Is it possible to diagnose acute otitis media accurately in primary health care?
Karin Blomgren1, Anne Pitkäranta
1Department of Otorhinolaryngology, Helsinki University Central Hospital, Finland. karin.blomgren@fimnet.fi
Background:
Acute otitis media causes human suffering and enormous costs to society. Symptoms of acute otitis media overlap those of the common cold, and diagnostic methods confirming the diagnosis are used only occasionally. Uncertainty in diagnostics may lead either to overdiagnosis and unnecessary treatment or to underdiagnosis and an increase in complications.
Objective:
Our aim was to evaluate the inter-rater agreement in diagnosis of acute otitis media for children in primary health care.
Methods:
The GP on duty and the otorhinolaryngology resident at a primary health care clinic examined the same 50 children with caregiver-suspected acute otitis media. The otorhinolaryngologist photographed the tympanic membranes. Afterwards, two experienced clinicians evaluated the photographs with and without tympanograms. Diagnostic rates and diagnostic methods between clinicians were compared.
Results:
The otorhinolaryngologist diagnosed acute otitis media in 44% and the GP in 64%. The GP based the diagnoses on symptoms and on the colour of the tympanic membrane, whereas the otorhinolaryngologist paid more attention to the movement and position of the tympanic membrane.
Conclusion:
The use of a pneumatic otoscope and tympanometry reduces the number of acute otitis media diagnoses by >30%, suggesting that acute otitis media may be misdiagnosed often. Between clinicians, there was a substantial discrepancy in diagnoses of acute otitis media.
Insights
Diagnosing acute otitis media (AOM) in children shows significant variation among clinicians. Using advanced tools like tympanometry can reduce AOM diagnoses, highlighting potential misdiagnoses and the need for improved diagnostic accuracy.
Area of Science:
- Pediatrics
- Otolaryngology
- Primary Health Care
Background:
- Acute otitis media (AOM) presents diagnostic challenges due to overlapping symptoms with the common cold.
- Diagnostic uncertainty in AOM can lead to both overdiagnosis and underdiagnosis, impacting patient outcomes and healthcare costs.
Purpose of the Study:
- To assess the inter-rater reliability in diagnosing acute otitis media in pediatric primary care settings.
- To identify discrepancies in diagnostic approaches between general practitioners and otolaryngologists.
Main Methods:
- Fifty children with suspected AOM were examined by a general practitioner (GP) and an otolaryngology resident.
- Tympanic membrane images were captured and evaluated by experienced clinicians, with and without tympanometry data.
- Diagnostic rates and methods were compared between the examining clinicians.
Main Results:
- The otolaryngologist diagnosed AOM in 44% of cases, while the GP diagnosed it in 64%.
- GPs relied on symptoms and tympanic membrane color, whereas otolaryngologists focused on tympanic membrane movement and position.
- The use of pneumatic otoscopy and tympanometry decreased AOM diagnoses by over 30%.
Conclusions:
- There is substantial disagreement in AOM diagnoses between different clinicians.
- The high diagnostic discrepancy suggests frequent misdiagnosis of acute otitis media.
- Implementing objective diagnostic tools like tympanometry is crucial for accurate AOM diagnosis.
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