Effects of perineural capsaicin treatment on cardiopulmonary reflexes elicited by laryngeal instillations of capsaicin and distilled water in sevoflurane-anesthetized dogs |
| |
Authors: | Mutoh T Kanamaru A Kojima K Nishimura R Sasaki N Tsubone H |
| |
Institution: | Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan. |
| |
Abstract: | The aim of this study was to determine the effect of perineural capsaicin (CAPS) treatment on cardiopulmonary reflexes elicited by topical laryngeal instillation of CAPS and distilled water (DW) in sevoflurane-anesthetized dogs. Cardiopulmonary reflexes elicited by CAPS (10 microg/ml, 10 ml) were attenuated by perineural CAPS treatment to the superior laryngeal nerves (SLNs) (P<0.05), whereas those by DW (10 ml) remained unaffected (P>0.05). The reflex responses to DW that remained even after the perineural CAPS treatment were eliminated by laryngeal anesthesia with lidocaine. These results suggest that cardiopulmonary reflexes from the laryngeal mucosa elicited by CAPS instillation can be blocked by perineural CAPS treatment to the SLNs, which may result from inhibition of the laryngeal CAPS-sensitive C-fiber afferents. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|