09-09, 15:00–16:00 (Europe/Istanbul), Equlibirium 1
Vestibular Assessment: new tools and developments to assess patients with balance problems
The CE-Chirp stimulus was developed to enhance cochlear neural synchrony and is widely used in auditory brainstem response assessment. Chirp stimuli include broadband, narrowband, and level-specific types based on intensity-dependent delay models, and their application has recently expanded to vestibular evoked myogenic potential (VEMP) testing. Although low-frequency tone-burst stimuli are traditionally preferred in cVEMP assessment, recent evidence suggests that narrowband and level-specific CE-Chirp stimuli may elicit larger and earlier cVEMP responses with improved reproducibility, particularly at low frequencies.
This study aims to evaluate whether chirp stimuli represent a viable alternative to conventional tone-burst stimuli.
(Global Bio, n=254)
Andy J Beynon is director of the Vestibular & Auditory Evoked Potential Lab at Radboud University Medical Center Nijmegen and co-founder of the Nijmegen Cochlear Implant (1986) and Bone-Anchored-Hearing-Aid Programs (1988).
In 1985, he developed the first auditory CI assessment for Dutch-language at ORL Research Lab (Antwerp University, Belgium). Specializing in Clinical Neurophysiology at Queens Medical Center (Nottingham, UK), he received his PhD degree at Medical Faculty Radboud University Nijmegen (NL) on Auditory Electrophysiology, electrically-evoked cognitive potentials in 2005, after which he set up a research AEP-Lab at the ORL Dept of Radboud University Medical Center and expanded his clinical and research activities to the establishment of a new Vestibular Lab in 2010, since then running both laboratories at Radboud UMC Nijmegen.
At the moment, he is a senior research audiologist-vestibulologist, member of university examination board and professor at Radboud University (Faculties Medicine & Biomedical Sciences, Linguistics, Cognitive Neurosciences), invited professor for (inter)national courses on auditory electrophysiology, visiting/guest professor (e.g. University Ghent Belgium, University Santiago de Chile, doctor honoris causa University Bucharest Romania Fac Medicine & Pharmacy), president of IERASG, peer reviewer for international scientific journals, member of examination, advisory boards, manuscript committees and PhD jury’s, co-chair/organizer 7th International Symposium Objective Measures Auditory Implants, scientific faculty member Barany Society, academic editor J Audiol Res, J ORL Hear Balance Medicine, (co)authored >75 articles and supervised >75 MD/MSc/MA/PhD theses on audio-vestibular sciences.
Special interests: speech processing, oto-genetic audio-vestibular research, animal & human auditory electrophysiology, cochlear and vestibular implants.
Researcher ID: L-4198-2015
Orcid: http://orcid.org/0000-0002-3191-6113
ResearchGate: https://www.researchgate.net/profile/andy_beynon
Dr. Gülin Gökçen Kesici graduated from Hacettepe University Faculty of Medicine in 2005 and completed her residency in Otorhinolaryngology at Ankara University in 2012. She holds both a Master’s and Ph.D. degree in Audiology, completed in 2022. In 2020, she received the title of Associate Professor. Her clinical and academic interests include otology, neurotology, pediatric otolaryngology, and vestibular and auditory diagnostics. She currently works as a faculty member and department head at Ankara Medipol University.
Associate Professor and Associate Chair for the Doctor of Audiology Program - Lamar University , TX. Ph.D in Health Sciences.
Superior semicircular canal dehiscence (SSCD) is a conductive pathology of inner ear origin. Otosclerosis is a metabolic disease of the otic capsule and results in progressive stapes fixation in the oval window.
The low-frequency conductive hearing loss observed in SSCD is similar to the audiologic features seen in otosclerosis. Therefore, differential diagnosis between otosclerosis and SSCD is important. There is an opening in the bony region at the apex of the superior semicircular canal. Vestibular dysfunction and auditory symptoms occur together (1).
In the differential diagnosis, while acoustic hearing reflexes are affected in otosclerosis, they are observed to be present in SSCD. The Vestibular evoked myogenic potentials (VEMPs) are important in the differential diagnosis of SSCD and otosclerosis. VEMPs are a neurophysiological assessment technique used to evaluate the vestibular functions of patients. VEMPs are classified as ocular VEMPs (oVEMPs) and cervical VEMPs (cVEMPs) based on the recording sites. In recent years, the use of the cVEMP test in auditory-vestibular evaluation has become increasingly widespread (2). While VEMP responses are obtained in conductive hearing pathologies originating from the inner ear, VEMP responses may not be obtained in conductive hearing pathologies originating from the middle ear. Therefore, VEMP responses cannot be obtained in otosclerosis, whereas VEMP thresholds may be determined to be lower than they should be in SSCD and enlarged vestibular aqueduct syndrome. Halmagyi et al. (3) reported that cVEMP responses could not be obtained when the air-bone gap was greater than 20 dB in pure tone audiometry. Bath et al. (4) reported that 97% of patients with conductive hearing loss did not have a cVEMP response.
Dr. Georgi Kukushev was born in 1983 in Sofia.
He graduated the Medical University of Sofia in December 2008.
In 2007, under the Erasmus program at the Charite Medical University in Berlin, Germany successfully passed the exams in internal medicine, surgery, and anesthesiology.
In 2009, he began working at the Ear, Nose, and Throat Clinic at the Military Medical Academy in Sofia.
One year of his specialization, he practiced at the military hospital in Ulm, Germany, under the supervision of Prof. H. Mayer. During this period, he acquired the right to work on the territory of Germany from the medical chamber in Stuttgart.
Since 2012, Dr. Georgi Kukushev has been a recognized specialist in Ear, Nose, and Throat.
In 2014, he obtained a teaching and scientific degree "Doctor" on the topic "Functional Endoscopic Septoplasty and Turbinoplasty - Comparative Studies with Conventional Surgical Techniques".
He is an active member of the German Society for Ear, Nose and Throat Diseases - Head and Neck Surgery.
In 2020, he was elected as a member of the working group of the Bulgarian Society for Ear, Nose and Throat Diseases in the field of "Rhinology, Functional and Aesthetic Surgery and Skull-Based Surgery".
He is fluent in written and spoken English and German.