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Medical Referral Patterns and Etiologies for Children With Mild-to-Severe Hearing Loss

Judge, Paul D.1; Jorgensen, Erik2; Lopez-Vazquez, Monica3; Roush, Patricia3; Page, Thomas A.4; Moeller, Mary Pat5; Tomblin, J. Bruce2; Holte, Lenore2; Buchman, Craig6

doi: 10.1097/AUD.0000000000000682
Research Article
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Objectives: To (1) identify the etiologies and risk factors of the patient cohort and determine the degree to which they reflected the incidence for children with hearing loss and (2) quantify practice management patterns in three catchment areas of the United States with available centers of excellence in pediatric hearing loss.

Design: Medical information for 307 children with bilateral, mild-to-severe hearing loss was examined retrospectively. Children were participants in the Outcomes of Children with Hearing Loss (OCHL) study, a 5-year longitudinal study that recruited subjects at three different sites. Children aged 6 months to 7 years at time of OCHL enrollment were participants in this study. Children with cochlear implants, children with severe or profound hearing loss, and children with significant cognitive or motor delays were excluded from the OCHL study and, by extension, from this analysis. Medical information was gathered using medical records and participant intake forms, the latter reflecting a caregiver’s report. A comparison group included 134 children with normal hearing. A Chi-square test on two-way tables was used to assess for differences in referral patterns by site for the children who are hard of hearing (CHH). Linear regression was performed on gestational age and birth weight as continuous variables. Risk factors were assessed using t tests. The alpha value was set at p < 0.05.

Results: Neonatal intensive care unit stay, mechanical ventilation, oxygen requirement, aminoglycoside exposure, and family history were correlated with hearing loss. For this study cohort, congenital cytomegalovirus, strep positivity, bacterial meningitis, extracorporeal membrane oxygenation, and loop diuretic exposure were not associated with hearing loss. Less than 50% of children underwent imaging, although 34.2% of those scanned had abnormalities identified. No single imaging modality was preferred. Differences in referral rates were apparent for neurology, radiology, genetics, and ophthalmology.

Conclusions: The OCHL cohort reflects known etiologies of CHH. Despite available guidelines, centers of excellence, and high-yield rates for imaging, the medical workup for children with hearing loss remains inconsistently implemented and widely variable. There remains limited awareness as to what constitutes appropriate medical assessment for CHH.

1Department of Otolaryngology-Head and Neck Surgery, University of Nebraska Medical Center, Omaha, Nebraska, USA

2Department of Communication Sciences and Disorders, University of Iowa, Iowa City, Iowa, USA

3Department of Otolaryngology-Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA

4Department of Allied Health Sciences, University of North Carolina, Chapel Hill, North Carolina, USA

5Center for Childhood Deafness, Boys Town National Research Hospital, Omaha, Nebraska, USA

6Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.

Received October 13, 2017; accepted October 9, 2018.

The authors have no conflicts of interest to disclose.

P. D. J. and E. J. performed analysis of the data, drafted the initial manuscript, and revised and reviewed the manuscript. M. P. M. and J. B. T. conceptualized and designed the study and reviewed and revised the manuscript. M. L. -V. and T. A. P. collected the data, carried out the initial analyses, and reviewed and revised the manuscript. L. H., P. R., and C. B. contributed to study design, reviewed the data collection instruments, coordinated and supervised data collection, and critically reviewed the manuscript. All authors approved the final manuscript as submitted and agree to be accountable for all aspects of the work.

Address for correspondence: Paul D. Judge, Department of Otolaryngology-Head and Neck Surgery, University of Nebraska Medical Center, 989250 Nebraska Medical Center, Omaha, NE 68198, USA. E-mail: paul.judge@unmc.edu

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