Feasibility and optimal choice of stimulation parameters for supramaximal stimulation of motor evoked potentials.

ABSTRACT:

Purpose

The aim was to investigate the feasibility and optimal stimulation parameters for supramaximal stimulation of muscle recorded transcranial electrical stimulation motor evoked potentials (mTc-MEP).

Methods

Forty-seven consecutive patients that underwent scoliosis surgery were included. First, the feasibility of supramaximal stimulation was assessed for two settings (setting 1: pulse duration 0.075ms, interstimulus interval (ISI) 1.5ms; setting 2: pulse duration 0.300ms, ISI 3ms). Thereafter, three mTc-MEP parameters were considered for both settings; (1) elicitability, (2) amplitude, and (3) if supramaximal stimulation was achieved with ≥ 20 V below maximum output. Finally, ISIs (1ms-4ms) were optimized for setting 1.

Results

Nine patients (19.15%) were exclude

SUBMITTER: Dulfer SE 

PROVIDER: S-EPMC10175431 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature