FROM:
British Medical Journal 1997 (May 24); 314 (7093): 1526–1529 ~ FULL TEXT
Christopher Del Mar, Paul Glasziou, Mauricio Hayem
Centre for General Practice,
University of Queensland,
Graduate School of Medicine,
Brisbane, Australia.
Objective: To determine the effect of antibiotic treatment
for acute otitis media in children.
Design: Systematic search of the medical literature to
identify studies that used antibiotics in randomized controlled
trials to treat acute otitis media. Studies were examined blind,
and the results of those of satisfactory quality of methodology
were pooled.
Subjects: Six studies of children aged 7 months to 15
years.
Main outcome measures: Pain, deafness, and other
symptoms related to acute otitis media or antibiotic
treatment.
Results: 60% of placebo treated children were pain free
within 24 hours of presentation, and antibiotics did not
influence this. However, at 2-7 days after presentation, by which
time only 14% of children in control groups still had pain, early
use of antibiotics reduced the risk of pain by 41% (95%
confidence interval 14% to 60%). Antibiotics reduced
contralateral acute otitis media by 43% (9% to 64%). They seemed
to have no influence on subsequent attacks of otitis media or
deafness at one month, although there was a trend for improvement
of deafness at three months. Antibiotics were associated with a
near doubling of the risk of vomiting, diarrhoea, or rashes (odds
ratio 1.97 (1.19 to 3.25).
Conclusions: Early use of antibiotics provides only
modest benefit for acute otitis media: to prevent one child from
experiencing pain by 2-7 days after presentation, 17 children
must be treated with antibiotics early.
Key messages
There is wide variation in the use of antibiotics for early treatment of acute otitis media in children, and we examined the literature by meta-analysis to establish what benefits or harm antibiotics provide
Antibiotics did not influence resolution of pain within 24 hours of presentation, though at 2-7 days after presentation, by which time only 14% of children in control groups still had pain, early use of antibiotics reduced the risk of pain by about 40%
Antibiotics also reduced contralateral acute otitis media but seemed to have little influence on subsequent attacks of otitis media or deafness
Antibiotics were associated with a near doubling of the risk of vomiting, diarrhoea, or rashes
Early use of antibiotics provides only modest benefit for acute otitis media: to prevent one child from experiencing pain by 2-7 days after presentation, 17 children must be treated with antibiotics early
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