皮质大脑缩,妄想和老年手术患者的长期认知衰退之间的关系
Michele Cavallari1, Alexandra Touroutoglou2, Yuta Katsumi2
1Center for Neurological Imaging, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Neurobiology of aging
|May 24, 2024
概括
手术后妄和脑缩独立地预测了老年人的长期认知衰退. 更大的脑缩和更严重的妄想协同恶化了手术后的认知结果.
科学领域:
- 神经科学是一个神经科学.
- 老年医学 老年医学
- 放射学 放射学是一门学科.
背景情况:
- 老年患者手术后 Delirium 与长期认知能力下降 (LTCD) 有关.
- 连接妄和LTCD的潜在神经机制仍然不清楚.
- 神经退行性变化,特别是与阿尔茨海默病 (AD) 相关的变化,是潜在的促成因素.
研究的目的:
- 研究AD和认知衰老特征区域和LTCD中大脑缩率之间的关系.
- 为了检查大脑缩,术后妄想和随着时间推移的认知表现之间的关联.
- 确定脑缩和痴呆症严重程度在术后认知衰退中的独立和协同作用.
主要方法:
- 磁共振成像 (MRI) 用于评估手术前和手术后一年的大脑缩率 (皮层厚度变化).
- 长期认知衰退 (LTCD) 通过在术后六年内使用一般认知表现 (GCP) 评分进行评估.
- 该研究包括117名没有痴呆症的选择性手术患者 (平均年龄76岁).
主要成果:
- 在AD标志和老化标志区域中,较大的缩与LTCD有显著的关联.
- 在患有 Delirium 和没有 Delirium 的患者之间,缩率没有显著差异.
- 痴呆症严重程度和大脑缩之间的相互作用显著影响了LTCD,表明了协同效应.
结论:
- 皮质缩率和狂妄症的严重程度是独立的,但协同作用的因素,有助于老年人术后认知能力下降.
- 这些发现强调了在手术患者的认知健康管理中考虑神经退行过程和急性妄想的重要性.
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