Title of article :
Normative vestibulo-ocular reflex data in 6-12 year-old children using video head-impulse test
Author/Authors :
Alizadeh ، Siyamak - Iran University of Medical Sciences , Rahbar ، Nariman - Iran University of Medical Sciences , Ahadi ، Mohsen - Iran University of Medical Sciences , Sameni ، Seyyed Jalal - Iran University of Medical Sciences
Pages :
6
From page :
145
To page :
150
Abstract :
Background and Aim: The video head-impulse test (vHIT) is a useful clinical tool to measure vestibulo-ocular reflex (VOR) gain that is defined as the ratio of eye velocity to head velocity. Although normative data are available for VOR gain, most studies only report horizontal semi-circular canal VOR in adults and overlooked children. Hence, this study aimed at establishing normative VOR data for 6-12 years old children. Methods: Vestibuloocular reflex gain in horizontal and vertical planes was assessed on 60 healthy children without a history of balance and hearing problems using sudden, fast, and unpredictable head impulses. Results: The mean and standard deviation of VOR gains were 0.99 (0.05), 0.98 (0.06), and 0.93 (0.06) for horizontal, anterior, and posterior canals, respectively. Gain differences between genders were not statistically significant. Conclusion: The simplicity and tolerability of vHIT in children showed that it can be used as a screening tool to diagnose vestibular disorders in children. In addition, it was seen that mean VOR gain is greater in horizontal canal than vertical canal.
Keywords :
Semicircular canal , vestibuloocular reflex gain , video head , impulse test
Journal title :
Auditory and Vestibular Research
Serial Year :
2017
Journal title :
Auditory and Vestibular Research
Record number :
2461664
Link To Document :
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