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末梢血栓回収術手技最適化:SVINレジストリ解析

Joseph N Samaha1, Ritesh Bajaj1, Ngoc Mai Le1

  • 1Department of Neurology McGovern Medical School at UTHealth Houston TX.

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まとめ

失敗した第一パス後の末梢血栓回収手技の切り替えは、M1閉塞の再開通率を向上させます。複数回の失敗後、吸引 بواسطةカテーテル(CA)は、ステントリトリーバー(SR)よりも良好な転帰を提供する可能性があります。

キーワード:
急性脳卒中臨床研究手技血栓回収術

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科学分野:

  • 神経学
  • 血管内治療
  • 血管外科学

背景:

  • 優れた再開通(Modified Thrombolysis in Cerebral Infarction 2c/3)をより少ない試行回数で達成することは、臨床転帰を改善します。
  • 以前の研究では、第一パス失敗後に手技を切り替えることが再開通率を高める可能性が示唆されています。
  • 本研究では、大規模な多施設レジストリにおいて、手技切り替えが再開通に与える影響を評価します。

研究 の 目的:

  • 末梢手技の切り替えが後続の再開通率を向上させるかどうかを評価すること。
  • 第二パスでの手技切り替えの有無にかかわらず、TICI 2c/3再開通を達成する可能性を分析すること。
  • 手技と閉塞部位別に、最終的なTICI 2c/3の可能性を層別化すること。

主な方法:

  • 米国12施設(2014年10月~2021年12月)のSociety of Vascular and Interventional Neurology(SVIN)レジストリの遡及的および前向きデータ解析。
  • ステントリトリーバー(SR)、吸引 بواسطةカテーテル(CA)、または複合手技(CT)を用いた再開通試行が少なくとも2回あったM1または内頚動脈終末部(ICA-T)閉塞に対する血管内治療を受けた患者を含める。
  • 主要転帰:第二パスでの手技切り替えの有無にかかわらず、TICI 2c/3再開通を達成する可能性。

主要な成果:

  • 2893件の治療のうち、第一パス後に1089件(37.6%)で再開通が達成されました。
  • M1閉塞では、第一パス失敗後に複合手技(CT)から代替手技に切り替えることで、第二パスでのTICI 2c/3のオッズが有意に増加しました(aOR、2.08)。
  • 2回の吸引 بواسطةカテーテル(CA)パス失敗患者は、2回のステントリトリーバー(SR)パス失敗患者と比較して、最終的なTICI 2c/3のオッズが高くなりました(aOR、1.65)。

結論:

  • M1中大脳動脈閉塞では、CTからSRまたはCAへの切り替えにより、第二パスでのTICI 2c/3率が向上しました。
  • 2回のCAパス失敗後、SRと比較して追加パスを行うことで完全再開通のオッズが増加しました。
  • 手技切り替えは、複雑な脳卒中介入における再開通転帰を改善するための貴重な戦略です。