Monophasic transcranial constant-current versus constant-voltage stimulation of motor-evoked potentials during spinal surgery.

ABSTRACT: Constant-voltage and constant-current stimulators may be used for transcranial electrical stimulation of motor evoked potentials (TES-MEP). However, no previous report has determined whether the two monophasic stimulation methods lead to similar responses during intra-operative monitoring. We studied differences in the lateralities of compound muscle action potentials (CMAPs) during intra-operative spinal cord monitoring via TES-MEP using monophasic constant-current and constant-voltage stimulations. CMAPs were bilaterally recorded from the upper and lower limb muscles in 95 patients who underwent elective spine and spinal cord surgery. We used two monophasic stimulation patterns: pattern 1, right anode and left cathode; pattern 2, right cathode and left anode. There were no statistically

SUBMITTER: Masuda K 

PROVIDER: S-EPMC6405953 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature