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慢性冠動脈性心疾患の患者における突然の心臓死
1Clinical Electrophysiology Laboratory, Hospital of the University of Pennsylvania, Philadelphia 19104.
Circulation
|January 1, 1992
まとめ
心臓発作による突然死 (SCD) は,年間30万から40万人に及ぶ. SCD再発リスクを管理するために,電気生理学的研究を通じて誘導性心室性タヒカルディアを特定することは鍵です.
科学分野:
- 心臓病学 心臓病学
- 電気生理学 電気生理学
- 心臓発作による突然死に関する研究
背景:
- 心臓発作による突然死 (SCD) は,毎年30万から40万人の死亡を引き起こし,2年以内に生存者の再発率は40%である.
- 冠動脈疾患,特に左心室機能不全は,主要なリスク因子ですが,SCDは最初のプレゼンテーションかもしれません.
- 静脈性心不全症の最も一般的な不律性原因は静脈性心不全症であり,しばしば損傷した心室の伝導が遅くなったことと関連しています.
研究 の 目的:
- 急性心臓死 (SCD) とその再発の予測要因と管理戦略を調査する.
- SCDのリスクのある患者を特定するための電気生理学的研究の役割を評価する.
- SCDの再発を防ぐための薬理学的および外科的介入の有効性を評価する.
主な方法:
- SCD患者における電気生理学的研究中の内臓マッピングの分析.
- 左心室機能の評価と信号平均の心電図を予測指標として用いる.
- 誘導性静脈動脈短拍の評価と,抗不律薬または介入に対する患者の応答.
主要な成果:
- 左心室の機能不良は,複雑な心室内外皮症よりも,SCDの再発のより良い予測因子です.
- 電気生理学的研究は,心室損傷を有するSCD患者の伝導が遅れていることを明らかにします.
- 非誘導性心室性タヒカルディアの薬理学的な表現は,予後を改善する;持続的な誘導性または非誘導性は,再発のリスクが高いことを示します.
結論:
- 電気生理学的研究は,突然の心臓死 (SCD) のリスクの階層化に不可欠です.
- 薬剤による非誘導性になる誘導性心室性低心筋症の患者は,予後が良好である.
- 高リスクの患者は,SCDの再発を防ぐために,下腸内膜切除または埋め込み式除細動器から利益を得ることができます.
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