2010/03/24 by Helen S. Cohen, Haleh Sangi-Haghpeykar, Haleh Sangi‐Haghpeykar
Health Professions · Neuroscience · #Hemispheric Asymmetry in Neuroscience #Temporomandibular Joint Disorders #Vestibular and auditory disorders
paper · doi:10.3109/00016481003664777
crossref issued 2010/03/24 · crossref published 2010/03/24 · crossref published-online 2010/03/24 · openalex publication_date 2010/03/24 · crossref created 2010/08/24 · crossref published-print 2010/09/01 · crossref deposited 2021/11/07 · openalex created_date 2025/10/10 · crossref indexed 2026/07/29 · openalex updated_date 2026/07/30
CONCLUSION: Although computational models suggest the existence of canalithiasis and cupulolithiasis subtypes of benign paroxysmal positional vertigo (BPPV), these subtypes cannot be distinguished from each other based on characteristics of nystagmus. Therefore, although the subtypes probably exist more information is needed from each patient than is available without invasive procedures. Also, some patients may have clinical syndromes that include both canalithiasis and cupulolithiasis subtypes. OBJECTIVE: To determine if the parameters of nystagmus provide sufficient information to determine the subtype of nystagmus in a patient with BPPV. METHODS: Patients (n = 118) had unilateral BPPV of the posterior canal; 15 patients also had BPPV of the lateral canal. The main outcome measures were parameters of nystagmus in response to the Dix-Hallpike maneuver: latency to onset of nystagmus, maximum slow phase velocity, and maximum duration. RESULTS: Correlations between pairs of variables showed minimal or no relationships. Also, cluster analyses showed no significant subtypes. The contralateral eye moved significantly faster than the ipsilateral eye.