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A Mouse Model of Single and Repetitive Mild Traumatic Brain Injury
Published on: June 20, 2017
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Vestibular system dysfunction in patients after mild traumatic brain injury
Wojciech Skóra1, Ramzes Stańczyk2, Anna Pajor2
1Otolaryngology Department, S. Rybicki Memorial Regional Hospital in Skierniewice, Poland. wojciech.skora@centrumlaryngologii.pl.
Annals of Agricultural and Environmental Medicine : AAEM
|December 28, 2018
Summary
Mild traumatic brain injury (MTBI) can cause vestibular dysfunction, with symptoms improving over six months. However, central vestibular system issues often persist, indicated by abnormal videonystagmography (VNG) results.
Area of Science:
- Neurology
- Otolaryngology
- Vestibular System Disorders
Background:
- Discrepancies exist regarding the prevalence and type of vestibular dysfunction following mild traumatic brain injury (MTBI).
- Vertigo, disequilibrium, and balance instability are common complaints in MTBI patients.
Purpose of the Study:
- To evaluate the specific types of vestibular system dysfunction in MTBI patients.
- To track changes in vestibular function and subjective symptoms over a 6-month period post-injury.
Main Methods:
- Prospective analysis of 50 MTBI patients with abnormal videonystagmography (VNG) results.
- Utilized anamnesis, otoneurological examination, Dizziness Handicap Inventory (DHI), and VNG at baseline and 6-month follow-up.
Main Results:
- Significant improvement in DHI scores (9.8 points, p<0.001) after 6 months.
- At baseline, VNG revealed peripheral (38%), central (40%), and mixed (44%) vestibular dysfunctions.
- VNG normalization occurred in 38% of patients, with improvement more frequent in peripheral disorders (p<0.001).
Conclusions:
- Vestibular dysfunction, affecting peripheral, central, and mixed systems, is present in approximately one-fourth of MTBI patients.
- Subjective symptoms and vestibular dysfunction significantly decrease after 6 months.
- Over half of MTBI patients exhibit persistent abnormal VNG results, suggesting ongoing central vestibular system dysfunction.
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