09-10, 08:30–09:00 (Europe/Istanbul), Equilibrium 2
Description: Hormonal fluctuations significantly impact vestibular function across different life stages in women. This session explores how vestibular function is affected during menarche, pregnancy, and menopause, highlighting diagnostic insights using vHIT SHIMP, saccadometry, and ocular counter-roll (OCR). We will discuss how estrogen and progesterone influence vestibular pathways, leading to dizziness and balance dysfunctions. Attendees will gain practical knowledge on identifying vestibular disorders linked to hormonal changes and optimizing diagnostic accuracy using advanced vestibular assessments.
Outcome Objectives: By the end of this session, attendees will be able to:
Analyze the effects of hormonal fluctuations on vestibular function during menarche, pregnancy, and menopause.
Compare vHIT SHIMP, saccadometry, and OCR findings across these three hormonal stages.
Interpret vestibular test results to differentiate between peripheral and central dysfunctions in hormonally influenced dizziness.
Implement clinical strategies for assessing vestibular disorders in women experiencing hormonal transitions.
Structure of the Session (30 min):
Introduction (5 min): Overview of hormonal influences on the vestibular system.
Menarche & Vestibular Function (7 min): Early hormonal changes and their impact on balance.
Pregnancy & Vestibular Adaptations (7 min): Hemodynamic and vestibular changes in gestation.
Menopause & Vestibular Decline (7 min): Estrogen depletion and balance dysfunction.
Conclusion (4 min): Summary and final considerations.
Background & References:
MacDougall HG, McGarvie LA, Halmagyi GM, Rogers SJ, Manzari L, Burgess AM, Curthoys IS, Weber KP. A new saccadic indicator of peripheral vestibular function based on the video head impulse test. Neurology. 2016 Jul 26;87(4):410-8. doi: 10.1212/WNL.0000000000002827
Demian D, Petrak M, Zielinski G, Massingale S, Alexander A, Fuemmeler L, Lin CC. Clinical Saccadometry: Establishing Evaluative Standards Using a Simplified Video Oculography Protocol in the Adult Population. J Am Acad Audiol. 2023 Feb;34(1-02):19-27. doi: 10.1055/s-0043-1772582.
Castillo-Bustamante M, Del Cid Chua C, Vázquez M, Bello Dotel L, Baez Recalde M. Hormonas sexuales y alteraciones neurotológicas en Mujeres [Estrogen and neurotological diders in womenSexual hormones and neurotological disorders in women]. Rev Fac Cien Med Univ Nac Cordoba. 2020 Dec 19;77(4):351-355. Spanish. doi: 10.31053/1853.0605.v77.n4.29349
Castillo-Bustamante M, Çelebisoy N, Echavarria LG, Franco I, Valencia S, Gonzalez S, García A. Balance in Transition: Unraveling the Link Between Menopause and Vertigo. Cureus. 2024 Apr 29;16(4):e59277. doi: 10.7759/cureus.59277 Feng MY, Gu HH, Tian Q, Yang HL, Zhuang JH. Molecular Mediators of Estrogen Reduction-induced Otolith Shedding. Curr Med Sci. 2021 Aug;41(4):667-672. doi: 10.1007/s11596-021-2421-3
The purpose of your proposal is to analyze how hormonal fluctuations affect vestibular function across different life stages in women (menarche, pregnancy, and menopause). Using advanced assessment tools such as vHIT SHIMP, saccadometry, and ocular counter-roll (OCR), this session will explore vestibular changes associated with these hormonal transitions and their impact on balance and dizziness. Attendees will gain a deeper understanding of the influence of estrogen and progesterone on vestibular pathways, differentiate between peripheral and central dysfunctions, and optimize clinical diagnosis in women experiencing hormone-related vestibular disorders.
Melissa Castillo Bustamante is a physician and surgeon from the Universidad Pontificia Bolivariana (Colombia) and an otolaryngologist from the Pontificia Universidad Católica Argentina (Argentina). She completed a fellowship in otopathology at the Massachusetts Eye and Ear Infirmary – Harvard Medical School. Dr. Castillo Bustamante has specialized training in otoneurology and balance disorders in both Argentina and the United States.
She currently serves as an assistant professor at Clínica Universitaria Bolivariana and a faculty lecturer at Universidad Pontificia Bolivariana, where she is also an active researcher and leads the otolaryngology research division. With over 80 publications in her research career, she has 24 indexed in PubMed.
Dr. Castillo Bustamante is also a reviewer for international journals such as PLOS ONE, The Laryngoscope, Annals of Otology, Rhinology & Laryngology, and Frontiers in Neurology. She is the editor of Acta de Otorrinolaringología, the official journal of the Colombian Association of Otolaryngology and Head and Neck Surgery, where she also serves on the board of directors. Additionally, she is a fellow of the Aspen Institute Colombia.
As an international speaker, she has participated in congresses and courses in the United States, Ecuador, Peru, Brazil, Colombia, Costa Rica, Mexico, Puerto Rico, Belgium, and Hungary.
Dr. Castillo Bustamante is the first Colombian member of the Bárány Society, the American Neurotology Society, the Schuknecht Society, and the Association for Research in Otolaryngology.