Last month, we discussed the acute medical management of vestibular neuritis. This month, we will review potential outcomes and expand on the long-term management of vestibular neuritis.
Recovery and Long-Term Outcomes
There are two general outcomes after vestibular neuritis: a person may recover completely, or they may be left with some degree of permanent dysfunction at the level of the inner ear. Exact data can be difficult to determine, but available evidence suggests that roughly half of patients recover without significant lasting effects, while the other half experience residual symptoms and/or measurable deficits on vestibular testing.
Recovery following vestibular neuritis can be slow, often taking weeks to months for symptoms to gradually improve. Current data suggest that most recovery occurs within the first few months after the acute episode. As expected, individuals with greater degrees of residual vestibular dysfunction are more likely to experience ongoing symptoms such as motion-provoked dizziness or disorientation, balance difficulty, mental fog, and related complaints.
Vestibular Compensation and Rehabilitation
The brain can adapt to a vestibular deficit and reduce ongoing motion-provoked dizziness and imbalance through a process called vestibular compensation. Vestibular compensation is essentially the brain recalibrating itself to the new amount of information it receives from the inner ear structures.
This compensation process is supported through physical activity. Repeated head and body movement helps signal to the brain that an inner ear deficit is present and that adaptation is needed. Specific exercise-based protocols, known as vestibular rehabilitation, are designed to promote this process. Vestibular rehabilitation is recommended for patients with peripheral vestibular deficits and is known to aid compensation.
Compensation can take weeks to months after the inner ear is injured. It is also important to note that being well compensated for a vestibular deficit does not always mean a complete absence of symptoms.
The goal of compensation is to minimize dizziness and imbalance, but some individuals with significant inner ear damage may continue to experience brief head-motion-provoked dizziness and/or balance difficulty.
Decompensation and Ongoing Management
One topic that is not discussed often enough with patients is that compensation status can fluctuate. Anything that impairs brain function or changes inner ear function can adversely affect vestibular compensation. Periods when the brain’s vestibular compensation or calibration is less effective are referred to as decompensation.
Common triggers for decompensation include poor sleep, stress, illness, migraine, and common inner ear conditions such as benign paroxysmal positional vertigo (BPPV). Managing these contributing factors is important for maximizing compensation and minimizing ongoing dizziness and imbalance.
Even when someone is well compensated for an inner ear deficit, some degree of ongoing physical activity is helpful for maintaining that compensation status. It is similar to an exercise program: a person cannot work out for a short period of time and expect to maintain that level of physical fitness without continued activity. In the same way, the vestibular system benefits from ongoing movement and activity to help preserve compensation over time.
References
- Adamec, I., Krbot Skorić, M., Ozretić, D., & Habek, M. (2014). Predictors of development of chronic vestibular insufficiency after vestibular neuritis. Journal of the Neurological Sciences, 347(1–2), 224–228. https://doi.org/10.1016/j.jns.2014.10.001
- Arshad, Q., Cousins, S., Golding, J. F., & Bronstein, A. M. (2023). Factors influencing clinical outcome in vestibular neuritis—A focussed review and reanalysis of prospective data. Journal of the Neurological Sciences, 446, 120579. https://doi.org/10.1016/j.jns.2023.120579
- Bartolomeo, M., Biboulet, R., Pierre, G., Mondain, M., Uziel, A., & Venail, F. (2014). Value of the video head impulse test in assessing vestibular deficits following vestibular neuritis. European Archives of Oto-Rhino-Laryngology, 271(4), 681–688. https://doi.org/10.1007/s00405-013-2451-y
- Bronstein, A. M., & Dieterich, M. (2019). Long-term clinical outcome in vestibular neuritis. Current Opinion in Neurology, 32(1), 174–180. https://doi.org/10.1097/WCO.0000000000000652
- Cousins, S., Cutfield, N. J., Kaski, D., Palla, A., Seemungal, B. M., Golding, J. F., Staab, J. P., & Bronstein, A. M. (2014). Visual dependency and dizziness after vestibular neuritis. PLOS ONE, 9(9), e105426. https://doi.org/10.1371/journal.pone.0105426
- Esteban-Sanchez, J., & Martin-Sanz, E. (2022). Long-term evolution of vestibular compensation, postural control, and perceived disability in a population of patients with vestibular neuritis. Journal of Clinical Medicine, 11(14), 3941. https://doi.org/10.3390/jcm11143941
- Hall, C. D., Herdman, S. J., Whitney, S. L., Anson, E. R., Carender, W. J., Hoppes, C. W., Cass, S. P., Christy, J. B., Cohen, H. S., Fife, T. D., Furman, J. M., Shepard, N. T., Clendaniel, R. A., Dishman, J. D., Goebel, J. A., Meldrum, D., Ryan, C., Wallace, R. L., & Woodward, N. J. (2022). Vestibular rehabilitation for peripheral vestibular hypofunction: An updated clinical practice guideline from the Academy of Neurologic Physical Therapy of the American Physical Therapy Association. Journal of Neurologic Physical Therapy, 46(2), 118–177. https://doi.org/10.1097/NPT.0000000000000382
- McGarvie, L. A., MacDougall, H. G., Curthoys, I. S., & Halmagyi, G. M. (2020). Spontaneous recovery of the vestibulo-ocular reflex after vestibular neuritis; long-term monitoring with the video head impulse test in a single patient. Frontiers in Neurology, 11, 732. https://doi.org/10.3389/fneur.2020.00732
- Psillas, G., Petrou, I., Printza, A., Sfakianaki, I., Binos, P., Anastasiadou, S., & Constantinidis, J. (2022). Video head impulse test (vHIT): Value of gain and refixation saccades in unilateral vestibular neuritis. Journal of Clinical Medicine, 11(12), 3467. https://doi.org/10.3390/jcm11123467
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- Strupp, M., Zingler, V. C., Arbusow, V., Niklas, D., Maag, K. P., Dieterich, M., Bense, S., Theil, D., Jahn, K., & Brandt, T. (2004). Methylprednisolone, valacyclovir, or the combination for vestibular neuritis. New England Journal of Medicine, 351(4), 354–361. https://doi.org/10.1056/NEJMoa033280







