Otitis externa and the use of different antibiotics


A descriptive study , microbiological and pharmacological study was done on hildren
with otitis externa 10 years of age and less attending the pediatrics and the Ear Nose
and Throat department at the Tikrit Teaching hospitals during the period from 1st of
August to 2007 to the last of February 2008. The aim of this study is to evaluate the
response of bacteria causing otitis externa to the newly used antibiotics as compared
with other old drugs. The total number of cases were 27 cases, males were 21 (77.8%
) while the rest were females, 6 cases (22.2% ). Most of the study cases were between
the age of 5-10 years 22 cases (81.5%) .Most of the study cases were from the rural
areas 18 cases (66.7%) . Chronic otitis externa is the commonest form of disease in
the study cases 25 cases (92.6%) .Most of the study cases have nilateral OE 22 cases
(81.5%). Most ofthe cases have infection at the auricle in both male and females, 13
cases (48.1%) and 5 cases (18.5%) respectively. Most ofthe study cases have onset
of the disease during summer time , 21 cases (77. 8% ). Most of the study cases had
history of swimming 19 cases (70.4% ). All the study cases had history of auricular
pain 27 cases (100%), followed by feeling of itching in 16 cases (59.3% All the study
cases have tenderness of the external ears specially on moving the pinna 27 cases
(100%), followed by swelling of the pinna 16 cases (59.3% ).Staph aureus was the
commonest microorganism encountered 18 cases ( 66.7%) followed by pseudomonas
Aeruginosa 2 cases (7.4% ). No growth was found in 6 cases (22.2% ). Regarding
staph aureus, there is significant response to both erythromycin and to the
ciprofloxacin , 18 cases ( 1 00%) and 17 cases (94.4% ) respectively. Regarding the
pseudomonas , only the ciprofloxacin and norfloxacin shows response 2 cases for
each (100%).the study concludes that the use ofnew regime in the treatment of otitis