急性心筋梗塞の再注射療法における心臓発作の大きさの決定因子

T F Christian¹, R S Schwartz, R J Gibbons

¹Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic and Foundation, Rochester, Minn 55905.

Circulation

|July 1, 1992

まとめ

リスクのある心筋,副流,冠動脈閉塞の持続は,急性心筋梗塞の患者の最終的な心臓発作の大きさを有意に予測します. これらの要因は,新しい治療戦略の評価において極めて重要です.

科学分野:

心臓病学心臓病学
核医学は,核医学である.
メディカルイマージング (医学イメージング)

背景:

動物の研究では,心筋筋が危険にさらされていることが示され,副流,閉塞期間が心臓発作の大きさを決定する.
この研究では,ヒトの急性心筋梗塞 (AMI) のこれらの決定因子を調査しています.

研究の目的:

AMI患者における最終的な心臓発作の大きさとの間で,リスクのある心筋,副流,再注血までの時間との関係を評価する.
侵襲的および非侵襲的担保フロー評価の両方の予測価値を評価するために.

主な方法:

89人のAMI患者は99mTcセスタミビ画像検査を受け,再注射前にリスクのある心筋を定量化しました.
副流は侵襲的 (血管図) と非侵襲的 (セスタミビの perfusion curve) で評価された.
最終的な心臓発作の大きさは,退院時の第2回99mTcセスタミビスキャナーで決定した.

主要な成果:

リスクのある心筋筋,血管学的付随グレード,放射性核酸付随フローの推定値は,すべて最終的な心臓発作のサイズと有意に関連していました.
マルチバリエーションモデルでは,心筋筋のリスク,副流,再注血までの時間は,独立して心臓発作の大きさを予測し,最大70%の変動性を説明しました.
非侵襲的担保フロー評価は,侵襲的方法と同様の予測力を示しました.

結論:

リスクのある心筋膜,副流,冠動脈閉塞の持続時間は,AMIにおける最終的な心臓発作の大きさの独立した予測要因です.
これらのパラメータは,急性心筋梗塞に対する新しい治療介入の有効性を評価するために不可欠です.

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