%0 Journal Article
%T Paroxysmal positional vertigo despite complete vestibular impairment: the role of instrumental assessment
%A A.P. CASANI
%A E. NAVARI
%A N. CERCHIAI
%J Archive of "Acta Otorhinolaryngologica Italica".
%D 2018
%R 10.14639/0392-100X-1549
%X Lindsay-Hemenway syndrome is characterised by a posterior canal benign paroxysmal positional vertigo following a partial unilateral vestibular loss affecting the same side. The syndrome is caused by damage of structures innervated by the superior division of the vestibular nerve and perfused by the anterior vestibular artery; the detached otoconia can cause vertigo in the still intact posterior semicircular canal. The most recent vestibular instrumental techniques allow reaching an accurate topodiagnosis in case of peripheral vestibular failure. We report on two cases of Lindsay-Hemenway syndrome despite complete vestibular failure demonstrated by vestibular instrumental assessment. After making some critical considerations on these findings, we underline the importance of not disregarding the diagnosis of paroxysmal positional vertigo in an established complete labyrinthine loss of function
%K Unilateral vestibular loss
%K Vestibular evoked myogenic potentials (VEMPs)
%K video Head Impulse Test (vHIT)
%K Benign paroxysmal positional vertigo
%K Lindsay-Hemenway syndrome Deficit vestibolare unilaterale
%K Potenziali evocati vestibolari miogeni (VEMPs)
%K video Head Impulse Test (vHIT)
%K Vertigine parossistica posizionale benigna
%K Sindrome di Lindsay-Hemenway
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6325650/