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Background: Delayed endolymphatic hydrops (DEH) is an inner ear disease that causes recurrent vertigo in the ipsilateral ear or fluctuating hearing in the contralateral ear due to endolymphatic hydrops secondary to preceding deafness. There are few reports of large, multicentre studies investigating the clinical-epidemiological characteristics of DEH.
Objective: This study aimed to clarify the characteristics of DEH in Japan.
Methods: Clinical data on 662 patients with DEH were analysed by nationwide, multicentre surveys conducted by the Peripheral Vestibular Disorders Research Group of Japan.
Results: The proportion of ipsilateral DEH (IDEH) was slightly higher than that of contralateral DEH (CDEH) at 55.4%. The time delay between onset of precedent deafness and onset of DEH was significantly longer for CDEH than for IDEH. The most common cause of precedent deafness was a disease of unknown cause with onset in early childhood (33.1%). Epidemiological characteristics were not significantly different between CDEH with and without vertigo.
Conclusion: DEH appearing to be caused by viral labyrinthitis has a high rate of onset within 40 years of precedent deafness. Clinical and epidemiological characteristics of IDEH, CDEH with vertigo, and CDEH without vertigo were very similar.
Significance: The clinical-epidemiological characteristics of DEH in Japan were clarified.
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http://dx.doi.org/10.1080/00016489.2022.2108141 | DOI Listing |
J Neuroimmunol
September 2025
Department of Otorhinolaryngology Head and Neck Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Vertigo Diagnosis and Treatment Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China. Electronic address:
Background: Ménière's disease (MD) remains a heterogeneous disorder with unclear pathogenesis. While immune dysregulation has been implicated, the specific role of CD4+ T cell subsets and their clinical correlations in MD are poorly understood.
Methods: We performed comprehensive immune profiling of 30 MD patients and 27 healthy controls using flow cytometry to analyze six CD4+ T cell subsets (Th1, Th2, Th17, Treg, TGF-β+, TNF-α+) and multiplex cytokine analysis of 16 inflammatory mediators plus IgE.
Eur J Radiol
August 2025
Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China. Electronic address:
Objective: To establish objective criteria for grading vestibular endolymphatic hydrops (EH) in Meniere's disease (MD) using 3D-real IR MRI, and investigate its clinical correlations.
Methods: Retrospective analysis of 155 MD patients (189 ears) included clinical data, audiovestibular assessments, and gadolinium-enhanced MRI. Vestibule volume (VV) and the volume of vestibular endolymph (EndV) were outlined on 3D-real IR sequence images, and the volume of vestibular endolymph was calculated by the vestibular endolymphatic ratio (ELR) to evaluate the degree of EH, analyze the correlation between the degree of EH and specific clinical features, hearing and vestibular function, and determine the optimal ELR value to differentiate each degree of effusion by using receiver operating characteristic (ROC) curve analysis.
Eur Arch Otorhinolaryngol
September 2025
Department of Otorhinolaryngology-Head and Neck Surgery, Dankook University College of Medicine, Dankook University Hospital, Cheonan-si, Republic of Korea.
Background: Acute low-tone sensorineural hearing loss (ALHL) is frequently associated with endolymphatic hydrops. Cervical vestibular-evoked myogenic potentials (cVEMP) have been used to detect saccular hydrops, especially in Meniere's disease, but their role in ALHL is unclear.
Objective: To preliminarily investigate whether cVEMP tuning frequency shifts are associated with hearing outcomes in patients with ALHL.
Comput Biol Med
September 2025
Division of Computer Science and Artificial Intelligence, Jeonbuk National University, Jeonju, Republic of Korea; Center for Advanced Image and Information Technology (CAIIT), Jeonbuk National University, Jeonju, Republic of Korea. Electronic address:
The identification of endolymphatic hydrops (EH) using magnetic resonance imaging (MRI) is crucial for understanding inner ear disorders such as Meniere's disease and sudden low-frequency hearing loss. The EH ratio is calculated as the ratio of the endolymphatic fluid space to the perilymphatic fluid space. We propose a novel cross-channel feature transfer (CCFT) 3D U-Net for fully automated segmentation of the perilymphatic and endolymphatic fluid spaces in hydrops MRI.
View Article and Find Full Text PDFEur Arch Otorhinolaryngol
August 2025
ENT institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, China.
Objectives: Drop attack (DA) is a specific symptom of Meniere's diset the risk factors affecting DAs remain uncertain. This study aimed to identify clinical and imaging predictors of DAs in MD patients .
Methods: A hospital-based cross-sectional survey was conducted between October 2014 and December 2022 at a tertiary center in shanghai, China.