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The antibacterial activity of acetic acid and Burow's solution as topical otological preparations

Published online by Cambridge University Press:  29 June 2007

M. A. Thorp ,
J. Kruger ,
S. Oliver ,
E. L. K. Nilssen  and
C. A. J. Prescott
M. A. Thorp*
Affiliation:
Departments of Otolaryngology, University of Cape Town, South Africa.
J. Kruger
Affiliation:
Departments of Microbiology, University of Cape Town, South Africa.
S. Oliver
Affiliation:
Departments of Microbiology, University of Cape Town, South Africa.
E. L. K. Nilssen
Affiliation:
Departments of Otolaryngology, University of Cape Town, South Africa.
C. A. J. Prescott
Affiliation:
Departments of Otolaryngology, University of Cape Town, South Africa.
*
Address for correspondence: Dr M. A. Thorp, Department of Otolaryngology, Groote Schuur Hospital, Observatory 7925, Republic of South Africa.
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Abstract

At present there are no topical otological preparations on the World Health Organisation's essential drug list, largely due to the ototoxic potential of preparations containing aminoglycoside antibiotics. Acetic acid and Burow's solution have long been used in the treatment of the discharging ear. The aim of this study was to ascertain the antibacterial activity of these two preparations against the most commonly occurring bacteria isolated from discharging ears in our department. Twenty fresh isolates of each of the following organisms – Pseudomonas aeruginosa, Staphylococcus aureus, Proteus mirabilis and Streptococcus pyogenes – were plated onto blood agar and tested against one per cent, two per cent and three per cent acetic acid and Burow's solution (13 per cent aluminium acetate). The activity of each agent was ascertained by the size of the zone of inhibition of bacterial growth. Burow's solution showed significantly larger average zones of inhibition than acetic acid (p < 0.001). The two per cent and three per cent acetic acid as well as the Burow's solution were active against all the organisms tested.

Keywords

Otitis media, suppurativeTherapy
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 112 , Issue 10 , October 1998 , pp. 925 - 928
Copyright
Copyright © JLO (1984) Limited 1998

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