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Updated: Aug 14, 2026
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Pre-clinical Model of Cardiac Donation after Circulatory Death
Published on: August 2, 2019
热血与冷血心脏对内皮功能,心肌功能和能量学的影响
1Department of Surgery, New York Hospital-Cornell University Medical College, New York 10021.
Circulation
|November 1, 1993
概括
在短时间的大动脉十字时,常温血型心肌没有在心肌的保护方面比冷心肌提供任何优势. 这两种方法均保持了左心室功能和冠状动脉反应能力.
科学领域:
- 心血管外科心血管外科
- 心脏麻醉心脏麻醉
- 肌心保护 肌心保护
背景情况:
- 正常热血性心肌正受到人们的兴趣,因为它在理论上比传统的低温方法更有优势.
- 这项研究比较了热血和冷血心脏,以保护心肌.
研究的目的:
- 为了比较正常热 (温暖) 与低温 (冷) 血型心脏.
- 评估对左心室功能,能量和冠状动脉响应能力的影响.
主要方法:
- 蒙格勒犬经历了温心的正常热心肺绕道 (CPB) 或冷心的低温CPB.
- 大动脉紧持续了30分钟,冠状动脉放松测试使用乙胆和酸甘油.
- 左心室收缩率和心肌能量被分析为反后.
主要成果:
- 在任何一组中都没有观察到内皮依赖或独立冠状动脉放松的恶化.
- 两组患者在60分钟的再输血后,左心室收缩能力完全恢复.
- 心肌动力学分析显示,热心和冷心组之间没有显著差异.
结论:
- 持续的热心肌与单剂量冷心肌相比,对于冠状动脉功能,心肌功能或能量方面没有任何好处.
- 在30分钟的大动脉十字时间内,冷心肌和热心肌一样有效.
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