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补充阿诺辛的血液心脏减轻严重区域性缺血后的后缺血功能障碍
V H Thourani1, R S Ronson, D G Van Wylen
1Division of Cardiothoracic Surgery, Department of Surgery, Carlyle Fraser Heart Center-Cardiothoracic Research Laboratory, Crawford Long Hospital of Emory University School of Medicine, Atlanta, GA 30365-2225, USA.
Circulation
|November 24, 1999
概括
在再注射期间服用腺素 (ADO) 显著改善了心脏病后功能,并减少了心脏病发作的大小. 在血液心症 (BCP) 中补充ADO也可以减少心脏病发作的大小,但不能像再注射药物一样有效地改善内皮功能.
科学领域:
- 心血管科学 心血管科学
- 心脏外科手术 心脏外科手术
- 药理学 药理学是指药理学的学科.
背景情况:
- 众所周知,在心脏中服用腺素 (ADO) 可以减少心肌缺血性损伤.
- 为减轻心肌再注射损伤而给予ADO的最佳时间仍在调查中.
- 这项研究探讨了ADO补充血液心脏 (BCP) 与再注射期间ADO的疗效.
研究的目的:
- 测试假设ADO补充的BCP或在再注射期间服用ADO会在严重区域性缺血后降低后风险性功能障碍.
- 评估不同ADO施用策略对心肌功能和损伤标志物的影响.
主要方法:
- 通过左前下垂冠状动脉封闭诱导严重区域性心肌缺血的犬类模型.
- 三组接受了不同的治疗:无补充BCP,ADO补充BCP (ADO-CP),或在再注血期间ADO (ADO-R).
- 评估了病后功能,心脏病发作大小,心肌胀和中性粒细胞粘附度.
主要成果:
- 与BCP相比,ADO-R显著改善了继发性区域缩.
- 与BCP相比,ADO-CP和ADO-R都减少了心脏病发作的大小和心肌胀.
- ADO-R减弱了中性粒细胞对内皮的粘附,而ADO-CP没有.
结论:
- 在再注射期间服用ADO优于服用ADO补充的心脏,因为它可以保持后血区域功能并减轻内皮功能障碍.
- 这两种策略都有效地减少了心脏病发作的大小和心肌胀.
- 这些发现突显了ADO管理的关键时机,以最大限度地发挥心脏保护作用.
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