期刊
PAIN
卷 140, 期 1, 页码 8-22出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1016/j.pain.2008.07.003
关键词
Complex regional pain syndrome; Skin temperature; Sympathetic nervous system; Thermoregulation; Diagnostic criteria
资金
- Bundesministerium fur Bildung und Forschung (BMBF) [Grants 01EM0107, 01EM0502]
Despite the development of the IASP criteria, diagnosing complex regional pain syndrome (CRPS) remains a challenge because all symptoms vary interindividually, including the vascular abnormalities. Previous studies showed that skin temperature asymmetries between the affected and contralateral diagnosing CRPS. However, they were either assessed only at one single point in in time or during specific investigations including controlled thermoregulatory modulation or sympathetic activity which limits their practicability. The present study evaluated long-term skin temperature changes under everyday circumstances in 22 patients with CRPS, 18 patients with limb pain of other origin and 23 healthy controls. The asymmetries in skin temperature and oscillation number (Q(Oscill)), the percentage of assessed time with a-synchron temperature changes on both body sides and the determination coefficient of the individual regression were compared between the groups. Patients with CPRS differencediffered significantly from healthy controls in nearly all parameters. Minor differences between both patient groups were found regarding, the percentage of assessed time with side difference >2 degrees C (Delta T2). However, both patient groups differed significantly in parameters characterizing the skin temperature dynamics. A sum score (2*Q(Oscill) + r(id)(2) + Delta T2) allowed diagnosing CRPS with a specificity of 67% vs. patients with other painful diseases and 79% vs. healthy controls (sensitivity: 73%, respectively, 94%) and reflected the severity of the dysfunction in CRPS better than the mean skin temperature side differences alone. The applied skin temperature analysis can be easily applied in the clinical settings and serves as further facet in the difficult diagnosis of CRPS. (C) 2008 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.
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