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This sessions covers a wide range of topics related to the selection and fitting of hearing aids. Areas addressed extend also to the technical operation of hearing aid amplification parameters and components. In general, the session proceeds through five steps pertaining to the hearing aid fitting process covering identification of the candidate, measurements prior to selection, selection, verification and validation. The session addresses a number of specific points within each of the steps regarding specific patient assessments, patient characteristics, hearing aid amplification parameters, hearing aid measurements and outcome measurements. The depth of coverage will offer a session of novel information, but the breadth of coverage will allow for the discussion of many topic areas of interest to audiologists fitting hearing aids in a variety of clinical settings.

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A standard clinical immittance test battery includes measurements of the acoustic reflex, or more specifically, the middle ear muscle reflex (MEMR). The MEMR is the contraction of the stapedius muscle in response to high-level acoustic stimulation. Clinical MEMR measurements are made according to the American National Standards Institute standard for immittance instruments (S3.39–2012) by use of a 226-Hz probe tone in conjunction with a reflex-activating stimulus presented to the ipsilateral or contralateral ear. The MEMR is a bilateral response, which means that presenting the activator to one ear will elicit the response in both ears. In traditional clinical measurements, the reflex activator stimulus is a pure tone (500, 1000, 2000, or 4000 Hz) or a broadband noise, and the MEMR is measured at tympanometric peak pressure (TPP) as measured on the tympanogram. If the admittance of the test ear decreases by a criterion amount in the presence of the activator, for example, 0.02 to 0.03 mmho, the reflex is considered to be present. The lowest level at which an activator is presented and reliably elicits at least the criterion change in admittance is considered the MEMR threshold. The MEMR is typically present in ears with pure-tone behavioral thresholds of ≤60 dB HL at the activator frequencies (Gelfand 2009).

This session is developed by, and presenters invited by, Hearing, Balance, Tinnitus – Assessment and Intervention: Adult. This presentation will provide an overview of contemporary measures of vestibular function with a focus on advantages, limitations, and clinical usefulness. The implementation and outcome of a triage clinic for patients suspicious of benign paroxysmal positional vertigo will also be described.

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No description available.

No description available.