冠動脈血管撮影を推奨される患者とのセカンドオピニオン試験の結果
T B Graboys1, B Biegelsen, S Lampert
1Lown Cardiovascular Center, Brookline, Mass.
JAMA
|November 11, 1992
まとめ
冠動脈疾患の医学的安定した患者の場合,冠動脈血管撮影はしばしば安全に延期することができます. この研究は,このような処置のほぼ50%が不必要であり,心臓のケアに関する意思決定に影響を及ぼす可能性があることを示唆しています.
科学分野:
- 心臓病学 心臓病学
- 臨床試験のデザイン
背景:
- 冠動脈血管図は,冠動脈疾患の診断のための一般的な手順です.
- 延期血管撮影の必要性と長期的な結果を評価することは,患者のケアとリソースの割り当てにとって極めて重要です.
研究 の 目的:
- 冠動脈血管撮影を推奨される患者に対するセカンド・オピニオン試験の可行性を評価する.
- 手術を延期した患者の長期的な結果を判断する.
- 冠動脈血管撮影に関する情報に基づいた意思決定のための基準を確立する.
主な方法:
- 症例シリーズの設計が採用され,冠動脈血管図に関する第2の意見を求めるために紹介された患者をフォローしました.
- フォローアップには,アンケート,電話,診療所訪問が含まれていました.
- 心臓イベント,介入,生活の質,症状に関するデータを収集します.
主要な成果:
- 168人の患者のうち,134人 (80%) は血管検査を勧められず,28人 (16%) は推薦を延期した.
- 平均46.5ヶ月の追跡期間中,年率の心臓死亡率は1.1%,新発心筋梗塞は2.7%,不安定な胸痛は4.3%でした.
- 患者の15.4%が最終的に冠動脈バイパスまたは血管新生手術を受けた.
結論:
- 冠動脈動脈造影は,医学的に安定した冠動脈疾患の患者の有意な部分で安全に延期することができます.
- この結果は,米国における冠動脈血管図の約50%が不必要または延期される可能性があることを示唆しています.
- 慎重に患者の選択とセカンド・オピニオンを行うことで,侵襲的な心臓の手術の使用を最適化することができます.
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