The clinical concepts of electronystagmography (ENG) and vestibular testing are simple. They are not mysterious, complicated, nor time consuming. Every patient afflicted with dizziness deserves such a recording as part of the vestibular workup. No one would consider the evaluation of a patient with a hearing loss complete without an audiogram, and in 1975 no patient with a complaint of dysequilibrium has been properly or sufficiently evaluated without an ENG recording of balance function.

Electronystagmography↗

PubMedDate not supplied

Sinusoidal harmonic acceleration test in clinical practice.

The author's experience during the first year of use of the Sinusoidal Harmonic Acceleration test in clinical practice is presented. The advantages of this test both in the diagnostic and monitoring areas are illustrated with patient evaluation summaries. Further, use of this test on a daily basis in the office practice of neurotology will define its role in the evolution and follow-up of neurotologic problems.

Adult↗

PubMedDate not supplied

Harmonic acceleration tests as a measure of vestibular compensation.

The material presented in excerpted from patient evaluations. The study was performed with the use of the Contraves rotary chair. This testing modality was used at each patient visit. All other conventional auditory and ENG tests were also performed. These patients have been selected to illustrate the value of the harmonic acceleration (HA) test as a modality for monitoring patient progress. The HA graphs produced were a result of the presence or absence of central vestibular compensation. The findings on these investigations further confirm that HA test provide an objective monitor for vestibular abnormality.

Adult↗

PubMedDate not supplied

Degenerative changes in the human vestibular sensory epithelia.

A study of the vestibular end organs from humans of different ages is presented. The inner ears were exposed by microdissection, and the vestibular sensory regions were either sectioned and studied with light or electron microscopy, or prepared and studied with the surface specimen technique. A change, which can be related to aging, is the accumulation of lipofuscin inclusions in sensory and supporting cells, especially pronounced in the type I sensory cell. Changes of the hair bundles, such as disarrangement of cilia, increased fragility of cilia and formation of giant cilia, have also been observed in aged individuals. In three cases there was a history of vestibular disturbance of vertigo. All three cases had shown caloric hypo-reactivity. In two cases, one with a history of herpes zoster oticus and another with a brain stem glioma, no morphological changes which could be attributed to the diseases, were found. The third case showed degeneration of macula utriculi and the lateral and superior cristae, possibly as a result of vascular disturbance.

Adolescent↗