目标温度控制在36°C提高生存和保护组织通过减轻有害的炎症反应随后的出血性休克改善生存和保护组织
Arom Choi1, Ji Sun Woo1, Yoo Seok Park1
1Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Shock (Augusta, Ga.)
|August 26, 2024
概括
在36°C的有针对性的温度管理 (TTM) 显著改善了出血性休克 (HS) 鼠标模型中的生存率. 这种轻度低温会减少器官损伤和炎症,为HS患者提供了一个有前途的治疗策略.
科学领域:
- 临界护理医学 临界护理医学
- 身体生理学 身体生理学
- 免疫学 免疫学 免疫学
背景情况:
- 出血性休克 (HS) 是一个重大的临床挑战,死亡率高.
- 目前的HS治疗方法在改善患者的治疗结果方面存在局限性.
- 了解新的治疗策略来缓解HS诱导的器官损伤和炎症至关重要.
研究的目的:
- 调查针对性温度管理 (TTM) 的有效性,以改善出血性休克后的结果.
- 在HS的背景下确定TTM的最佳温度.
- 阐明TTM调节炎症并保护HS的器官的潜在机制.
主要方法:
- 建立了大鼠出血性休克 (HS) 的模型.
- 在液体复苏后,在两种不同的温度 (33°C和36°C) 应用了TTM.
- 评估生存率,组织器官损伤,血清乳酸盐,细胞亡,活性氧物种 (ROS),高流动性组盒1蛋白 (HMGB1),细胞因子概况和巨细胞分化.
主要成果:
- 33°C的TTM增加了死亡率,而36°C的TTM显著提高了生存率.
- 在36°C的TTM降低了肺和组织学损伤,降低了血清乳酸,减弱了亡和ROS产生.
- 在36°C的TTM抑制了HMGB1释放,降低了促炎细胞因子,并促进了M2巨分化,抑制了M1表型.
结论:
- 在36°C的有针对性的温度管理表明了在改善出血性休克后的结果方面显著的治疗潜力.
- 在36°C的轻度低温会通过调节关键炎症媒介和免疫细胞反应来缓解HS诱导的器官损伤和全身炎症.
- 在36°C的TTM代表了一个有前途的辅助疗法,用于重症监护管理出血性休克,可能降低死亡率和增强恢复.
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