Bipolar transesophageal thoracic spinal cord stimulation: A novel clinically relevant method for motor-evoked potentials.

ABSTRACT:

Objective

Although transesophageal motor-evoked potential elicited by monopolar cervical cord stimulation is more stable and rapid in response to ischemia than transcranial motor-evoked potential in canine experiments, direct cervical alpha motor neuron stimulation precludes clinical application. We evaluated a novel stimulation method using a bipolar esophageal electrode to enable thoracic cord stimulation.

Methods

Twenty dogs were anesthetized. For bipolar transesophageal stimulation, the interelectric pole distance was set at 4 cm. Changes in amplitude in response to incremental stimulation intensity (100-600 V) were measured to evaluate stability. Spinal cord ischemia was induced by aortic balloon occlusion at the T8 to T10 level for 10 minutes to evaluate response time

SUBMITTER: Yamanaka K 

PROVIDER: S-EPMC8303062 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature