[Cochleovestibular nerve compression syndrome. A case report].
Cochleovestibular nerve compression syndrome is a term used to describe a group of audiovestibular symptoms produced by vascular compression of the cochleovestibular nerve. The most frequent abnormalities are sensorineural hearing loss, asymmetry of the wave I-III and III-V interval in the auditory brainstem response, and changes in electronystagmography. The clinical presentation varies and symptoms include recurrent vertigo, tinnitus, instability, and motion intolerance. A case is reported of cochleovestibular nerve compression syndrome in a 40-year-old woman with right ear hearing loss and occasional dizziness and tinnitus. Clinical exploration disclosed no relevant findings, but the auditory brainstem response showed an increase in the wave I-V interval. Contrasted magnetic resonance imaging identified a vascular loop near the cochleovestibular nerve. The differential diagnosis and treatment of this rare syndrome are discussed.
Pérez Garriges
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H
Servicio de ORL, Hospital Universitario La Fe, Valencia.
Rodrigo Chiner
O
O
Perolada Valmaña
J M
JM
Ibáñez Alcañiz
I
I
Morera Pérez
C
C
D000328:Adult; D001301:Audiometry, Pure-Tone; D003937:Diagnosis, Differential; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009408:Nerve Compression Syndromes / Q000150:complications / Q000175:diagnosis*; D014012:Tinnitus / Q000209:etiology; D014717:Vertigo / Q000209:etiology; D000159:Vestibulocochlear Nerve