Spinal Cord Potentials Evoked by Intercostal Nerve Stimulation. Clinical Application

Abstract

We attempted to record spinal evoked potentials epidurally stimulating intercostal nerve in cats and man.
The first negative potential (N1) conducted mainly in dorsal tract, and its spinal conduction velocity was about 50m/s in cats.
The amplitude of the first component was not significantly altered by the frequency of stimulation up to 50Hz in cats and man.
The peak latency of the first component recording from cervical epidural space was delayed (range, 0.64-1.0ms) acording to stimulating intercostal nerve more caudally in man.