感官 thalamus 的 somatotopy:来自疼痛患者的定向深度大脑刺激的输入
Aurelie Leplus1,2, Petru Isan1,2, Anne Balossier3
1Department of Neurosurgery, FHU INOVPAIN, CHU de Nice, Université Côte d'Azur, Nice, France.
Annals of clinical and translational neurology
|April 26, 2024
概括
慢性神经病痛改变了大脑的感官地图. 在腹前后层 (VP) 丘脑中进行的定向深度大脑刺激 (DBS) 揭示了个性化的体质结构,与疼痛患者的典型组织不同.
科学领域:
- 神经科学是一个神经科学.
- 神经外科 神经外科
- 疼痛医学 医学 疼痛医学
背景情况:
- 感官腹前后 (VP) 乳头核通常表现出一个中侧侧索马托托普组织.
- 这个组织将头部,手臂和腿部映射到特定区域.
- 慢性神经病痛可能会导致这种既定的感官地图的改变.
研究的目的:
- 为了研究慢性神经病痛患者的VP体内核的体质.
- 使用定向深度大脑刺激 (DBS) 来映射感官表征.
- 为了比较观察到的体内组织与健康个体的已知组织.
主要方法:
- 一项前性研究涉及六名患有慢性神经病痛的患者,接受VP DBS.
- 使用了方向导线,并在手术后优化了刺激参数.
- 使用Lead-DBS软件建模活化组织体积 (VTA).
- 刺激诱导的麻醉被绘制出来,并与VTA位置相关联.
主要成果:
- 在每个患者的DBS周围观察到个体化体质图的干部,上肢,下肢和头部.
- 这些表示在患者之间有显著的差异.
- 观察到的体形不符合之前描述的,感官 thalamus 的常见组织.
结论:
- 这项研究提供了证据,证明了慢性神经病痛患者的VP乳头体内体位的重组.
- 这一发现,使用定向DBS和VTA建模,支持先前关于疼痛状态中的胸膜重组的报告.
- 结果表明,无论是中央还是外围的慢性疼痛,都可能导致大脑的感官处理发生重大变化.
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