Why do rotary tests still have a significance in vestibular diagnostics?
Answer
Rotary tests are a particularly efficient method of investigating vestibular function because:
They constitute a physiological stimulus (acts in pull-push on a pair of canals);
Provide a stimulus closer to natural stimulation frequencies than thermal tests;
Are independent of the anatomical structure of the temporal bone of each individual patient;
Calculate a fundamental parameter: the gain, or the ratio between the eye velocity (output) and the chair/head velocity (input);
They are the ideal tests for assessing the visuo-vestibular interaction;
Allow to evaluate the modulating action of the cerebellum through the step test (abrupt stop) which measures the decay and the maximum velocity of the post-rotatory nystagmus;
Monitor the evolution of compensation for unilateral peripheral vestibular deficits;
In the case of thermal areflexia (very low frequencies) and / or a low gain at V-HIT (high frequencies), they evaluate the functional efficiency of the vestibule at low and medium frequencies.
Enrico received his specialization in Medicine and Surgery from Padua University. He subsequently obtained an ENT specialization and another specialization in Audiology. He has over 25 years of experience working as an ENT specialist focused on surgery, especially in the neck area. His real passion is Otoneurology. For many years he has been interested in the functional evaluation of vertiginous patients. He has presented at various webinar and meetings both nationally and internationally.
He is the author of the book The Video Head Impulse Test – Theoretical and practical aspects and co-author of several journal articles and book chapters in national and international literature. He is engaged in performing diagnostic vestibular testing with all age ranges in various practice environments.
Related Courses
1https://www.audiologyonline.com/audiology-ceus/course/seminar-in-applied-probe-microphone-38492Seminar in Applied Probe Microphone MeasurementsThis seminar will cover the scientific principles behind probe microphone measurements as applied in hearing clinics. We will briefly discuss the theory and go through how the PMM are performed in the clinic. The course is designed for audiologists seeing adult patients for hearing device prescription. Basic knowledge of PMM will be helpful.auditory, textual, visual
This seminar will cover the scientific principles behind probe microphone measurements as applied in hearing clinics. We will briefly discuss the theory and go through how the PMM are performed in the clinic. The course is designed for audiologists seeing adult patients for hearing device prescription. Basic knowledge of PMM will be helpful.
2https://www.audiologyonline.com/audiology-ceus/course/selective-canal-impairment-on-video-38493Selective Canal Impairment on Video-HIT in Peripheral Vestibular DiseasesThe introduction of modern tools assessing otolith and ampullary reflexes in the high-frequency domain (VEMPs and video-HIT, respectively) has enabled a fast functional analysis of all inner ear receptors, offering new interpretations for end-organs and afferents abnormalities detected in patients with cochleo-vestibular pathologies. The literature review highlights how vestibular disorders could result in specific lesion patterns, including selective dysfunctions involving a single receptor. A series of patients with isolated impairment of a semicircular canal at the video-HIT will be presented and discussed. Each selective canal dysfunction will be correlated to the remaining clinical-instrumental data and related inner ear pathology. The underlying hypothetical pathomechanism accounting for each single scenario will be provided, with the help of pertinent bibliographic support.auditory, textual, visual
The introduction of modern tools assessing otolith and ampullary reflexes in the high-frequency domain (VEMPs and video-HIT, respectively) has enabled a fast functional analysis of all inner ear receptors, offering new interpretations for end-organs and afferents abnormalities detected in patients with cochleo-vestibular pathologies. The literature review highlights how vestibular disorders could result in specific lesion patterns, including selective dysfunctions involving a single receptor. A series of patients with isolated impairment of a semicircular canal at the video-HIT will be presented and discussed. Each selective canal dysfunction will be correlated to the remaining clinical-instrumental data and related inner ear pathology. The underlying hypothetical pathomechanism accounting for each single scenario will be provided, with the help of pertinent bibliographic support.
3https://www.audiologyonline.com/audiology-ceus/course/vestibular-and-balance-assessment-in-36958Vestibular and Balance Assessment in Children with Sensorineural Hearing Loss: An OverviewOver the past five years, we have seen a growing interest in studying vestibular disorders in children. The most commonly noteworthy are vestibular disorders in congenital sensorineural hearing loss (SNHL) and cochlear implants. Identifying and diagnosing vestibular and balance dysfunction in children is essential for their overall well-being. However, the diagnosis process is very demanding.This talk will provide an overview of vestibular and balance assessments in children with SNHL.auditory, textual, visual
Over the past five years, we have seen a growing interest in studying vestibular disorders in children. The most commonly noteworthy are vestibular disorders in congenital sensorineural hearing loss (SNHL) and cochlear implants. Identifying and diagnosing vestibular and balance dysfunction in children is essential for their overall well-being. However, the diagnosis process is very demanding.This talk will provide an overview of vestibular and balance assessments in children with SNHL.
4https://www.audiologyonline.com/audiology-ceus/course/symphonia-software-for-virtual-sound-37727Symphonia - the Software for Virtual Sound Environment CreationThis webinar reviews the Symphonia system, which enables hearing care professionals to simulate real-world listening scenes so that patients can experience the benefits of hearing aids and advanced hearing aid features. Symphonia provides 360° directional sound sources and allows the professional to change the angle and distance from which sounds are perceived by the patient in real-time.auditory, textual, visual
This webinar reviews the Symphonia system, which enables hearing care professionals to simulate real-world listening scenes so that patients can experience the benefits of hearing aids and advanced hearing aid features. Symphonia provides 360° directional sound sources and allows the professional to change the angle and distance from which sounds are perceived by the patient in real-time.
5https://www.audiologyonline.com/audiology-ceus/course/real-time-diagnostic-tele-audiology-37019Real-Time Diagnostic Tele-Audiology: The Future is Now!The need for real-time diagnostic tele-audiology solutions continues to grow as the demand for audiology services expands. This course discusses the benefits of tele-audiology, the opportunities for use and how Satellite by Inventis is uniquely positioned to deliver by providing tools that allow providers to interact and perform complete hearing assessments remotely in real-time.auditory, textual, visual
The need for real-time diagnostic tele-audiology solutions continues to grow as the demand for audiology services expands. This course discusses the benefits of tele-audiology, the opportunities for use and how Satellite by Inventis is uniquely positioned to deliver by providing tools that allow providers to interact and perform complete hearing assessments remotely in real-time.
