重度の遠隔冠動脈疾患によって引き起こされる,排除された冠動脈バイパス手術に関連した高死亡率
Antônio Sérgio Cordeiro da Rocha1, Nella Paula Rodrigues Dassa, Felipe José Monassa Pittella
1Department of Coronary Artery Disease and Cardiac Surgery of Adults, Instituto Nacional de Cardiologia Laranjeiras, Ministério da Saúde, Rio de Janeiro, Brazil. ascrbr@centroin.com.br
Circulation
|September 15, 2005
まとめ
広範囲の遠隔冠動脈疾患 (ENDCAD) のために冠動脈バイパス移植 (CABG) に不適格な患者は,高い死亡率に直面します. 左心室機能不全 (LVD) は,このリスクを大幅に増加させ,代替管理戦略の必要性を強調します.
科学分野:
- 心臓病学 心臓病学
- 血管外科 血管外科
- クリニカル・メディシン 臨床医学
背景:
- 冠動脈疾患 (CAD) の管理には,しばしば冠動脈バイパス移植 (CABG) が含まれており,特に左心室機能不全 (LVD) の患者の予後を改善します.
- CABGの候補ではない遠隔冠動脈の広範囲かつ重度の動脈硬化関与 (ENDCAD) の患者の臨床結果に関するデータは限られている.
- この研究は,ENDCADによりCABGが排除された多血管 (MV) または左主 (LM) CADの患者に焦点を当てています.
研究 の 目的:
- ENDCADのためにCABGを受ける資格のない多血管性または左主CADの患者の臨床経過とアウトカムを評価する.
- この特定の患者コホートにおける死亡率と不良心疾患に関連する危険因子を特定する.
主な方法:
- CABGの臨床的徴候があるが,ENDCADのために不適格であると判断された51人の患者のコホートは,少なくとも12ヶ月または死亡まで追跡されました.
- 収集されたデータには,人口統計,病歴 (急性心筋梗塞,糖尿病,全身性動脈高血圧),LVDの状態,CADの重症度 (3血管CAD,LMCAD) が含まれていました.
- 評価されたアウトカムには,心疾患による死亡,非致死性急性心筋梗塞 (AMI) および結血性心不全が含まれていました.
主要な成果:
- 研究対象集団 (61歳以上/9歳) は,糖尿病 (54.9%),LVD (51%) と3血管CAD (60.8%) の高い罹患率を示した.
- 追跡期間中,39.2%が心臓発作で死亡,37.2%が心筋梗塞,58.8%が心不全を発症した.
- 糖尿病,LVD,3血管CAD,およびLMCADは,死亡リスクの増加と有意に関連していました. 2血管ACDの患者では死亡例はなく,非致死性AMIの発生率は高かった.
結論:
- CABGを排除したENDCADを有する患者は,高い死亡率を示します.
- 左心室機能不全 (LVD) は,この集団における死亡率の増加に関連する重要な要因です.
- 糖尿病 (特にインスリン依存症),左主体CAD,および3血管CADは,リスクの高い独立した予測因子です.
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