Management of otitis media using Agency for Health Care Policy and Research guidelines. The Agency for Health Care Policy and Research

Otitis Media Middle Ear Effusion Identification and Characterization Using an Optical Coherence Tomography Otoscope

OBJECTIVE

To determine the feasibility of detecting and differentiating middle ear effusions (MEEs) using an optical coherence tomography (OCT) otoscope.

STUDY DESIGN

Cross-sectional study.

SETTING

US tertiary care children's hospital.

SUBJECTS AND METHODS

Seventy pediatric patients undergoing tympanostomy tube placement were preoperatively imaged using an OCT otoscope. A blinded reader quiz was conducted using 24 readers from 4 groups of tiered medical expertise. The primary outcome assessed was reader ability to detect presence/absence of MEE. A secondary outcome assessed was reader ability to differentiate serous vs nonserous MEE.

RESULTS

OCT image data sets were analyzed from 45 of 70 total subjects. Blinded reader analysis of an OCT data subset for detection of MEE resulted in 90.6% accuracy, 90.9% sensitivity, 90.2% specificity, and intra/interreader agreement of 92.9% and 87.1%, respectively. Differentiating MEE type, reader identification of nonserous MEE had 70.8% accuracy, 53.6% sensitivity, 80.1% specificity, and intra/interreader agreement of 82.9% and 75.1%, respectively. Multivariate analysis revealed that age was the strongest predictor of OCT quality. The mean age of subjects with quality OCT was 5.01 years (n = 45), compared to 2.54 years (n = 25) in the remaining subjects imaged (P = .0028). The ability to capture quality images improved over time, from 50% to 69.4% over the study period.

CONCLUSION

OCT otoscopy shows promise for facilitating accurate MEE detection. The imageability with the prototype device was affected by age, with older children being easier to image, similar to current ear diagnostic technologies.

Practice patterns versus practice guidelines in pediatric otitis media

OBJECTIVE

To study the practice patterns of physicians and their adherence to an evidence-based practice guideline (PG) on pediatric otitis media with effusion. We hypothesized that overall knowledge of the recommendations from the guidelines would be less than 75%, and that specialist physicians would have better knowledge of the recommendations than generalist physicians.

METHODS

We performed a survey study of 1167 otolaryngologists, pediatricians, and pediatric otolaryngologists. Each physician was sent a 6-item survey asking about their practice patterns and treatment preferences for young children with otitis media with effusion. We compared responses between different specialties.

RESULTS

The overall response rate was 48%. Only 8 (1.4%) of the 558 responding physicians answered all 6 items congruent with the PG. Overall, pediatricians, otolaryngologists, and pediatric otolaryngologists had similar total scores, but different scores on individual items.

CONCLUSIONS

These results indicate that the practice patterns of pediatricians, otolaryngologists, and pediatric otolaryngologists differ from the recommendations of an evidence-based PG. In particular, 2 items covering key treatment recommendations were answered in agreement with the PG by fewer than half of the physicians. It is not clear from this study whether these discrepancies were due to poor dissemination or knowledge concerning the PG, or disagreement with its recommendations.