{"title":"Relationship between autonomic nervous system function and endolymphatic space ratio in Ménière disease","authors":"Keita Ueda , Tomoyuki Shiozaki , Hiroshi Inui , Tsuyoshi Sakamoto , Tadashi Kitahara","doi":"10.1016/j.anl.2025.06.002","DOIUrl":null,"url":null,"abstract":"<div><h3>Objectives</h3><div>Autonomic dysfunction is associated with Ménière disease (MD) and benign paroxysmal positional vertigo (BPPV). Because the autonomic nervous system regulates blood pressure (BP) and heart rate (HR) during positional changes, these changes can be used to assess autonomic nervous system function. We aimed to evaluate the relationship between MD/BPPV and autonomic nervous system function based on BP, HR, and endolymphatic space (ELS) ratio measurements, and to examine the differences between the two diseases.</div></div><div><h3>Methods</h3><div>This retrospective study included 168 patients who underwent inner ear magnetic resonance imaging (MRI), Schellong test (S-test), and HR measurements and were diagnosed with MD (<em>n</em> = 103) or BPPV (<em>n</em> = 65) between August 2014 and January 2024. The ELS ratios of the entire inner ear, cochlea, vestibule, and semicircular canals were calculated using MRI. The ranges of BP and HR changes during position changes were calculated and related to each ELS ratio.</div></div><div><h3>Results</h3><div>Forty (38.8 %) patients with MD had a positive S-test result, which was significantly higher than the number of patients with BPPV who had a positive S-test result (<em>n</em> = 15, 23.1 %) (<em>P</em> = 0.0427, Fisher’s exact test). A trend toward a significant increase in the cochlear ELS ratio with decreasing systolic BP was observed in patients with MD with a positive S-test (Spearman’s test, <em>r</em>=−0.346, <em>P</em> = 0.0287). No significant differences were observed between the other combination groups.</div></div><div><h3>Conclusion</h3><div>Autonomic nervous system function may influence the onset of MD more than BPPV, furthermore, MD patients with S-test positive, a weak correlation was observed between an increased ELS ratio in the cochlear and a decrease in systolic BP.</div></div>","PeriodicalId":55627,"journal":{"name":"Auris Nasus Larynx","volume":"52 4","pages":"Pages 404-411"},"PeriodicalIF":1.5000,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Auris Nasus Larynx","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0385814625000914","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OTORHINOLARYNGOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives
Autonomic dysfunction is associated with Ménière disease (MD) and benign paroxysmal positional vertigo (BPPV). Because the autonomic nervous system regulates blood pressure (BP) and heart rate (HR) during positional changes, these changes can be used to assess autonomic nervous system function. We aimed to evaluate the relationship between MD/BPPV and autonomic nervous system function based on BP, HR, and endolymphatic space (ELS) ratio measurements, and to examine the differences between the two diseases.
Methods
This retrospective study included 168 patients who underwent inner ear magnetic resonance imaging (MRI), Schellong test (S-test), and HR measurements and were diagnosed with MD (n = 103) or BPPV (n = 65) between August 2014 and January 2024. The ELS ratios of the entire inner ear, cochlea, vestibule, and semicircular canals were calculated using MRI. The ranges of BP and HR changes during position changes were calculated and related to each ELS ratio.
Results
Forty (38.8 %) patients with MD had a positive S-test result, which was significantly higher than the number of patients with BPPV who had a positive S-test result (n = 15, 23.1 %) (P = 0.0427, Fisher’s exact test). A trend toward a significant increase in the cochlear ELS ratio with decreasing systolic BP was observed in patients with MD with a positive S-test (Spearman’s test, r=−0.346, P = 0.0287). No significant differences were observed between the other combination groups.
Conclusion
Autonomic nervous system function may influence the onset of MD more than BPPV, furthermore, MD patients with S-test positive, a weak correlation was observed between an increased ELS ratio in the cochlear and a decrease in systolic BP.
期刊介绍:
The international journal Auris Nasus Larynx provides the opportunity for rapid, carefully reviewed publications concerning the fundamental and clinical aspects of otorhinolaryngology and related fields. This includes otology, neurotology, bronchoesophagology, laryngology, rhinology, allergology, head and neck medicine and oncologic surgery, maxillofacial and plastic surgery, audiology, speech science.
Original papers, short communications and original case reports can be submitted. Reviews on recent developments are invited regularly and Letters to the Editor commenting on papers or any aspect of Auris Nasus Larynx are welcomed.
Founded in 1973 and previously published by the Society for Promotion of International Otorhinolaryngology, the journal is now the official English-language journal of the Oto-Rhino-Laryngological Society of Japan, Inc. The aim of its new international Editorial Board is to make Auris Nasus Larynx an international forum for high quality research and clinical sciences.