再発性心室性タヒカルディアおよび左心室性動脈瘤の患者における遅延性脱極化の体表面検出
Circulation
|May 1, 1981
まとめ
ECGの遅延波形 (D波) は,心室動脈不全と左心室動脈瘤の患者で検出されました. この活動は手術によって廃止され,それが示唆された.
科学分野:
- 心臓病学 心臓病学
- 電気生理学 電気生理学
- 医療診断 医療診断
背景:
- 慢性静脈性心拍動症 (VT) は,重大な臨床的課題を提起しています.
- 左心室動脈瘤は,複雑な不律症と関連しています.
- VTの基質を特定することは,効果的な治療に不可欠です.
研究 の 目的:
- VTおよび左心室動脈瘤の患者における遅延EKG波形の存在と特徴を調査する.
- この患者集団におけるこれらの遅延波形の特異性を決定する.
- これらの波形とVT再発に対する外科介入の影響を評価する.
主な方法:
- 信号の平均化による高解像度心電図 (ECG) を利用しました.
- 慢性静脈動脈梗塞と左心室動脈瘤を患った8人の患者の表面EKGを記録した.
- コントロールグループと比較した結果:動脈動脈瘤のないVT,動脈動脈瘤のないVT.
- 遅延波形に対する抗不律剤と動脈筋切除術の効果を評価した.
主要な成果:
- VTおよび左心室動脈瘤の患者でQRS複合体を超えて広がる遅延波形 (D波) が検出されました.
- D波の活動は抗不律薬によって廃止されなかったが,4人の患者で動脈動脈切除によって廃止された.
- D波は対照群に存在せず,左心室動脈瘤のVTの特異性を示した.
- 1年間の追跡期間中に,外科治療を受けた患者でVTは再発しなかった.
結論:
- 表面で検出されるD波は,慢性的な再発性心拍動脈動脈症に関連した左心室動脈瘤の特定のマーカーです.
- アネウリスメクトミーは,D波の活動を効果的に廃止し,静脈動脈症の再発を予防します.
- D波は,心筋膜島における持続的な心脈衝動を表し,静脈動脈伝導に寄与する可能性があります.
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