Background And Objectives: Inner ear symptoms like hearing loss, dizziness or tinnitus are often developed after head trauma, even in cases without inner ear destruction. This is also known as labyrinthine concussion. The purpose of this study is to determine the clinical manifestations, characteristics of audiometry and prognostic factors of these patients.
Materials And Methods: We reviewed the medical records of the 40 patients that had been diagnosed as labyrinthine concussion from 1996 to 2007. We studied the hearing levels in each frequency and classified them according to type and degree of hearing loss. Rates of hearing improvement were evaluated according to age, sex, hearing loss type, degree and presence of dizziness or tinnitus. To find out any correlation between hearing improvement and these factors, we used χ(2) test or Fisher's exact test.
Results: Bilateral hearing loss was observed in 22 patients, and unilateral hearing loss in 18 patients. There were 4 (6.5%) ascending, 34 (54.8%) descending, 24 (38.7%) flat type hearing loss, which indicated hearing loss was greater in high frequencies than low frequencies. Among 62 affected ears, 20 (32.3%) gained improvement, and it was achieved mainly in low frequencies. There were only 2 ears with dizziness in 20 improved ears and among 20 dizziness accompanied ears, also only 2 ears were improved.
Conclusions: High frequencies are more vulnerable to trauma than low frequencies. The hearing gain is obtained mainly in low frequencies, and association with dizziness serves poor prognosis.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936518 | PMC |
| http://dx.doi.org/10.7874/kja.2013.17.1.13 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Self-Perception of Voice at Different Moments and Hospitalization for COVID-19: The Influence of Sociodemographic and Clinical Variables.
J Voice
January 2025
Department of Speech Therapy, Physiotherapy and Occupational Therapy, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, São Paulo, São Paulo, Brazil. Electronic address:
Purpose: This study aimed to compare the self-perception of voice at different times and the influence of age, number of infections, underlying diseases, and occupational voice use among individuals with Coronavirus Disease 2019 (COVID-19), with or without a history of hospitalization.
Methods: Data were collected from adults and older adults with COVID-19, treated at a Brazilian Military Hospital between April 2020 and May 2023. The questionnaire was sent by email and a messaging application.
Learning About Classroom Accessibility From a Student-Instructor Partnership.
Health Promot Pract
January 2025
Colorado School of Public Health, Aurora, CO, USA.
In this commentary, we, a recent Master of Public Health (MPH) graduate with hearing loss and a course instructor, share what we learned about classroom accessibility while participating in a semester-long qualitative research methods course offered during the COVID-19 pandemic. We complement our reflections on working together with findings from a student field project focused on the lived classroom experiences of graduate students with hearing loss. The field project revealed that students adapted to increased communication challenges in their learning environments without requesting official accommodations due to stigma and a desire to limit their burden on others.
View Article and Find Full Text PDFRetinal Phenotypes and Single-cell Sequencing Analysis of Ush2a Knockout Mice.
Exp Eye Res
January 2025
Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, 518040 Guangdong, China. Electronic address:
Usher syndrome is a rare autosomal recessive genetic disorder that primarily affects both vision and hearing, manifesting as sensorineural hearing loss and progressive vision loss caused by retinitis pigmentosa. The pathogenesis of retinal degeneration in Usher syndrome is still largely unknown. In this study, a novel Ush2a knockout mouse model was successfully constructed using CRISPR/Cas9 technology.
View Article and Find Full Text PDFHair cells (HCs) are essential for vestibular function, and irreversible damage to vestibular HCs in mammals is closely associated with vertigo. The stimulation of HC regeneration through exogenous gene delivery represents an ideal therapeutic approach for restoring vestibular function. Overexpression of Atoh1, Pou4f3, and Gfi1 (collectively referred to as APG) has demonstrated efficacy in promoting HC regeneration in the cochlea.
View Article and Find Full Text PDFCasz1 is required for both inner hair cell fate stabilization and outer hair cell survival.
Science
January 2025
Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.
Cochlear inner hair cells (IHCs) and outer hair cells (OHCs) require different transcription factors for their cell fate stabilization and survival, suggesting separate mechanisms are involved. Here, we found that the transcription factor Casz1 was crucial for early IHC fate consolidation and for OHC survival during mouse development. Loss of Casz1 resulted in transdifferentiation of IHCs into OHCs, without affecting OHC production.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!