![]() The questionnaire was translated into Japanese and cross-culturally adapted. They also completed the VSS-short form a second time 1-3 days later. Participants completed the VSS-short form, the Dizziness Handicap Inventory, and the Hospital Anxiety and Depression Scale. We conducted a cross-sectional, multicenter, psychometric evaluation of patients with non-central dizziness or vertigo persisting for longer than 1 month. ![]() Here, we clarified the factor structure of the VSS-short form, and assessed the validity and reliability of the Japanese version of this tool. Despite frequent use, the factor structure of the VSS-short form has yet to be confirmed. A common assessment tool is the Vertigo Symptom Scale (VSS) -short form, which has two subscales: vestibular-balance and autonomic-anxiety. Kondo, Masaki Kiyomizu, Kensuke Goto, Fumiyuki Kitahara, Tadashi Imai, Takao Hashimoto, Makoto Shimogori, Hiroaki Ikezono, Tetsuo Nakayama, Meiho Watanabe, Norio Akechi, Tatsuoĭizziness or vertigo is associated with both vestibular-balance and psychological factors. All rights reserved.Īnalysis of vestibular-balance symptoms according to symptom duration: dimensionality of the Vertigo Symptom Scale-short form. Psychological distress is an important mechanism in the process how vertigo symptoms lead to vertigo-related handicap. When statistically controlling for the other mediators in a multiple mediator model, only depression at 6-month follow-up mediated the effect of vertigo symptoms at baseline on vertigo-related handicap at 12-month follow-up (p<0.05). When the mediating role of anxiety, depression, and somatization was evaluated separately from each other in single mediation models, the effect vertigo symptoms at baseline exerted on vertigo-related handicap at 12-month follow-up was significantly mediated by depression at 6-month follow-up (p<0.05), by anxiety at 6-month follow-up (p<0.05), as well as by somatization at 6-month follow-up (p<0.05). Mediation analyses with bootstrapping were performed to investigate the mediating role of anxiety, depression, and somatization in the relationship between vertigo symptoms and vertigo-related handicap. N=111 patients with vertigo/dizziness provided complete data on the following measures: Vertigo symptoms at baseline, depression at 6-month follow-up, anxiety at 6-month follow-up, somatization at 6-month follow-up, and vertigo handicap at 12-month follow-up. This longitudinal study investigated whether depression, anxiety, and/or somatization mediate the relationship between vertigo symptoms and vertigo-related handicap. ![]() Vertigo symptoms can lead to more or less vertigo-related handicap. Probst, Thomas Dinkel, Andreas Schmid-Mühlbauer, Gabriele Radziej, Katharina Limburg, Karina Pieh, Christoph Lahmann, Claas Therefore, the DHI does not correlate with vestibular tests, and neither reflects the presence nor severity of peripheral vestibular deficits.Ĭaloric testing Dizziness Handicap Inventory Vestibular-evoked myogenic potential Video head impulse test.Psychological distress longitudinally mediates the effect of vertigo symptoms on vertigo-related handicap. There was no significant correlation between DHI and postural sway on posturography. DHI of patients with deficits of canal or otolith function did not differ significantly from those with no deficits (z = 2.153, p = 0.541). Patients with central vestibular disorders had higher DHI than those with peripheral (z = - 4.743, p = 0.001) or functional disorders (z = - 2.902, p = 0.004). No significant correlation was found between DHI and (1) vestibulo-ocular reflex parameters: unilateral weakness r = - 0.018, total calorics r = 0.055, vHIT right r = 0.007, vHIT left r = - 0.091, vHIT asymmetry r = 0.013 (2) otolith parameters: cVEMP amplitude right r = - 0.034, amplitude left r = - 0.004, asymmetry r = 0.016 oVEMP amplitude right r = 0.044, amplitude left r = - 0.007, asymmetry r = - 0.008. We prospectively evaluated 799 patients with precise vestibular diagnoses using video head impulse testing (vHIT), caloric irrigation, and cervical/ocular vestibular-evoked myogenic potentials (c/oVEMP). We also correlated the DHI and posturography. Secondarily, we compared DHI among different vestibular disorders (central, peripheral and functional), and different types of anatomic deficits (semicircular canal vs otolithic). Our primary study objective is to evaluate the correlation between the DHI and measurable vestibular parameters. However, patients with chronic vestibular diseases may manifest various degrees of behavioural and physiological adaptation resulting in variances of the DHI. The Dizziness Handicap Inventory (DHI) is believed to quantitate the handicap related to the presence or severity of underlying vestibular dysfunction.
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