Neurovascular Compression Syndrome of the Eighth Cranial Nerve: Myth or Reality
| Autor: | J. Vathilakis, E. Chalidia, M. Paxinos, M. Charalabopoulou, A. Vafiadis |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Vestibular system
medicine.medical_specialty biology Decompression business.industry Hearing loss Hyperacusis Audiology biology.organism_classification Vertigo mental disorders Neurovascular compression otorhinolaryngologic diseases medicine sense organs Neurology (clinical) medicine.symptom business Eighth cranial nerve Tinnitus |
| Zdroj: | Skull Base. 19 |
| ISSN: | 1532-0065 1531-5010 |
| DOI: | 10.1055/s-2009-1224488 |
| Popis: | Background and Aim: There is evidence that NCS of the eighth cranial nerve can cause a paroxysmal and persistent vertigo syndrome with or without tinnitus and hearing loss. In 1984, Jannetta et al introduced the term “disabling positional vertigo” for this situation and reported successful treatment by vascular decompression techniques. Brandt and Dieterich (1990) proposed that the term “vestibular paroxysmal” be used instead and suggested four characteristic features of the syndrome: (1) short attacks of rotational to-and-fro vertigo lasting seconds to minutes, (2) attacks frequently dependent on particular head positions and modification of the duration of the attack by changing head position (“disabling positional vertigo”), (3) hyperacusis or tinnitus permanently or during the attack, and (4) measurable auditory or vestibular deficits by neurophysiological methods. A lot of controversy exists in the literature about the diagnosis of the NCS, and the evolution in MRI and MRA techniques have elucidated the cases. Case Report: We report on a case of NCS in a 30-year-old woman who experienced short attacks of rotational vertigo combined with head movements. Full neurotological evaluation showed no measurable deficits, and MRI revealed a vascular loop of the AICA going deeply against the fundus of the eighth cranial nerve. Conclusions: It seems that although it is relatively rare and there is still no unanimous opinion in the literature about the pathogenesis and the diagnosis of the syndrome, NCS cannot be underestimated as a cause of vestibular disorders. |
| Databáze: | OpenAIRE |
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