Don´t miss this outstanding Online seminar:
- Ev
ent Title: Auditory Evoked Potentials: History, Classification, Methods, Clinical Application (Part I) - Lecturer:Professor George Tavartkiladze
- Organized by: Lehnhardt Foundation (PORA Webinar Series – Syllabus Audiology)
- Date & Time: Monday, November 9, 2026 | 15:00 CET
- Duration: Approximately 1 hour
- Format: Online Webinar via Zoom | Free Registration ZOOM
- Language: Delivered in English (with automatic real-time transcription and translation available)
Die von der Lehnhardt-Stiftung organisierte PORA-Webinarreihe lädt zu einer englischsprachigen Online-Veranstaltung mit automatischer Übersetzung ein, die am 9. November 2026 stattfindet. Als Hauptredner fungiert der international renommierte Professor George Tavartkiladze, der umfassend über die Geschichte, Klassifikation und Methodik von auditorisch evozierten Potentialen referiert. Das kostenlose, einstündige Seminar richtet sich vor allem an Mediziner, Audiologen und Therapeuten, um fundiertes Wissen über die klinische Diagnostik von Hörstörungen zu vermitteln. Die Teilnehmer erhalten nach einer gebührenfreien Zoom-Registrierung direkten Zugang zu diesem Fachvortrag, der praktische Einblicke in die Auswertung elektrophysiologischer Reaktionen bietet.
Executive Overview & Educational Objectives
Auditory Evoked Potentials (AEPs) serve as an essential electrophysiological method for evaluating the functional integrity of sensory and neural auditory pathways. Organized by the Lehnhardt Foundation as part of the international PORA educational series, this academic session presents a comprehensive analysis of the historical development, biophysical foundations, signal recording techniques, and diagnostic applications of early auditory evoked responses.
Participants will examine the neurophysiological mechanics underlying electrophysiological responses—from hair-cell depolarization to brainstem neural synchrony—and review the clinical protocols for Electrocochleography (ECochG) and Auditory Brainstem Responses (ABR) in objective threshold assessment, differential diagnosis, and patient management.
Academic Modules & Curriculum Outline
1. Physiological Foundations & Transduction Dynamics
- Cochlear Mechanics: Basilar membrane dynamics, stereocilia deflection, and hair-cell receptor potential generation through depolarization and hyperpolarization.
- Synaptic & Neural Transmission: Calcium-mediated neurotransmitter release at the hair-cell ribbon synapse and action potential propagation along the eighth cranial nerve.
2. AEP Classification & Signal Acquisition Methodology
- Response Taxonomy: Categorization by latency into short-latency (0–10 ms), middle-latency (10–50 ms), and long-latency (50–350 ms) potentials, as well as by physiological and anatomical origin.
- Instrumentation & Signal Enhancement: Principles of high-gain differential amplification (100,000× to 250,000×) and digital signal averaging to extract microvolt-level neural responses from background bioelectric noise.
- Stimulus & Polarity Selection: Evaluation of transient and sustained acoustic stimuli (clicks, tone bursts, chirps, speech) and the physiological effects of rarefaction, condensation, and alternating polarity on waveform latency and amplitude.
3. Electrocochleography (ECochG): Receptor & Early Neural Components
- Electrophysiological Components: Differentiation of the Cochlear Microphonic (CM; outer hair cell origin), Summating Potential (SP; inner hair cell origin), and Compound Action Potential (CAP; auditory nerve origin).
- Clinical Applications: Transtympanic vs. extratympanic electrode placements for evaluating endolymphatic hydrops in Ménière’s disease (SP/AP ratio and latency shifts), Auditory Neuropathy Spectrum Disorder (ANSD), and intracochlear ECochG monitoring during cochlear implantation.
4. Auditory Brainstem Responses (ABR) & Topical Diagnostics
- Anatomical Generators: Neural origins of Waves I through V spanning from the distal VIII nerve to sub-lemniscal brainstem structures.
- Quantitative Analysis: Diagnostic metrics including absolute peak latencies (Waves I, III, V), interpeak intervals (I–III, III–V, I–V), V/I amplitude ratios, and visual detection thresholds.
- Differential & Pediatric Diagnostics: Distinguishing conductive versus sensorineural hearing loss, evaluating retrocochlear pathology (such as acoustic neuromas), frequency-specific ABR (tone-burst, derived-band, maximum length sequences), and pediatric air/bone conduction protocols.
Featured Speaker
Prof. George A. Tavartkiladze
- Current Leadership: Founder of the National Research Center for Audiology and Hearing Rehabilitation (Moscow, Russia); Director of the Research Institute of Experimental and Clinical Audiology; Head of the Department of Clinical Audiology at the Russian Medical Academy for Continuing Professional Education.
- International Governance: Past President of the International Society of Audiology (ISA, 2006–2010), Past President of the Collegium Oto-Rhino-Laryngologicum Amicitiae Sacrum (CORLAS, 2006–2007), former Secretary General of the ISA (2012–2024), and President of the National Medical Association of Audiologists (Russia).
- Scientific Contributions: Globally recognized authority in auditory evoked potentials, universal newborn hearing screening, cochlear implant candidacy evaluation, and global hearing health policies.
Target Audience
This academic session is curated for healthcare professionals, clinical scientists, and researchers in audiology and otolaryngology, including:
- Clinical Audiologists & ENT Specialists
- Hearing Care Professionals & Hearing Aid Acousticians
- Auditory-Verbal Therapists & Speech-Language Pathologists
- Postgraduate Students & Researchers in Audiology & Otolaryngology
Registration Details
- Date: Monday, November 9, 2026
- Time: 15:00 CET
- Registration Fee: Free upon Free Registration ZOOM
- Platform: Zoom Webinar
- Host & Contact: Dr. Dr. h.c. Monika Lehnhardt-Goriany & the PORA Team (Lehnhardt Foundation)