منابع مشابه
Positional nystagmus of central origin.
Audiometric, electrophysiologic, and radiographic findings for a 68-year-old male with an "imbalance" concern are presented. This paper has a two-fold purpose: (1) to present an unusual electronystagmography case study and (2) to highlight the importance of test conditions in lesion localization. The specific disease pathophysiology remains obscure. Repeated hearing tests documented a known hea...
متن کاملCentral Positional Nystagmus: A Systematic Literature Review
OBJECTIVE To provide a systematic review of the clinical and radiological features of lesion-induced central positional nystagmus (CPN) and identify salient characteristics that differentiate central from peripheral positional nystagmus (PN). METHODS Systematic literature search according to the preferred reporting items for systematic reviews and meta-analysis. RESULTS A total of 82 patien...
متن کاملDatabase of benign positional paroxysmal nystagmus.
Classification of various manifestations of benign positional paroxysmal nystagmus, due to canalolithiasis or to cupulolithiasis, as a reaction to movements and to the site of detritus, is now possible due to the integration of theoretical knowledge (relationships between the semicircular canals and/or ampullae and the vestibulo-ocular pathways) with the forms of nystagmus induced when the head...
متن کاملCongenital nystagmus and central hypothyroidism
We observed a male newborn with bilateral nystagmus and central hypothyroidism without hypoprolactinemia due to a deletion of chromosome band Xq26.1q26.2, containing FRMD7 and IGSF1. These two loss-of function mutations are known to cause, respectively, congenital nystagmus and the ensemble of central hypothyroidism, hypoprolactinemia and testicular enlargement. These latter two features may no...
متن کاملLight cupula: the pathophysiological basis of persistent geotropic positional nystagmus
OBJECTIVE To clarify the pathophysiological basis of persistent geotropic positional nystagmus (PGN) in patients with the horizontal canal type of benign paroxysmal positional vertigo (H-BPPV), the time constant (TC) of nystagmus and the relationship between its slow phase eye velocity (SPV) and the angle of head rotation in supine were defined. METHODS Geotropic or apogeotropic positional ny...
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ژورنال
عنوان ژورنال: Journal of Clinical Otolaryngology Head and Neck Surgery
سال: 2006
ISSN: 1225-0244,2713-833X
DOI: 10.35420/jcohns.2006.17.2.196