Vascular loop as a cause of vertigo.
A vascular loop in the internal auditory canal pressing upon the vestibular nerve was found in a series of eight patients with episodic vertigo and severe motion intolerance. All patients had failed medical and surgical therapy for vestibular Meniere's disease, which this syndrome closely mimics. A vestibular nerve resection or section medial to the vascular loop produced relief of symptoms in all patients, but one patient required a second operation. We have no test or study to reliably diagnose this syndrome preoperatively. The history appears to be the best indicator to date.
D000368:Aged; D002536:Cerebral Arteries / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009039:Motion Perception / Q000502:physiology; D009408:Nerve Compression Syndromes / Q000209:etiology / Q000601:surgery; D014717:Vertigo / Q000209:etiology*; D014725:Vestibular Nerve / Q000601:surgery