by computational fluid dynamics analysis through pre-and post-dSINE. The results showed increased wall shear stress at the narrowed true lumen (TL) site, not at the FET site, indicating that prestenotic hydrodynamic load may affect dSINE occurrence.

    Keywords: computational fluid dynamics, Distal stent graft-induced new entry, Wall Shear Stress, Frozen elaphant trunk, Aortic remodelling

    Received: 09 Aug 2024; Accepted: 21 Oct 2024.

    Copyright: © 2024 Iida, Marushita, Motohashi and Sato. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Yasunori Iida, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan

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