title: Insights into horizontal canal benign paroxysmal positional vertigo from a human case report.
abstract: For horizontal canal benign paroxysmal positional vertigo, determination of the pathologic side is difficult and based on many physiological assumptions. This article reports findings on a patient who had one dysfunctional inner ear and who presented with horizontal canal benign paroxysmal positional vertigo, giving us a relatively pure model for observing nystagmus arising in a subject in whom the affected side is known a priori. It is an interesting human model corroborating theories of nystagmus generation in this pathology and also serves to validate Ewald's second law in a living human subject.
authors.affiliation: Division of Otolaryngology-Head and Neck Surgery, Dalhousie University, Halifax, Nova Scotia, Canada.
authors.forename: Margaret
authors.initials: M
authors.lastname: Aron
authors.forename: Manohar
authors.initials: M
authors.lastname: Bance
mesh_terms: D000369:Aged, 80 and over; D065635:Benign Paroxysmal Positional Vertigo; D003937:Diagnosis, Differential; D004584:Electronystagmography; D006801:Humans; D008297:Male; D009759:Nystagmus, Pathologic / Q000209:etiology / Q000503:physiopathology; D011187:Posture / Q000502:physiology*; D012665:Semicircular Canals / Q000503:physiopathology*; D014717:Vertigo / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology
keywords: Benign paroxysmal positional vertigo; Ewald; ageotropic; horizontal canal; human model; in vivo; lateral canal; positional vertigo; vertigo