Ewha Med J.  1999 Mar;22(1):33-40. 10.12771/emj.1999.22.1.33.

Effects of Topical Application of Oxymetazoline on Cultured Human Nasal Mucosa: Changes of Ciliary Activity and Histopathologic Findings

Affiliations
  • 1Department of Otolaryngology, College of Medicine, Ewha Womans University, Korea.
  • 2Ewha Medical Research Center, College of Medicine, Ewha Womans University, Korea.

Abstract


OBJECTIVES
The aim of this study is to obtain the basic knowledge for safer clinical use of oxymetazoline, one of nasal decongestants, by observing changes of ciliary activity and histopa-thologic findings after topical application of oxymetazoline to the cultured human basak mucosa.
METHODS
The nasal mucosa, obtained from the inferior tubinates in healthy non-smokers without any nasal symptoms or signs, was cultured and then, exposed to oxymetazoline solu-tion at different concentrations from 0.0123% to 0.25%, containing no preservatives. Ciliary activity was observed under an inverted microscope and the histopathology of the mucosa was examined by light microscopy 1,3,6,12,24 and 48 hours after exposure, respectively.
RESULTS
Oxymetazoline impaired ciliary activity and induced mucosal injury at dose- and time-dependent patterns. Once the ciliary activity disappeared, it was not restored at least for the next 48 hours. Furthermore, these functional and morphologic changes resulted from applying oxymetazoline at the concentration of clinical use.
CONCLUSION
Oxymetazoline as a topical vasoconstrictor should be administered for the minimal period even at clinical dose.

Keyword

Oxymetazoline; Culture; Human nasal mucosa; Ciliary activity; Histopathology
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