Sequential changes of Wallstent shape without post-stenting angioplasty

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  • MIKI Shunichiro
    Department of Neurosurgery, National Hospital Organization, Mito Medical Center
  • KATO Noriyuki
    Department of Neurosurgery, National Hospital Organization, Mito Medical Center
  • YAMAZAKI Tomosato
    Department of Neurosurgery, National Hospital Organization, Mito Medical Center
  • IKEDA Go
    Department of Neurosurgery, National Hospital Organization, Mito Medical Center
  • KASUYA Hiromichi
    Department of Neurosurgery, National Hospital Organization, Mito Medical Center
  • SONOBE Makoto
    Department of Neurosurgery, National Hospital Organization, Mito Medical Center
  • NAKAI Yasunobu
    Department of Neurosurgery, Faculty of Medicine, University of Tsukuba
  • MATSUMURA Akira
    Department of Neurosurgery, Faculty of Medicine, University of Tsukuba

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Other Title
  • 後拡張を省略し留置されたCarotid Wallstentの経時的形状変化
  • アト カクチョウ オ ショウリャク シ リュウチ サレタ Carotid Wallstent ノ ケイジテキ ケイジョウ ヘンカ

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Abstract

Objective: We prospectively followed the sequential changes in Carotid Wallstent (Wallstent) shape after carotid artery stenting (CAS) without post-stenting angioplasty.<br>Methods: The case series was composed of 10 out of 11 consecutive patients who received CAS at our institution during a 9-month period. In all cases, we used distal protection throughout the procedure. Wallstents were deployed in all cases after predilatation. None of the cases received post-dilatation. The ratio of the stent diameter in the stenotic part (SW) to that in the proximal end (PE) estimated from the neck radiograph (SW/PE ratio) was calculated in follow up.<br>Results: Gradual self-expansion was confirmed in every case. The SW/PE ratios were increased an average of 44% to 57%.<br>Conclusion: In each case the Wallstent without post-dilatation expanded gradually after deployment and improved apposition of the stent to the vessel wall.

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