Abstract
Aims and Objectives: To study benefit of videonystagmography in confirmation of canalolith repositioning in patients with Benign Paroxysmal Positional Vertigo after Epley’s manouver. Study Design: Prospective study of 35 cases of BPPV. Materials and Method: 35 patients of BPPV presenting at vertigo clinic of ENT department at Civil Hospital Ahmedabad were treated with canalolith repositioning procedure and improvement in nystagmus was studied and confirmed by VNG. Observation: 31 patients out of 35 patients were improved with 1st CRP, 2 out of 3 patients improved with 2nd CRP and 1 patient improved with 3rd CRP. This improvement is confirmed using VNG. Conclusion: Videonystagmography is a very useful tool for ensuring the otolith repositioning by the canalith repositioning manouver. It is a confirmatory adjunct to visual analysis.
Highlights
BPPV (Benign Paroxysmal Positional Vertigo) is the most common cause of vertigo
The canalith theory suggests that the gravity dependent movement of heavier otoconial debris from utricle to lateral semicircular canal is responsible for vertigo
The crystals themselves can adhere to a semicircular canal cupula making it heavier than the surrounding endolymph
Summary
BPPV (Benign Paroxysmal Positional Vertigo) is the most common cause of vertigo It is typically described as a brief, intense sensation of spinning that occurs when there are changes in the position of the head with respect to gravity. Any disorder of balance mechanism produces small eye jerks that can only be detected by computer and frenzel’s goggles [5] [6] It can be monitored by putting body in different positions by Dix Hallpike’s test and Roll Over test. Epley’s maneuver (canalith repositioning procedure—CRP) [1]-[3] [9]-[11] is to reposit otoconia from abnormal position of SCC to normal in utricle. The common factors responsible for recurrence are hormones, calcium metabolism and trauma
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