在不同的AED使用者群体中,冲击效率和再振动的变化
Shujie Chen1, Chenguang Liu1, Stacy Gehman1
1Philips, 22100 Bothell Everett Hwy, Bothell, WA 98021, USA.
Resuscitation
|September 25, 2025
概括
使用自动外部除器 (AED) 的未经培训的应急人员在医院外心脏骤停 (OHCA) 中显示出更高的冲击成功率和更低的再振率,而不是受过培训的急救人员和EMS. 这些发现强调了用户体验对AED有效性的影响.
科学领域:
- 心脏病学 心脏病学
- 紧急医疗 紧急医疗
- 生物医学工程 生物医学工程
背景情况:
- 在非医院心脏骤停 (OHCA) 中,自动化外部除器 (AED) 的使用至关重要,结果受到用户类型和冲击时间的影响.
- 了解不同用户群体对AED冲击效率和再振动率的差异对于改善生存率至关重要.
研究的目的:
- 为了比较AED的冲击效率和再振率,使用的应急人员,训练有素的急救人员和急救医疗服务 (EMS).
- 分析影响AED结果的因素,包括振幅光谱面积 (AMSA) 和冲击阻抗.
主要方法:
- 在美国和欧洲使用三个AED模型 (HS1,FRx,FR3) 来分析2358例成年OHCA病例的ECG数据.
- 按AED用户分组案例:无人响应者 (HS1),训练有素的第一响应者 (FRx) 和EMS (FR3).
- 冲击成功率和再振动率的比较,与AMSA和冲击阻抗协会的回归分析.
主要成果:
- 总体冲击疗效在未受试者 (95.0%) 中最高,其次是受过培训的第一响应者 (94.0%) 和EMS (86.6%) (p < 0.001).
- 第一次冲击的疗效也有利于未经培训的第一响应者 (94.5%) 和EMS (89.0%) (p = 0.007) 的未经培训的第一响应者 (96.9%).
- 重振率有显著的变化 (p = 0.016),较高的AMSA与降低的重振率相关 (HR,0.95). 冲击阻抗与疗效或再振动无关.
结论:
- 来自AED的低能量的双相冲击在各种用户场景中非常有效,独立于冲击阻抗.
- 与受过培训的急救人员和EMS相比,未受过培训的急救人员表现出更高的冲击效率和更低的再振动率,这可能是由于反应时间更短.
- 虽然AMSA会影响心电复发,但其他因素可能会导致用户群体之间观察到的AED结果差异.
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