通过自动瞳孔测量和认知范式揭示了急性脑损伤中的隐藏意识
Marwan H Othman1, Markus Harboe Olsen2, Karen Irgens Tanderup Hansen1,3
1Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 8, 2100, Copenhagen, Denmark.
Neurocritical care
|April 11, 2024
概括
自动瞳孔测量可以有效地检测重症监护室 (ICU) 患有意识障碍 (DoC) 的患者使用心理算术任务的隐藏意识. 这种低成本的方法有助于识别认知努力,并改善不响应患者的治疗决策.
科学领域:
- 神经科学是一个神经科学.
- 医疗技术 医疗技术 医学技术
- 临界护理医学 临界护理医学
背景情况:
- 在重症监护室 (ICU) 找出有意识障碍 (DoC) 的隐藏意识对于治疗至关重要.
- 目前缺乏用于检测剩余意识的灵敏,低成本的床边标记器.
研究的目的:
- 调查自动学生计量与认知范式相结合是否可以检测ICU患者的残留意识.
- 评估被动和主动认知任务在识别隐藏意识方面的有用性.
主要方法:
- 预期招募临床反应较低或不反应的ICU患者与DoC.
- 自动瞳孔测量记录了对被动 (视觉,听觉) 和主动 (精神算术) 认知范式的瞳孔膨胀反应.
- 与年龄和性别匹配的健康对照进行比较.
主要成果:
- 积极的认知范式,特别是心理算术,在意识状态之间进行区分.
- 临床不响应的患者表现出17.8%的认知努力检测,而临床响应较低的患者表现出50.0%的检测 (OR4.56,p<0.001).
- 健康对照群的检测率为76.9%;在所有灵敏度分析中,结果一致.
结论:
- 带有心理算术的自动学生计量可靠地识别了急性DoC的ICU患者的认知努力和隐藏的意识.
- 这种技术为评估意识水平提供了一个有前途的低成本床头工具.
- 一个案例突出了持续的认知运动分离,显示在公开意识之前遵循命令.
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