Role of Electronystagmography in Diagnosis of Secondary BPPV in Elderly Patients with Vertigo: A Retrospective Study
Elderly population is frequently affected by vertigo which affects their mobility and makes them vulnerable to fall and other morbidities. Often these patient visit neurologist and are often subjected to CT scan, MRI brain etc. to rule out a central cause of vertigo; whereas majority of these patients suffer from vestibular cause of vertigo. A schematic approach by detailed history, simple tests for vestibular functions like Dix Hallpike, supine roll and head impulse test give important clue to diagnosis. Often the diagnosis is benign paroxysmal positional vertigo (BPPV) which is treated by repositioning maneuver. There are often other vestibular causes which may be diagnosed by Electronystagmography (ENG), electrocochleography and other tests. This study was undertaken to study occurrence of secondary BPPV utilizing various parameters of ENG. The study group comprised of 131 patients from the neuro-otology proforma data base at ENT centre and vertigo clinic from January 2015 to December 2017. Inclusion criterion was male and female aged 51 years and above presenting with dizziness, imbalance, rotational vertigo, unsteadiness as the chief complaint. Exclusion criterion was BPPV relieved after Epley’s maneuver, Otitis externa, acute Otitis media, Suppurative Otitis media, pre existing neurological condition and history of ear surgery. Neuro-otology Data obtained and the ENG findings were tabulated in the master chart and the observations interpreted and transferred to Claussen’s butterfly chart. The study group comprised of 58 male (44.27%) and 73 female (55.73%) with a male female ratio of 1:1.25. ENG exhibited 36 patients (27.49) to have recurrent BPPV, 53 (40.45%) were found to have unilateral/bilateral canal paresis. Meniere’s disease was diagnosed in 39 (29.77%) patients and brain stem pathology identified in 3 (2.29%) cases.
KeywordsVertigo BPPV Electronystagmography
Compliance with Ethical Standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures in study involving human participants are in accordance with ethical standards of the Institutional and/or National research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in study.
Human and Animal Rights
This article does not contain any studies with animals performed by any of the authors.
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