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- Title
The effect of pharmacologic erection on the dorsal nerve of the penis.
- Authors
Yang, Claire C.; Bradley, William E.; Berger, Richard E.; Yang, C C; Bradley, W E; Berger, R E
- Abstract
The dorsal nerve of the penis (DNP) is the primary source of afferent somatic input from the penis and is critical in the male sexual functions of erection and ejaculation. Using genitourinary electrodiagnostic techniques, this study was conducted to investigate the effect of pharmacologic erection on the DNP. Three tests were administered, and the changes in the DNP between flaccid, stretched, and erect states were examined. Calculated nerve conduction velocity (cNCV) measurements of the DNP increased with pharmacologic erection because mechanical straightening of the nerve allowed for a more precise measurement of nerve length. The latencies of the cortical evoked response and the bulbocavernosus reflex were not significantly changed with stretch or pharmacologic erection. In the evaluation of impotence, cNCV DNP measurements should be performed on the erect penis.
- Subjects
PENIS physiology; EVOKED potentials (Electrophysiology); PENIS; NEUROPHYSIOLOGY; PHARMACOLOGY; TIME; REFLEXES; PENILE erection; NEURAL conduction; PARASYMPATHOLYTIC agents; PHENTOLAMINE; VASODILATORS; INNERVATION; PHARMACODYNAMICS
- Publication
Muscle & Nerve, 1997, Vol 20, Issue 11, p1439
- ISSN
0148-639X
- Publication type
journal article
- DOI
10.1002/(SICI)1097-4598(199711)20:11<1439::AID-MUS12>3.0.CO;2-X