Hearing Program for the Dominican Republic Published Studies

Published February 22, 2022

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Despite widespread resident interest in global health and underserved care, few otolaryngology residency programs offer a formal global health experience. This article is the first to characterize a formal otolaryngology global health and underserved care track with a focus on how this curriculum integrates with and supplements resident education. Components of the track include longitudinal limited-resource field experiences in domestic and abroad settings, a related quality improvement project, and completion of a formalized global health educational curriculum. In addition to delivering humanitarian aid, residents in this track obtain a unique educational experience in all 6 core competencies of the Accreditation Council for Graduate Medical Education. Early barriers to implementation included identifying mentorship, securing funding, and managing busy resident schedules. In this work, we detail track components, schedule by track year, keys to implementation, and potential educational pitfalls.

Published June 25, 2022

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Introduction

Hearing loss disproportionately affects low- and middle-income countries. Children with undiagnosed hearing loss may have difficulty with learning, language development, and behavior. The aim of this study was to understand the extent of hearing loss and common otologic disorders among school-age children in the rural western region of the Dominican Republic and to chronical the early stages of a limited-resource, locally-sustained hearing screening program in tandem with a bi-annual surgical mission.

Methods

Hearing screenings were performed for 528 school-age children (1056 ears, age 5-17 years old) over 5 days in a village hospital in Peralta, DR. Testing initially included otoscopy and screening audiometry. Children who referred or could not be conditioned underwent distortion product otoacoustic emissions (OAEs), and tympanometry. Children who referred following both screening audiometry and OAEs were considered to have hearing loss. Those with normal tympanograms were considered potential hearing aid candidates.

Results

Abnormal ear examination/otoscopic results were present in 43 children (8.1%) and included: microtia/atresia, impacted cerumen, ear canal foreign body, serous otitis media, otitis externa, and tympanosclerosis. 55 of 528 school-age children referred following screening audiometry and 7 were unable to condition. Of these 62 children, 56 tolerated OAEs and 20 referred following OAEs (3.8%). Fourteen children had type B or C tympanogram and 6 school-age children who were determined to have chronic otitis media with effusion (COME) underwent myringotomy and pressure equalization tube placement. Ten of 528 children (1.9%) had normal tympanometry and otoscopy, and referred following screening audiometry and OAEs suggesting the patients may be potential hearing aid candidates.

Conclusions

The prevalence of hearing loss in this cohort of children in the rural, western Dominican Republic was high at roughly 4% with roughly 2% of children being potential hearing aid candidates. Nearly 10% of children screened had an abnormal otologic examination; sometimes easily remedied by otolaryngologic intervention. With the support of local leadership, it is feasible to incorporate hearing services into otolaryngology outreach and build locally sustainable programs.