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Published on: January 17, 2011
Otoscopy-based diagnosis of paediatric acute otitis media: An evaluation of guideline adherence
Jacob Joel Kirsh Carson1, Natalie Urbach1, Kirk Leifso1
1Department of Pediatrics, Queen's University, Kingston, Ontario, Canada.
Objectives:
Over diagnosis of acute otitis media (AOM) may lead to unnecessary antibiotic prescriptions and overuse of health care resources. To date, no study has determined which otoscopy findings frontline physicians use to diagnose AOM, and whether lack of adherence to otoscopy guidelines contributes to over diagnosis.
Methods:
In this single-centre multisite retrospective chart review, we determined adherence to Canadian Paediatric Society (CPS) AOM diagnosis guidelines based on documented otoscopy findings in patient charts.
Results:
Of 192 cases of nonperforated AOM with a documented physical examination, only 124 (64.6%) had otoscopy findings of both middle ear effusion and inflammation, consistent with CPS criteria. Fifty-eight cases (30.2%) had documented middle ear inflammation without effusion. The most reported otoscopy findings were a red and bulging tympanic membrane (TM) in 81 (42.2%) cases. The presence (n = 104) or absence (n = 4) of bulging was only documented in 108 (56.2%) cases. The odds ratio for cases meeting diagnostic criteria was significantly higher for those seen by paediatricians compared with general providers (OR 2.82, 95% CI: [1.44-5.53], P < 0.01), for those assessed by residents or medical students compared with staff physicians (OR 2.04, 95% CI [1.05-3.98], P = 0.03), and those of older age (OR 1.14, 95% CI [1.00-1.29], P = 0.044).
Conclusions:
This study highlights that AOM over diagnosis may be related to lack of adherence to diagnosis guidelines. Simplification of guidelines, such as more explicitly requiring a bulging TM, may improve diagnostic accuracy and reduce health care resource overuse for this common paediatric condition.
Insights
Overdiagnosis of acute otitis media (AOM) is common, with many cases lacking key diagnostic signs like middle ear effusion. Adherence to guidelines, particularly regarding tympanic membrane bulging, could improve accuracy and reduce unnecessary antibiotic use in children.
Area of Science:
- Pediatrics
- Otolaryngology
- Evidence-based Medicine
Background:
- Overdiagnosis of acute otitis media (AOM) leads to unnecessary antibiotic prescriptions and healthcare resource overuse.
- Current otoscopy guidelines for AOM diagnosis exist, but physician adherence and its impact on overdiagnosis are not well-studied.
Purpose of the Study:
- To determine frontline physician adherence to Canadian Paediatric Society (CPS) AOM diagnosis guidelines.
- To investigate whether lack of adherence to otoscopy findings contributes to AOM overdiagnosis.
Main Methods:
- Retrospective chart review of 192 cases of nonperforated AOM with documented physical examinations.
- Assessment of otoscopy findings against CPS AOM diagnostic criteria.
Main Results:
- Only 64.6% of cases met CPS criteria (middle ear effusion and inflammation).
- 30.2% had documented middle ear inflammation without effusion.
- Bulging tympanic membrane (TM) presence was documented in only 56.2% of cases.
- Higher diagnostic accuracy was associated with pediatricians, trainees, and older patients.
Conclusions:
- Lack of adherence to AOM diagnosis guidelines may contribute to overdiagnosis.
- Simplifying guidelines to explicitly require a bulging TM could improve diagnostic accuracy.
- Improved diagnostic accuracy can reduce healthcare resource overuse for AOM.
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