急性牙状核深度大脑刺激调节慢性中风幸存者的皮质运动兴奋性
Xin Li1, Kenneth B Baker2, Kyle O'Laughlin1
1Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
Brain stimulation
|March 3, 2025
概括
牙状核的深度大脑刺激 (DN-DBS) 通过增加皮质运动刺激性来增强中风幸存者的上肢运动功能. 这种效应与白质完整性有关,并预测长期的运动效益.
科学领域:
- 神经科学是一个神经科学.
- 康复医学 康复医学 康复医学
- 神经调节是一种神经调节.
背景情况:
- 牙状核的深度大脑刺激 (DN-DBS) 是一种新兴的治疗方法,用于改善中风后的上肢 (UE) 运动功能.
- 在慢性中风幸存者中研究急性DN-DBS的生理机制对于了解其治疗潜力至关重要.
研究的目的:
- 调查慢性中风幸存者的DN-DBS背后的急性生理机制.
- 探索急性DN-DBS效应,基线神经成像和临床措施之间的关系.
- 评估急性生理变化与慢性运动改善之间的关联.
主要方法:
- 一个模拟控制的双盲交叉实验,涉及12名慢性中风参与者,他们有中度至严重的UE损伤.
- 进行了急性 (≥45分钟) 活动和假 DN-DBS 治疗.
- 经磁刺激 (TMS) 被用于评估皮质运动生理学.
主要成果:
- 活跃的DN-DBS显著增加了皮层运动刺激能力 (降低了活跃的运动值).
- 皮质运动兴奋度的增加与皮质脊髓和牙 - 骨髓 - 皮质路径的微结构完整性保持相关.
- 急性兴奋能力的增加与慢性DN-DBS和康复的更大的灵巧性改善有关.
结论:
- 急性DN-DBS增强了慢性中风幸存者的皮质运动兴奋性,具有中度至重度的UE损伤.
- 急性DN-DBS的生理影响取决于白质道的结构完整性.
- 研究结果支持DN-DBS作为中风后运动恢复的潜在疗法,并将TMS作为监测治疗反应的工具.
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