表面冷却系统的传热能力用于诱导治疗性低温
Curtis Leclerc1, Morteza Talebian Nia1, Gordon G Giesbrecht1,2
1Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada.
Therapeutic hypothermia and temperature management
|June 5, 2023
概括
治疗性低温 (TH) 系统被用于治疗大脑缺血症. 北极太阳系统显示了更大的核心温度下降,但不粘性毯子更容易使用. 系统的选择取决于临床需要.
科学领域:
- 医疗器械 医疗器械
- 生理学 生理学 生理学
- 关键护理医学 关键护理医学
背景情况:
- 治疗性低温 (TH) 对于管理脑缺血至关重要.
- 身体表面冷却提供了一种非侵入性的方法来诱导TH.
- 评估不同的冷却系统对于优化患者护理至关重要.
研究的目的:
- 为了比较三种身体表面冷却系统的有效性和可用性:北极太阳 (AS),布兰克特罗尔III与Maxi-Therm Lite (BL) 以及布兰克特罗尔III与Kool Kit (KK).
- 评估不同冷却系统的热量损失,温度变化和代谢热量产生.
主要方法:
- 用AS,BL和KK系统冷却了8个受试者,每个受试者都设置在4°C的外流温度下120分钟.
- 测量包括热量损失,皮肤和食道温度以及代谢热量产生.
- 进行了统计分析,以比较系统性能.
主要成果:
- 与使用Maxi-Therm Lite的Blanketrol III相比,北极太阳系统导致了更大的核心温度下降.
- 库尔套件系统显示皮肤温度较高,最初热量损失较低,但随着时间的推移,这种优势逐渐减少.
- 所有系统都增加了类似的代谢热量产生;布兰克特罗尔III的流量更高,表明冷却功率更大.
结论:
- 热传递效率在冷却系统之间有所不同,受单元和盖设计的影响.
- 非粘合盖 (BL,KK) 提供了比粘合 (AS) 更好的可用性.
- 虽然AS显示出初始冷却优势,但在更长的TH协议中,其持续的疗效可能受到限制.
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