Abstract
This study investigated 258 consecutive patients with the complaint of vertigo undergoing vestibular function tests between August 1992 and July 1994. The head-shaking nystagmus test was performed in a passive fashion with the patient placed in a sitting position with the head anteflexed at 30 degrees and oscillated +/- 45 degrees horizontally for 30 cycles in 15 s; the post head-shaking nystagmus was recorded by electronystagmography. Conventional bithermal caloric tests were conducted with the normal limit of canal paresis set at 20%. The results show significant correlation between head-shaking nystagmus and canal paresis. Head-shaking nystagmus is more sensitive than canal paresis in predicting vestibular dysfunction. The sensitivity of head-shaking nystagmus in detecting a canal paresis was 90%. Although the direction of head-shaking nystagmus does not always accord with the side of peripheral vestibular dysfunction, it is an indicator of vestibular dysfunction and this test could be performed easily as a screening test in every otoneurological investigation.
TY - JOUR
T1 - Head-shaking nystagmus: a sensitive indicator of vestibular dysfunction.
AU - Tseng,H Z,
AU - Chao,W Y,
PY - 1998/2/18/pubmed
PY - 1998/2/18/medline
PY - 1998/2/18/entrez
SP - 549
EP - 52
JF - Clinical otolaryngology and allied sciences
JO - Clin Otolaryngol Allied Sci
VL - 22
IS - 6
N2 - This study investigated 258 consecutive patients with the complaint of vertigo undergoing vestibular function tests between August 1992 and July 1994. The head-shaking nystagmus test was performed in a passive fashion with the patient placed in a sitting position with the head anteflexed at 30 degrees and oscillated +/- 45 degrees horizontally for 30 cycles in 15 s; the post head-shaking nystagmus was recorded by electronystagmography. Conventional bithermal caloric tests were conducted with the normal limit of canal paresis set at 20%. The results show significant correlation between head-shaking nystagmus and canal paresis. Head-shaking nystagmus is more sensitive than canal paresis in predicting vestibular dysfunction. The sensitivity of head-shaking nystagmus in detecting a canal paresis was 90%. Although the direction of head-shaking nystagmus does not always accord with the side of peripheral vestibular dysfunction, it is an indicator of vestibular dysfunction and this test could be performed easily as a screening test in every otoneurological investigation.
SN - 0307-7772
UR - https://www.unboundmedicine.com/medline/citation/9466069/Head_shaking_nystagmus:_a_sensitive_indicator_of_vestibular_dysfunction_
L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0307-7772&date=1997&volume=22&issue=6&spage=549
DB - PRIME
DP - Unbound Medicine
ER -
