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Published on: May 17, 2012
Delayed somatosensory conduction in acute painful neuropathy of diabetes
1Third Department of Internal Medicine, Hirosaki University School of Medicine, 5, Zaifucho, Hirosaki 036, JapanDepartment of Neurology, Hirosaki University School of Medicine, 5, Zaifucho, Hirosaki 036, Japan.
Abstract:
We examined the peripheral-central sensory conduction by using somatosensory evoked potential (SEP) in a 48 year old diabetic patient with acute painful neuropathy. The sural, ulnar and median sensory nerve conduction and SEP elicited by wrist stimulation showed no abnormalities, nevertheless, the tibial nerve SEP revealed absent spinal N19 and a remarkable delay of the cortical arrival time. These findings suggest involvement of the dorsal roots or the dorsal column in the acute painful neuropathy of diabetes.
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The somatosensory system is divided into three main pathways: the dorsal (or posterior) column-medial lemniscus, spinothalamic (or anterolateral), and spinocerebellar pathways.
The dorsal...
