1. Morphological macrovascular alterations in complex regional pain syndrome type I demonstrated by increased intima-media thickness
- Author
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Derenthal Nicola, Maecken Tim, Krumova Elena, Germing Alfried, and Maier Christoph
- Subjects
Complex regional pain syndrome ,Macrovascular changes ,Intima-media thickness ,Inflammatory alterations ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Although intima-media thickness (IMT) was increased in several inflammatory diseases, studies investigating whether the inflammatory processes lead to macrovascular alteration with increased IMT in complex regional pain syndrome (CRPS) lack. Methods Using ultrasound (high-resolution B-mode), we compared bilaterally the IMT of the common carotid artery (CCA-IMT), the radial artery (RA-IMT), the brachial artery (BRA-IMT) and the quotient QRA/CCA, in CRPS type I (n=17), peripheral nerve injury (PNI, n=17) and pain-free controls (PFC, n=22, matched to CRPS by gender, age and traditional cardiovascular risk factors). Statistics: Spearman’s correlation, paired t-test, ANOVA (p Results Compared to PFC, RA-IMT were significantly increased in both patient groups bilaterally (mean±standard deviation, CRPS affected side vs. PFC dominant side: 0.32±0.08 mm vs. 0.19±0.08 mm, pRA/CCA (CRPS affected-side vs. PFC dominant side: 0.49±0.12 vs. 0.30±0.11, pRA/CCA was significantly higher on the affected side compared to PNI (pRA/CCA on the affected side (p Conclusions The increased IMT of peripheral arteries in CRPS suggests ongoing inflammatory process. Until now, only endothelial dysfunction has been reported. The presented morphological macrovascular alterations might explain the treatment resistance of some CRPS patients.
- Published
- 2013
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