title: Selective otolith dysfunctions objectively verified.
abstract: Vertigo and vigorous horizontal spontaneous nystagmus in a presenting patient is usually taken to indicate unilaterally reduced horizontal canal function. However here we report results which question that presumption. In three such patients with an acute vestibular syndrome, complete testing of all peripheral vestibular sense organs using new tests of canal and otolith function (vHIT and VEMPs) showed that semicircular canal function was normal, but that there were unilateral otolithic deficits which probably caused their acute syndrome.
authors.affiliation: MSA ENT Academy Center, Cassino, Frosinone, Italy.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Manzari
authors.affiliation: Vestibular Research Laboratory, School of Psychology, the University of Sydney, Sydney, NSW, Australia.
authors.forename: Hamish G
authors.initials: HG
authors.lastname: MacDougall
authors.affiliation: Vestibular Research Laboratory, School of Psychology, the University of Sydney, Sydney, NSW, Australia.
authors.forename: Ann M
authors.initials: AM
authors.lastname: Burgess
authors.affiliation: Vestibular Research Laboratory, School of Psychology, the University of Sydney, Sydney, NSW, Australia.
authors.forename: Ian S
authors.initials: IS
authors.lastname: Curthoys
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D009759:Nystagmus, Pathologic / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D010037:Otolithic Membrane / Q000503:physiopathology*; D012665:Semicircular Canals / Q000503:physiopathology; D014717:Vertigo / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology; D015837:Vestibular Diseases / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology*; D058585:Vestibular Evoked Myogenic Potentials; D014724:Vestibular Function Tests
keywords: Vestibular; cervical vestibular-evoked myogenic potential; ocular vestibular-evoked myogenic potential; otolith; utricular