[A method for assessing analgesia--nociceptive evoked potentials: the first clinical cases].

: The paper describes a new method for assessing analgesia, which is based on the use of a Caube-type electrode. It provides evidence that, unlike stimulation with the standard electrode for somatosensory evoked potentials, Caube-type electrode stimulation may cause late (long-latent) potentials in healthy volunteers, showing the fundamental capacity of selective nociceptor excitation. By using two cases with the pronounced pain syndrome, the authors show changes in nociceptive evokes potentials during epidural analgesia.