Abstract | OBJECTIVE: To determine the expansile and absorptive properties of the expandable ear wick when tested with commonly prescribed ear drop preparations. DESIGN: MAIN OUTCOME MEASURES: Weight, length and width of otowick following exposure to ear drops. RESULTS: There was a marked difference in the absorption and expansion of the otowick when different drops were used. This corresponded to the aqueous or oil base of each preparation. All aqueous ear drop preparations (i.e. Gentisone HC, Sofradex, Otomize, Betnesol, Exocin and EarCalm) produced similar rates of absorption into, and expansion of, the otowick. The oil-based ear drop preparations (i.e. Canesten, Locorten-Vioform and ichthammol glycerin) failed to expand the wick and showed poor rates of absorption into the wick. CONCLUSION: Expandable ear wicks should only be used in conjunction with aqueous ear drops. When using expandable otowicks as an adjunct to treating fungal otitis externa, acetic acid ear drops should be prescribed, as all other anti-fungal drops are oil-based.
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Authors | P J Clamp |
Journal | The Journal of laryngology and otology
(J Laryngol Otol)
Vol. 122
Issue 7
Pg. 687-90
(Jul 2008)
ISSN: 1748-5460 [Electronic] England |
PMID | 18485255
(Publication Type: Evaluation Study, Journal Article)
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Chemical References |
- Anti-Bacterial Agents
- Drug Combinations
- Gentamicins
- Otomize
- gentisone HC
- Gramicidin
- Framycetin
- Sofradex
- Dexamethasone
- Neomycin
- Hydrocortisone
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Topics |
- Anti-Bacterial Agents
(administration & dosage)
- Dexamethasone
(administration & dosage)
- Drug Combinations
- Ear Diseases
(drug therapy)
- Equipment Design
(standards)
- Framycetin
(administration & dosage)
- Gentamicins
(administration & dosage)
- Gramicidin
(administration & dosage)
- Humans
- Hydrocortisone
(administration & dosage)
- Instillation, Drug
- Neomycin
(administration & dosage)
- Otitis Externa
(drug therapy)
- Tampons, Surgical
- Treatment Outcome
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