在低度质瘤内和周围的低弹性神经认知系统的多变量映射
Sam Ng1,2, Sylvie Moritz-Gasser1,2, Anne-Laure Lemaitre1,3
1Département de Neurochirurgie, Hôpital Gui de Chauliac, Centre Hospitalier Universitaire de Montpellier, 34090 Montpellier, France.
Brain : a journal of neurology
|April 24, 2024
概括
扩散性低度质瘤的脑部手术可能会影响认知功能. 这项研究确定了与恢复不良相关的特定大脑区域和区域,有助于手术规划和康复策略,以获得更好的患者结果.
科学领域:
- 神经科学是一个神经科学.
- 神经外科 神经外科
- 认知心理学 认知心理学
背景情况:
- 大脑在神经损伤后具有功能补偿能力,受其解剖功能架构的影响.
- 扩散性低度质瘤手术旨在最大限度地切除瘤益处,但在神经可塑性有限的区域可能会面临认知障碍的风险.
- 了解哪些大脑结构对切除的抵抗力较低,对于优化手术结果至关重要.
研究的目的:
- 为了确定与扩散性低度质瘤患者手术后认知结果较差相关的大脑结构.
- 分析瘤内和瘤外切除特征对认知恢复的影响.
- 为那些对认知补偿不那么敏感的结构绘制损伤-症状关系.
主要方法:
- 利用400名扩散性低度质瘤患者的队列,这些患者接受了认知映射的清醒手术.
- 进行了神经心理评估,包括手术前和手术后3个月的18个子测试.
- 应用了以地形为重点和脱节为重点的多变量病变症状映射 (支持向量回归) 来识别关键切除区域.
主要成果:
- 整体认知恢复显著,尽管平均切除程度为92.4%,但18项任务中的13项完全恢复.
- 在图片命名中缺乏恢复与左下旋和下纵长的损伤相关.
- 与左前/后带带关联的语义流性受损;与左背中侧额叶皮质和额叶叶道相关的语音流性.
- 空间探索缺陷与右背中中前额叶皮层损伤相关.
- 探索性分析表明,特定通道 (例如,左未切割的囊,皮质上层通道,前体结质体) 和区域 (海马体,准海马体,右额头-半径区域) 的瘤切除偶尔与较少明显的恢复有关.
结论:
- 确定了具有有限弹性和预测标记器的特定神经系统,用于在质瘤手术后的认知恢复.
- 在大多数情况下,发现超瘤切除在认知上是可以容忍的,挑战了关于其影响的假设.
- 这些发现为完善外科计划和为扩散性低度质瘤患者制定有针对性的康复策略提供了关键的见解.
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