The Role of Functional Head Thrust Test in Diagnosis of Persistent Postural Perceptual Dizziness (PPPD) and Vestibular Migraine
Project no. 22280 · Status: Kapanmış · 2021
Summary
<p>Aim: The aim of this study was to evaluate the vestibulo-ocular reflex (VOR) arc, residual functionality in the VOR, and the deterioration in visual and vestibular input interaction with optokinetic stimuli in persistant postural-perceptual dizziness (PPPD), vestibular migraine (VM) and migraine diagnosis groups. It was also aimed to determine the effect of vestibular involvement on perceived disability in daily life and the contribution of anxiety to the prognosis. Materials and Methods: A total of 90 participants, including 23 VM, 22 PPPD, 22 migraine and 23 healthy control group, were included in the study. All participants were administered the video head impulse test (vHIT), functional head impulse test (fHIT), fHIT with optokinetic stimulus (fHIT-OPK), respectively, while the diagnostic groups also completed the dizziness handicap inventory (DHI), vertigo symptom scale (VSS)-short form, Beck anxiety inventory (BAI). Results: There was no significant difference between the groups in vHIT. The control group achieved a significantly higher percentage of total correct answers (CA%) in fHIT and fHITOPK than the diagnostic groups. In all groups, total CA% was decreased in fHIT-OPK compared with fHIT. The PPPD group received the highest score in all scales. Conclusion: Disruption in the interactions between visual and vestibular input, especially with fHIT-OPK, can be clearly seen in all diagnostic groups. It is thought that it will be important to perform fHIT and then fHIT-OPK in routine clinical practice. Since anxiety is a factor that can worsen PPPD, patients should be followed up psychiatrically.</p>