Skin Temperature during Cold Pressor Test in Fibromyalgia: an Evaluation of the Autonomic Nervous System ?

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Introduction: Fibromyalgia (FM) is a common chronic pain disorder characterized by whole- body pain and multiple symptoms. This study investigated potential dysfunctions of the Autonomic Nervous System (ANS) in FM patients through the measurement of the autonomic response during a cold-water test. Methods : 23 female patients with FM and 15 healthy female controls were recruited. First, FM patients filled out the following questionnaires : PainDETECT, American College of Rheumatology (ACR) criteria of FM, and Profile of Mood States (POMS). Healthy controls only filled out the POMS. Subsequently, all participants immersed their forearm into 1oC cold- water as long as they could tolerate for a maximum of 120 seconds. A thermographic camera recorded skin temperature and its recuperation process. Results : The two groups significantly differed regarding central body temperature, forearm thermography, and peripheral (forearm)-central (ear) temperature ratio. FM patients showed less tolerance to cold water than control participants. Although total temperature decrease, cool- down rate, recuperation between 0 and 20 minutes after withdrawal showed significant intergroup differences, thermal recovery followed similar patterns in both groups. Discussion : Peculiar ANS baseline characteristics are seen in FM patients. Although those patients have reduced ability to sustain low temperatures, therefore limiting extrapolation of inter-group analysis, their thermal-adaptive responses were found different as compared to controls.
Originele taal-2English
Pagina's (van-tot)19-27
Aantal pagina's9
TijdschriftActa Anaesthesiologica Belgica
Volume66
StatusPublished - 2015

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