ミクソマトス弁疾患におけるミトラル環状動態:リアルタイム3次元エコーカルディオグラフィーの新しい洞察
Jasmine Grewal1, Rakesh Suri, Sunil Mankad
1Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minn 55905, USA.
Circulation
|March 17, 2010
まとめ
リアルタイムの3D食道横断エコーカルディオグラフィは,初期シストリック収縮とサドル形の深化によって特徴づけられる正常なミトラアヌルスの機能を明らかにします. ミクソマトス弁疾患 (MVD) はこれを変化させ,収縮の喪失と潜在的心房-門分離を示します.
科学分野:
- 心血管画像検査についてです.
- エコーカルディオグラフィー エコーカルディオグラフィー
- 心臓のメカニズムのメカニズム
背景:
- mitra annulusの生理学は複雑で,完全に理解されていません.
- リアルタイム 3D トランスエゾファゲアルエコーカルディオグラフィー (TEE) は,ミトラアヌルスのサイズと運動の包括的なイメージングと定量化を可能にします.
研究 の 目的:
- 正常な被験者,ミクソマトス弁疾患 (MVD) の患者,および不全性ミトラル吐症の患者におけるミトラル動力の調査と定量化.
- リアルタイム3D TEEを使用して,これらのグループにおけるミトラアヌルスの機能と形態を比較する.
主な方法:
- リアルタイム3DTEEは,MVD患者32人,対照患者15人,および10人の不全性ミトラル吐患者で実施されました.
- 専門のソフトウェアを使用して,心循環を通してミトラの環状の寸法とサドル形の深さを測定しました.
- 測定は,直接的な外科測定と比較して検証されました.
主要な成果:
- MVDアヌリは,対照群と比較して,ダイアストールで大きかった. 正常なアヌリは,早期シストリック収縮とサドル状の深化を示した.
- MVDアヌリは早期シストリック膨張を示し,領域収縮が欠如し,有意なサドル形の深化を示さなかった.
- MVDアヌーリは過剰に拡大した後期シストールで,より狭い,アダイナミックな不血症MRアヌーリと対照的です. 修理後のMVDアヌリは,形が強調されずに動的であり続けました.
結論:
- リアルタイムの3D TEEは,ミトラアニルスの正常な機能を明らかにし,ミトラアニルスの能力に不可欠です.
- MVDは正常な環状の動態を妨害し,心房-環状の分離と潜在的ミトラ不完全性につながる.
- この技術は,真髄管の病理生理学的理解を洗練し,改善された外科的修復戦略を開発するのに役立ちます.
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