Abstract
Effects of perineural capsaicin (CAPS) treatment on compound action potentials of the superior laryngeal nerve (SLN) afferents were studied in 6 sevoflurane-anesthetized dogs. Perineural CAPS (100 μg/ml) to the bilateral SLNs reduced (P<0.01) the peak and integral amplitudes of the C-wave of the compound action potential. By contrast, the perineural CAPS had no effect on the A-wave component (P>0.05). Removal of the perineural CAPS recovered the C-wave to pretreatment level. The perineural CAPS treatment selectively blocks C-wave compound action potentials of the SLN afferents, providing a useful tool for studies of laryngeal C-fibers in respiratory physiology.
Original language | English |
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Pages (from-to) | 117-120 |
Number of pages | 4 |
Journal | Journal of Veterinary Medical Science |
Volume | 62 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2000 Jan |
Keywords
- Canine
- Conduction velocity
- Laryngeal C-fiber
ASJC Scopus subject areas
- veterinary(all)