ABSTRACT
BACKGROUND: Otitis media (OM) has a high prevalence in childhood, and grommet insertion is the most common surgical treatment for OM. The public health system in Australia faces considerable strains, including high demand for Ear, Nose and Throat (ENT) specialists. Extending the scope of practice for audiologists to manage post-operative care for children receiving grommets has the potential to alleviate this burden. METHODS: This non-randomised, cross-sectional study investigated the efficacy and feasibility of an audiology-led clinic for managing paediatric patients after grommet insertion at a tertiary teaching hospital in Western Australia. Senior audiologists reviewed children at 6 weeks and 10 months post-operatively, escalating care to an ENT specialist if abnormalities were observed. Children with normal hearing and patent grommets were reviewed and discharged by the audiologist. RESULTS: A total of 93 children were included (mean age 5.18 ± 2.25 years, range 1.59-11.46 years). At the 6-week review, 72/93 (77 %) presented with in-situ grommets and normal hearing, while 21/93 (22 %) were escalated for immediate ENT care. At the 10-month review, 54/72 (75 %) were discharged without further ENT intervention, and 18/72 (25 %) required additional ENT investigation. CONCLUSION: This study demonstrated that an audiology-led follow-up clinic for post-grommet insertion is a viable option, providing efficient, high-quality care. Two-thirds of paediatric patients did not require ENT input or review post-operatively. The results support interdisciplinary models of care, which could help address challenges faced by overburdened ENT services.
ABSTRACT
INTRODUCTION: Hearing loss is a major global public health issue that negatively impacts quality of life, communication, cognition, social participation, and mental health. The cochlear implant (CI) is the most efficacious treatment for severe-to-profound sensorineural hearing loss. However, variability in outcomes remains high among CI users. Our previous research demonstrated that the existing subjective methodology of CI programming does not consistently produce optimal stimulation for speech perception, thereby limiting the potential for CI users to derive the maximum device benefit to achieve their peak potential. We demonstrated the benefit of utilising the objective method of measuring auditory-evoked cortical responses to speech stimuli as a reliable tool to guide and verify CI programming and, in turn, significantly improve speech perception performance. The present study was designed to investigate the impact of patient- and device-specific factors on the application of acoustically-evoked cortical auditory-evoked potential (aCAEP) measures as an objective clinical tool to verify CI mapping in adult CI users with bilateral deafness (BD). METHODS: aCAEP responses were elicited using binaural peripheral auditory stimulation for four speech tokens (/m/, /g/, /t/, and /s/) and recorded by HEARLab™ software in adult BD CI users. Participants were classified into groups according to subjective or objective CI mapping procedures to elicit present aCAEP responses to all four speech tokens. The impact of patient- and device-specific factors on the presence of aCAEP responses and speech perception was investigated between participant groups. RESULTS: Participants were categorised based on the presence or absence of the P1-N1-P2 aCAEP response to speech tokens. Out of the total cohort of adult CI users (n = 132), 63 participants demonstrated present responses pre-optimisation, 37 participants exhibited present responses post-optimisation, and the remaining 32 participants either showed an absent response for at least one speech token post-optimisation or did not accept the optimised CI map adjustments. Overall, no significant correlation was shown between patient and device-specific factors and the presence of aCAEP responses or speech perception scores. CONCLUSION: This study reinforces that aCAEP measures offer an objective, non-invasive approach to verify CI mapping, irrespective of patient or device factors. These findings further our understanding of the importance of personalised CI rehabilitation through CI mapping to minimise the degree of speech perception variation post-CI and allow all CI users to achieve maximum device benefit.