Reduction in small-fiber nerves may underlie complex regional pain syndrome-I (reflex sympathetic dystrophy)
Researchers at Massachusetts General Hospital (MGH) have found the first evidence of a physical abnormality underlying the chronic pain condition called reflex sympathetic dystrophy or complex regional pain syndrome-I (CRPS-I). In the February issue of the journal Pain, they describe finding that skin affected by CRPS-I pain appears to have lost some small-fiber nerve endings, a change characteristic of other neuropathic pain syndromes.
"This sort of small-fiber degeneration has been found in every nerve pain condition ever studied, including postherpetic neuralgia and neuropathies associated with diabetes and HIV infection," says Anne Louise Oaklander, MD, PhD, director of the MGH Nerve Injury Unit, who led the study. "The nerve damage in those conditions has been much more severe, which may be why its been so hard to detect CRPS-I-related nerve damage."
Sue McGreevey | EurekAlert!
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