Variability in experimental pain studies: nuisance or opportunity?

Variability in experimental pain studies: nuisance or opportunity?
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实验性疼痛研究的变异性:麻烦还是机会?

DOI:
10.1016/j.bja.2020.11.005
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发表时间:
2021
影响因子:
9.8
通讯作者:
LorimerMoseley,G
LorimerMoseley,G
中科院分区:
医学1区
文献类型:
--
作者:
Madden,VictoriaJ;Kamerman,PeterR;Catley,MarkJ;Bellan,Valeria;Russek,LeslieN;Camfferman,Danny;LorimerMoseley,G

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疼痛是一种可变的体验,即使在健康人中使用受控伤害性刺激的研究中也是如此。[1]考虑到伤害感受(编码伤害性刺激的神经过程)和疼痛(一种有意识的体验)并不具有同构关系,这种差异性并不令人惊讶。2.疼痛受一系列生物、认知、情境和情绪相关因素的影响,这些因素可能随时变化。3.即使是一个控制良好的实验室环境,对所有这些因素的控制范围也是有限的,而且很少能引起高度一致的疼痛。疼痛报告的个体内变异性可能反映了重要的个人特征,这些特征与我们对疼痛的理解和镇痛策略的影响有关。考虑到这一点,一些临床研究已经在纵向设计中使用高频疼痛评估来检查个体内变异性可能与临床结局相关的可能性。他们报告说,疼痛评分的个体内变异性可能与抑郁症、4、5自我效能、4情绪和身体功能有关,6并可能预测假药物或积极治疗的益处。7 e9然而,人类的实验性疼痛研究在很大程度上忽视了明确承认以下因素的重要性:
EditordPain is a variable experience, even in studies that use controlled nociceptive stimuli in healthy humans. 1 This variability is unsurprising considering that nociception (the neural process of encoding noxious stimuli) and pain (a conscious experience) do not share an isomorphic relationship. 2 Pain is influenced by a broad range of biological, cognitive, contextual, and mood-related factors that may vary from moment to moment. 3 Even a well-controlled experimental laboratory environment presents limited scope to control all these factors, and it is rare for pain to be elicited with high consistency.The intraindividual variability in pain reporting may reflect important personal features that are relevant to our understanding of pain and the impact of analgesic strategies. With this in mind, several clinical studies have used high frequency pain assessment in longitudinal designs to examine the possibility that intraindividual variability may be relevant to clinical outcomes. They report that intraindividual variability in pain ratings may be related to depression, 4, 5 self-efficacy, 4 emotional and physical functioning, 6 and may predict benefits from sham medication or active treatments. 7 e9 Nevertheless, experimental pain research in humans has largely neglected to acknowledge explicitly the importance of
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