Evoked Responses from the Pudendal Nerve

Abstract

Evoked responses on stimulation of the dorsal nerve of the penis were recorded in a group of healthy male subjects and in patients with distinct neurologic lesions. Responses were recorded over the bulbocavernosus muscle by a new percutaneous method and over the spinal cord and cerebral cortex by computer averaging of multiple stimuli applied to the pudendal nerve. The neurologic lesions in patients with bladder symptoms secondary to diabetic peripheral neuropathy, myelopathy owing to multiple sclerosis and Parkinson''s disease were confirmed using these tests, as well as cystometry and somatosensory evoked responses from the posterior tibial nerve.