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冠動脈の妥協のパターンは,急性右心室性性高血症機能不全を引き起こします
Terry R Bowers1, William W O'Neill, Mark Pica
1Division of Cardiology, William Beaumont Hospital, Royal Oak, Mich 48073-6769, USA.
Circulation
|August 28, 2002
まとめ
側近右冠動脈 (RCA) の閉塞は,しばしば右心房梗塞 (RVI) を引き起こします. しかし,保護されたRVを担保や特許分岐を通じて注入することは,重度のRV機能不全を防ぐことができ,冠動脈の流れパターンの重要性を強調します.
科学分野:
- 心臓病学 心臓病学
- 介入性心臓病学 介入性心臓病学
- 心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは心筋梗塞 (Myocardial Infarction) とは
背景:
- 急性右心室梗塞 (RVI) の重症度は,近親右冠動脈 (RCA) 閉塞にもかかわらず異なります.
- 冠動脈損傷パターンを理解することは,RVIの重症性を説明する鍵です.
研究 の 目的:
- RV発血不全の程度を決定する冠動脈の妥協パターンを特定するために.
- 急性心筋梗塞におけるRV壁運動とRV perfusionを相関させるため.
主な方法:
- 緊急血管撮影を受けた急性下心筋梗塞の125人の患者を分析した.
- 評価された罪悪者の病変,RV支流 (TIMI,フレーム数),および計算されたRV浸透指数.
- 超音波を用いたRV壁の動きと相関したRV perfusion indices.
主要な成果:
- RVIは患者の42%で発生し,近隣のRCA閉塞はRVの枝の流れを損なう.
- RVIのない患者は,RVの perfusion (フローインデックス2.7対0.7;P=0.001) を保存していた.
- RVの perfusion と RVの壁の動き (Spearman r=0.79) の間には強い相関が認められた.
結論:
- 近いRCAの閉塞がRVの支部 perfusionを危うくすることが,しばしばRVの機能不全につながる.
- 副産物または自発的な再注入は,近隣のRCA罪悪者であっても,RV機能を保存することができます.
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