冷却更安全,更有利吗? 在子身上进行了一项可行性研究
Emrah Şişli1, Fatih Kar2, Kıvanç İnan3
1Section of Paediatric Cardiovascular Surgery, Department of Cardiovascular Surgery, Osmangazi University Faculty of Medicine, Eskişehir, Türkiye.
概括
诱导性低温 (IH) 可以安全地延长大动脉十字 (ACC) 时间,减少代谢负担和末端器官损伤. 这允许更复杂的大动脉门重建,安全边际为30分钟.
科学领域:
- 心血管外科心血管外科
- 实验医学是一种实验医学.
- 手术创新 在外科创新.
背景情况:
- 大动脉门重建需要长时间的大动脉十字 (ACC) 时间,造成代谢负担和末端器官损伤的风险.
- 安全地延长ACC持续时间对于复杂的大动脉手术至关重要.
研究的目的:
- 调查诱导性低温 (IH) 是否可以安全地延长ACC时间.
- 评估IH在大动脉门紧过程中对代谢负担和末端器官损伤的影响.
- 确定IH在促进综合性大动脉重建方面的潜力.
主要方法:
- 62只新西兰白被随机分为正常热量 (39°C) 和轻度低温 (35°C) 组.
- 动物接受了近端大动脉门 (PAA) 紧20分钟,30分钟或40分钟.
- 分析了生物化学,氧化应激生物标志物,血液气体,乳酸盐和组织病理学.
主要成果:
- 常热症导致氧化应激增加,酸性疾病和末端器官损伤随着长时间的紧.
- IH显著减轻了这些不良影响,保持了酸平衡,减少了组织损伤.
- 40分钟的低温缺血症显示出与20分钟的正常热缺血症相比较的损伤.
结论:
- 通过最小化氧化损伤和保持代谢平衡,IH可以防止缺血-再输液损伤.
- IH允许安全地延长ACC时间,安全边缘约为30分钟.
- IH促进了复杂的大动脉重建,并保证了临床试验.
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