Evaluation of Paresthesia Elicited by Spinal Cord Stimulation Using Somatosensory Evoked Potential Interference

Stimulus strengths for recent spinal cord stimulation (SCS) paradigms, including burst and high dose, are set below the paresthesia threshold. Paresthesia is induced in painful areas by tonic stimulation to determine the stimulation level of the spinal cord before applying subthreshold SCS. Therefore, confirming paresthesia through tonic stimulation is an important prerequisite for effective pain control. In this study, we used somatosensory evoked potential (SEP)-SCS interference to investigate the clinical significance of paresthesia.