嗅觉丰富对经过骨科手术的老年患者周术时神经认知障碍的影响:多中心随机对照试验的研究方案
Xinchun Mei1,2, Jiayi Wang2,3, Zihan Ni1
1Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, People's Republic of China.
Trials
|September 27, 2025
概括
这项研究调查了嗅觉丰富作为一种潜在的干预措施,以减少手术后的神经认知障碍在接受手术的老年人. 结果将为预防手术后认知能力下降的新策略提供信息.
科学领域:
- 老年医学 老年医学
- 神经科学是一个神经科学.
- 手术创新 在外科创新.
背景情况:
- 神经认知障碍在老年手术患者中很常见,原因和治疗方法不明.
- 嗅觉障碍与周围手术神经认知障碍 (PND) 有关.
- 在小鼠的嗅觉丰富减少了类似PND的行为,并改善了大脑结构.
研究的目的:
- 确定嗅觉丰富能否减少骨科手术的老年患者的PND.
- 评估一种新型的非侵入性干预措施的疗效,以预防手术后的认知衰退.
主要方法:
- 这是一项虚假控制的,评估者盲目的,随机的试验,招募了686名65岁或以上的接受骨科手术的患者.
- 干预组每天接受两次嗅觉丰富课程;对照组接受假治疗.
- 主要结局:手术后妄想 (3D-CAM) 的发生率;次要结局:通过神经心理测试延迟神经认知恢复和PND.
主要成果:
- 这部分将在研究完成后填写.
结论:
- 这项试验是首次评估老年外科手术患者的PND嗅觉丰富.
- 它解决了PND的基于证据的治疗方法中的一个关键缺口.
- 这些发现可能会导致一种新的治疗方法,用于手术患者的认知保护.
相关概念视频
Olfaction
48.1K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
48.1K
Olfactory Receptors: Location and Structure
11.2K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
11.2K


