副作用如何提高治疗效果:一个随机试验
Lieven A Schenk1, Tahmine Fadai1, Christian Büchel1
1Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.
Brain : a journal of neurology
|May 3, 2024
概括
轻微的副作用可以表明有效的治疗,改善疼痛缓解和患者的期望. 这项研究探讨了副作用如何影响治疗结果和大脑活动,为临床实践和试验设计提供了见解.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 疼痛管理 疼痛管理
背景情况:
- 治疗的副作用可能会对患者产生负面影响,但也可能表明治疗的有效性.
- 了解将副作用与治疗结果联系起来的心理和神经系统机制至关重要.
研究的目的:
- 调查是否以及如何副作用可以触发积极的治疗期望,并提高治疗结果.
- 探索下降疼痛调节系统在调节这些影响中的作用.
主要方法:
- 一项预先注册的试验 (DRKS00026648),77名健康参与者在鼻喷雾后接受热痛.
- 鼻喷雾剂含有素 (诱导轻度灼热的副作用) 或盐水 (惰性).
- 功能性MRI被用来评估大脑活动,参与者被随机分配到基于对芬太尼存在的持续或知情信念的组.
主要成果:
- 与惰性喷雾剂相比,具有副作用的鼻喷雾剂导致疼痛感知降低.
- 副作用对疼痛的影响受到个人信仰和治疗期望的调节.
- 功能性MRI显示了下降疼痛调节系统的激活,包括前环皮质和周水管灰色.
结论:
- 轻微的副作用可以作为有效治疗的信号,积极影响预期和结果.
- 这些效应是由下降疼痛调节系统调节的.
- 这些发现对优化临床实践具有重要意义,并突出了在安慰剂对照试验中潜在的错误.
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