Open AccessThe head shaking nystagmus
Author(s) -
Subhash C. Mishra,
Satya Vrat,
Anupam Mishra
Publication year - 1999
Publication title -
indian journal of otolaryngology and head and neck surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.229
H-Index - 22
eISSN - 2231-3796
pISSN - 0973-7707
DOI - 10.1007/bf02996432
Subject(s) - nystagmus , medicine , audiology , vestibular system , vertigo , otorhinolaryngology , vestibular function tests , electronystagmography , physical medicine and rehabilitation , surgery
The head shaking nystagmus is a sign of vestibular assymmetry. Its detection is simple office test useful for screening the patients with vertigo and dysequilibrium. Its nature defies its recording with electro-oculography and is simply observed under Frenzel's glasses. The direction of nystagmus is persistently directed away from the site of lesion and is not influenced by the compensatory adjustments. It is transient, rotatory and repeatable in nature. Its reliability is limited in face of the difficulty in its recognition. In presence of strong spontaneous nystagmus in the same face, it is not recognised easily. In the present study, its validity in peripheral disorders was 49.27% and 14% in central cases. There are limitations In earring out this test in situations of railed intracranial the tension, hence, its use in the latter cases is limited.