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大人の先天性心疾患における運動不耐性:重度の比較,相関関係,および予後的な影響
Gerhard-Paul Diller1, Konstantinos Dimopoulos, Darlington Okonko
1Adult Congenital Heart Program, Department of Cardiology, Royal Brompton Hospital, London, UK.
Circulation
|August 3, 2005
まとめ
成人の先天性心疾患 (ACHD) 患者では,症状のない患者でも,運動能力が著しく低下しています. ピーク酸素消費量 (ピークVO2) で測定されるこの運動能力の低下は,ACHD患者の入院または死亡のリスクの重要な指標です.
科学分野:
- 心臓病学 心臓病学
- 運動生理学 運動生理学
- 大人の先天性心疾患 (ACHD)
背景:
- 大人の先天性心疾患 (ACHD) の患者は,運動制限を経験することがあります.
- 仮説: 抑うつ状態の運動能力は,ACHDで一般的であり,リスクを予測することができます.
研究 の 目的:
- ACHD患者の運動能力を評価するために.
- 運動能力がACHDで悪影響を予測するかどうかを判断する.
主な方法:
- 335人のACHD患者,40人の心不全患者,23人の健康な対照群における心肺運動検査 (CPET)
- ピーク酸素消費量 (ピークVO2) とその相関値の分析.
- 多変量コックス分析で,入院または死亡の予測を評価する.
主要な成果:
- ACHD患者は,健康な対照群と比較して,ピークVO2を著しく低下させた.
- ACHD患者におけるピークVO2は,心不全患者と同等であった.
- ピークVO2の低下はピーク心拍数,肺高血圧,肺機能障害と相関する.
- ピークVO2は入院または死亡を予測した (HR 0.937,P=0.01).
結論:
- ACHD患者の運動能力は慢性心不全と同様に低下しています.
- 心拍数応答,肺高血圧,肺機能などの要因は,運動能力に影響します.
- 運動能力の低下は,有害事象のリスクが高いACHD患者を特定します.
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