Objectives
To detect the prevalences of
Alloiococcus otitidis
, as well as
Haemophilus influenzae
,
Streptococcus pneumoniae
, and
Moraxella catarrhalis
in children with chronic otitis media with effusion (OME) and to simultaneously investigate the colonization of these bacteria in the nasopharynx and palatine tonsils of these patients.
Methods
The study included 34 pediatric patients with OME, and 15 controls without OME. In the study group,
A. otitidis
,
H. influenzae
,
S. pneumoniae
, and
M. catarrhalis
were investigated in the samples obtained from middle ear effusions (MEE), nasopharyngeal swabs (NPS) and tonsillar swabs (TS), using multiplex polymerase chain reaction (PCR) and conventional culture methods. Only the samples obtained from NPS and TS were studied with the same techniques in the control group.
Results
A. otitidis
was isolated only in MEE and only with multiplex PCR method.
A. otitidis
,
S. pneumoniae
,
M. catarrhalis
,
H. influenzae
were identified in 35%, 8.8%, 8.8%, and 2.9%, respectively, in 34 MEE.
A. otitidis
was not isolated in NPS or TS of the study and the control groups.
Conclusion
The prevalence of
A.otitidis
is high in children with OME and
A.otitidis
doesn't colonize in the nasopharynx or tonsil.