イディオパシー性膨張性閉塞性心筋症における心筋縮:臨床病理学的研究
Circulation
|September 1, 1981
まとめ
イディオパシー拡張性心筋病症と左心房 (LV) 大幅縮症の患者は,より高い生存率を示した. 心臓の重量とLV壁の厚さの形態学的差異は,長期的な生存者と短期間の生存者を区別し,高縮症を示す.
科学分野:
- 心血管病理学 心血管病理学
- 心臓の形質について
- 心臓病に関する研究
背景:
- 臨床研究では,左心室 (LV) ハイパルトロフィーは,イディオパシー拡張心筋病の生存率を改善することが示唆されています.
- 心臓の解剖学に基づく好ましいまたは不利な予後グループを支持する形態学的証拠は限られている.
- 心臓の構造と予後との関係を理解することは,患者の管理に極めて重要です.
研究 の 目的:
- イディオパシー拡張性心筋病変症の患者の死体解剖した心臓の形態学的差異を調査する.
- 拡張性心筋病変における生存期間と心臓の構造的発見を相関させるため.
- 拡張性心筋病における高縮/膨張指数と正常な心臓と体積過負荷状態を比較する.
主な方法:
- 拡張性心筋症の検死された30人の患者を研究し,短期 (1年以内に死亡) と長期 (1~14年後に死亡) の生存者に分けました.
- 測定された心臓の重量,LV壁の厚さ,およびLV腔の直径 (死後の血管図を通して).
- LV高縮/膨張指数 (壁の厚さ/直径) を計算し,正常な心臓と体積過負荷患者を含むグループを比較した.
主要な成果:
- 長期生存者は,短期生存者 (p <0.001) と比較して,平均心臓の重量 (759g vs. 540g) とLV壁の厚さ (1.3cm vs. 1.0cm) が著しく高かった.
- LV腔の膨張は,短期的および長期的生存者の間で有意に異なるものではありませんでした.
- 拡張性心筋病の短期生存者 (0.17) と長期生存者 (0.21) では,体積過負荷患者 (0.38) と正常な被験者 (0.48) と比較して,LV高縮/膨張指数が低かった.
結論:
- Idiopathic dilated cardiomyopathyでは,LVの拡張は,特に短期生存者において,高縮と不釣り合いである.
- 壁の厚さが比率を正常化する体積過負荷高縮症とは異なり,拡張性心筋病は適応障害を示します.
- 心臓の構造の形態学的差異,特にLV増幅と壁の厚さは,拡張性心筋病の生存結果と関連しています.
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