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Öğe Evaluation of the efferent auditory system in COVID-19 adult patients(Taylor & Francis Ltd, 2022) Emekci, Tugba; Dundar, Mehmet Akif; Kirazli, Gulce; Kilinc, Fatma Men; Cengiz, Deniz Ugur; Karababe, Ercan; Inceoglu, FeyzaBackground The short- and long-term effects of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on the medial olivocochlear reflex and outer hair cells in the cochlea remain largely unclear. Aims The aim of this study was to investigate the efferent auditory system effects in adult patients with COVID-19. Materials and methods The study included 18-50 years old 44 volunteers: 26 individuals (52 ears) with COVID-19 in the study group and 18 healthy individuals (36 ears) in the control group. Otolaryngological examination, immitancemetric evaluation, distortion product otoacoustic emission (DPOAE), contralateral acoustic stimulation with DPOAE, audiometric evaluation, and high frequency audiometric evaluation were performed in all individuals participating in the study. Results In our study, patients with COVID-19 had significantly lower DPOAE results with or without broadband noise at only 6 kHz frequency and contralateral suppression results at all frequencies compared to healthy individuals. A statistically significant difference was found between the study and control groups according to whether the participants had a response in the high frequency audiometry at 12 and 16 kHz frequencies. Conclusions COVID-19 affects many systems in the body. As a result of the findings obtained in the present study, it is shown that the auditory efferent system may also be affected.Öğe Normative values for semicircular canal function with the video head impulse test (vHIT) in healthy adolescents(Taylor & Francis Ltd, 2021) Emekci, Tugba; Ugur, Kadriye Serife; Cengiz, Deniz Ugur; Kilinc, Fatma MenBackground The vHIT device, which has a mechanism based on measuring the VOR gain, helps us to quickly evaluate six semicircular canals. Aims/Objectives The aim of this study was to establish normative values for semicircular canal function with the video head impulse test (vHIT) battery in normal adolescents. Material and methods 100 (50 females, 50 males) individuals aged 11-18 years, with a mean age of 14.99 years, were included in the study. Results As a result of the vHIT evaluations performed with vHIT Otometrics ICS Impulse A/S Taastrup, Denmark, the mean lateral canal vestibulo-ocular reflex (VOR) gain value was 0.96, the mean anterior canal VOR gain value was 0.89, and the mean posterior canal VOR gain value was 0.87, all of which were within the normal value range. Conclusion and significance While the VOR gain values and asymmetry values are within the normal value range and are similar to the literature, no statistically significant correlation was observed between these values and age. As a result, the vHIT battery is an easy, fast, and practical test method that can be used in adolescents.Öğe vHIT results with the synapsis system according to clinicians' dominant hand use(Ios Press, 2023) Emekci, Tugba; Dundar, Mehmet Akif; Kirazli, Gulce; Inceoglu, Feyza; Cengiz, Deniz Ugur; Kilinc, Fatma Men; Karababa, ErcanBACKGROUND/OBJECTIVE: There exists limited information in the literature on dominant hand preference in relation with vHIT applications. The present study aimed to examine the relationship between the clinician's dominant use of rightor left-hand and vHIT results. METHODS: A Synapsys vHIT Ulmer device was used in the study. The tests were administered by 3 clinicians experienced in vHIT, 2 of whom were right-handed and 1 left-handed. The test was applied to the 94 participants three times, one week apart. RESULTS: In this study, the correlation between right-handed clinicians and left-handed clinicians was examined, and in all SCCs, namely RA, LA, RL, LL, RP and LP, a moderate positive significant correlation was found between right-handed1 and right-handed2, between right-handed1 and left-handed, and between right-handed2 and left-handed. CONCLUSIONS: In this study, these findings suggested that measures were reliable across test sessions regardless of hand dominancy (right or left). Based on the vHIT results we obtained with three different right- or left-handed clinicians, the clinician should evaluate the results according to the dominant side. Keywords: Hand-dominance, left-hand dominance, right-hand dominance,