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右室肥大：病態生理、マルチモーダルイメージング、および臨床的意義

Gizem Demir1, Özge Özden Kayhan2, Rengin Çetin Güvenç3

  • 1From the Department of Cardiology, Medical Park Hospitals Group, Medical Park Göztepe Hospital, Istanbul, Turkey.

Cardiology in review
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まとめ

右室（RV）肥大は、後負荷の増加に対する主要な応答です。イメージングは、適応性RV肥大と不適応性RV肥大を区別するのに役立ち、肺高血圧症の評価と治療の指針にとって重要です。

キーワード:
心エコー検査肥大磁気共鳴画像法肺高血圧症右心室

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背景:

  • 右室（RV）肥大は、後負荷の増加に対する主要な適応です。
  • この応答は、RV機能を維持する適応性である場合もあれば、RV不全につながる不適応性である場合もあります。
  • 心筋の損傷と虚血は、しばしば不適応性RV肥大を促進します。

研究 の 目的:

  • RV肥大の病態生理をレビューすること。
  • RV肥大評価における心血管イメージングの役割を議論すること。
  • RV肥大評価の臨床的有用性を強調すること。

主な方法:

  • 既存の文献のナラティブレビュー。
  • マルチモーダル心血管イメージング、特に心臓磁気共鳴画像法（CMR）に焦点を当てます。
  • イメージングモダリティを用いたRV質量、容積、および機能の特性評価。

主要な成果:

  • マルチモーダルイメージングは、適応性RV肥大と不適応性RV肥大を区別します。
  • CMRは、基準標準の定量化と組織特性評価を提供します。
  • RV肥大評価は、肺高血圧症のスクリーニングとリスク層別化に役立ちます。

結論:

  • RV肥大の評価は、臨床管理にとって重要です。
  • イメージングは、RVの適応状態を区別する上で重要な役割を果たします。
  • RV肥大評価は、治療戦略とリスク層別化を導くことができます。