カボトリクスピッド・イストムスのマッピングは,一般的な心房の周波数アブレーション中に双方向的なブロックを評価するために行われます
J Chen1, C de Chillou, T Basiouny
1Service de Cardiologie, Hôpital Central, Nancy, France.
Circulation
|December 22, 1999
まとめ
この研究は,心房フラッター切除の際の洞盤筋 (CTI) 阻害の確認のための新しい方法を検証しています. 心房脱極化の逆転は,成功した切除の重要な指標です.
科学分野:
- 電気生理学 電気生理学
- 心臓発作に関する研究
背景:
- アトリヤ・フラッター・アブレーションは,洞房椎間板結節 (CTI) ブロックの確認を必要とする.
- CTIブロックを評価するための既存の方法には限界があります.
研究 の 目的:
- 公開された方法をCTIブロックの判定のための代替アプローチと比較する.
- 心房フラッター切除の際にCTIブロックが成功する確固たる基準を確立する.
主な方法:
- 24極マッピングカテーテルを使用して,心房フラッター切除を受けた39人の患者のCTIブロックを評価しました.
- CTIブロックの3つの基準を定義しました:心房の逆去極化,ペースサイトからの微分伝導の遅延.
- 側部 (A,B) と隔膜部 (C,D) からブロックライン (LOB) までのペースです.
主要な成果:
- 全39人の患者でCTIブロックが成功しました.
- CTIブロックの3つの定義基準は,一貫して一緒に存在するか欠落していた.
- 進行性CTI伝導遅延は,ブロックの確認前に患者の28.2%で観察されました.
結論:
- 心房脱極化シーケンスからLOBへの逆転は,心房フラッター除去の成功の決定的な基準です.
- 提案された方法は,CTIブロックの信頼性の高い確認を提供します.
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