ストレスと突然死. 長いQTシンドロームのケースです
P J Schwartz1, A Zaza, E Locati
1Unità di Studio delle Aritmie, Centro di Fisiologia Clinica e Ipertensione, Milan, Italy.
Circulation
|April 1, 1991
まとめ
イディオパシーロングQTシンドローム (LQTS) は,しばしばストレスによって引き起こされる突然の心臓死を引き起こす. ベータブロッカーは主要な治療法であり,必要に応じて有効な代替手段として左心交感性デナーベーションが用いられます.
科学分野:
- 心臓病学 心臓病学
- 自律神経系の研究
- 遺伝学と分子生物学について
背景:
- Idiopathic Long QT Syndrome (Idiopathic Long QT Syndrome,LQTS) は,ストレスに起因する突然心臓発作による死に関連している状態です.
- LQTSは,心電図のQT間隔が長くなり,生命を脅かす不律が特徴です.
- アリズム障害は,通常,身体的または心理的なストレス中に起こります.
研究 の 目的:
- LQTS不律症におけるアドレネルジックメカニズムの役割を調査する.
- LQTSに対する抗アドレナジック介入の有効性を調査する.
- LQTSの病原遺伝的仮説を理解するために.
主な方法:
- ベータ・アドレネルギー阻害剤を含む既存の治療法のレビュー.
- 左心交感性デナーベーションの有効性の分析.
- 選択的なステラート・ギャングリア・アブレーションによる猫における心律乱の誘導実験.
主要な成果:
- ベータ・アドレナージックブロッカーは,LQTSの第一線治療である.
- ベータブロッカーが効かなくなった場合,左心交感性デナーベーションは有効です.
- 実験データによると,アルファ-アドレナジックメカニズムとLQTS不律症における交感的不均衡の役割があることが示唆されています.
結論:
- アンチアドレナジック介入,特にベータブロッカーは,LQTSに対する効果的な治療法です.
- 左心交感性デナーヴェーションは,耐火性症例の実行可能な代替案を提供します.
- 潜在的にアルファ・アドレナージック経路を含む交感神経系の不均衡は,LQTSの病原性に関与しています.
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