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The aims of this exploratory study were (1) to develop a standardized objective electrophysiological technique with laser-evoked potentials to assess dorsal root damage quantitatively and (2) to correlate these LEP measures with clinical parameters and sensory abnormalities (QST) in the affected dermatome.Thirty-eight patients with painful radiculopathy and 20 healthy subjects were investigated with...
Background
Repetitive painful laser stimuli lead to physiological laser‐evoked potential (LEP) habituation, measurable by a decrement of the N2/P2 amplitude. The time course of LEP‐habituation is reduced in the capsaicin model for peripheral and central sensitization and in patients with migraine and fibromyalgia. In the present investigation, we aimed to assess the time course of LEP‐habituation...
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