Video head impulse testing: Pitfalls in neurological patients.

The video head impulse test (vHIT) assesses the vestibulo-ocular reflex (VOR) during a rapid high-velocity low amplitude (10°-20°) head rotation. Patients with peripheral vestibulopathy have a reduced VOR gain with corrective catch-up saccades during the head turn. There are several pitfalls, mainly technical, which may interfere with interpretation of vHIT data.

Are Cervical Collars a Necessary Postprocedure Restriction in Patients With Benign Paroxysmal Positional Vertigo Treated With Particle Repositioning Maneuvers?

Introduction: Benign paroxysmal positional vertigo (BPPV) is managed with particle repositioning maneuvers (PRM), following which patients are advised of activity restrictions to prevent recurrence. This can include wearing a cervical collar.

Objective: Does the use of BPPV postprocedure restriction with a cervical collar impact on the number of PRMs required to resolve a patient's symptoms?

Method: Combination of retrospective and prospective review of 624 patients treated in a tertiary UK hospital.