Central auditory pathway pathologies (aka retrocochlear
Criteria for excluding potential subjects from this study were (1) cognitive, physical, or psychological inability to participate; (2) inability to provide reliable behavioral threshold responses (patient did not meet intrasession reliability of [+ or -]5 dB using the manual testing mode); and (3) subject or medical record report of Meniere's disease, retrocochlear
disorder, or active or recent history of middle ear disorder.
The overall results of such studies have demonstrated cochlear (64% of cases), vestibular (28%), retrocochlear
(4%), and external and middle ear (4%) disease involvement.
Hearing loss is categorised as conductive (CHL) or sensorineural (SNHL), with SNHL being further subdivided as cochlear or retrocochlear
This edition has expanded and updated coverage of disorders that cause dizziness, vertigo, and imbalance; extended review of specific disorders with information on retrocochlear
pathology and auditory asymmetry; a new chapter on fall prevention; updated pediatric and neurological perspectives; a section on the system used to develop values for procedural codes; new screening tools in the primary care setting; and updated appendices.
Topics include the basics and science behind the field of otoacoustic emissions; the anatomy, physiology, and molecular basis of cochlear function, studies of populations with normal hearing sensitivity; studies of clinical populations, including a new article of the influence of middle-ear function and pathology and otoacoustic emissions; distortion-product otoacoustic emissions in relation to hearing loss; audiometric outcomes across cochlear and retrocochlear
pathology; integrating measures as the basis for differential diagnostic applications; suppression of otoacoustic emissions in clinical and other populations; otoacoustic studies as indicators of noise-induced hearing loss; neonatal hearing screening and otoacoustic emission analysis in children.
Rollover is seen in retrocochlear
and/or central hearing problems and is manifested as a reduction in word discrimination ability as intensity is increased (Jerger & Hayes, 1977).
This combination of features makes the GSI AUDERA system one of the most comprehensive diagnostic systems available for the evaluation and diagnosis of cochlear and retrocochlear
In identifying the etiology of facial palsy secondary to retrocochlear
pathology or mass lesions of the middle ear, it may be useful to perform audiometric testing, including tympanometry and a determination of acoustic reflexes.
Covering the nose, paranasal sinuses, and face (including diagnostic evaluation and diseases), the oral cavity and pharynx (including the lips, esophagus and salivary glands), the ear (including audiology, retrocochlear
disorders, vestibular disorders and the lateral skull base), and the neck (including the larynx, trachea, and speech disorders) it includes extensive photographs, illustrations, MRIs, CTs and other visuals showing what students and professionals will likely encounter in clinical practice.
Hearing disorders in sickle cell disease: Cochlear and retrocochlear
Contraindications for use of the Esteem device include a history of postadolescent chronic middle ear infections, inner ear disorders, or recurring vertigo requiring treatment; disorders such as mastoiditis, hydrops, or Meniere disease/syndrome; a history of fluctuating air-conduction and/or bone-conduction hearing loss in the previous year; a history of otitis externa or eczema of the outer ear canal; cholesteatoma or destructive middle ear disease; retrocochlear
or central auditory disorders; disabling tinnitus; a history of keloid formation; hypersensitivity to silicone rubber, polyurethane, stainless steel, titanium, and/or gold; and a preexisting medical condition or ongoing treatment that might affect the healing process.