The applicability of the VNG System for Diagnostics and Physiotherapy Planning in Vertigo and Dizziness Patients – a pilot study

Abstract

<b>Introduction:</b> Videonystagmography (VNG) using a rotating chair is a recent tool for examining the vestibular system with infrared-sensitive cameras for ocular movement registration. This method aids in the differential diagnosis and treatment of dizziness. In practice, it can also be used by skilled physiotherapists as a complement to the diagnostics of balance disorders.<b>Aim:</b> The aim of the presented project is to evaluate whether VNG using a rotating chair in a physiotherapist’s practice is a useful tool to serve as an addition to clinical diagnostics in the assessment and planning of rehabilitation.<b>Materials and methods:</b> During a three-month period of study at the neurology department, 12 out of 42 patients with vertigo or dizziness were included for further analysis. The group consisted of eight women and four men aged 27–79 years. The study included only patients with vertigo of unspecified aetiology. VNG testing involving BURST protocol was performed by a physiotherapist to confirm the origin of the dizziness. Furthermore, the patients completed the Dizziness Handicap Inventory (DHI) questionnaire. Following the tests, a tailored set of physiotherapeutic exercises was prescribed and performed by the patient for two days. Subsequently, the patients underwent re-examination using a rotatory chair with VNG.<b>Results:</b> Among the 12 patients examined, the overall quality of life improved after therapy, as evaluated through the DHI questionnaire. This improvement was correlated with elevated fixation index scores post-therapy<b>Conclusions:</b> The use of a rotating chair has enabled to apply the optimal physiotherapy treatment. However, further research is needed to develop patient-specific therapy using VNG testing.