儿童功能性视觉头脉冲试验（fvHIT）：可行性与正常参考值

文献信息

中文摘要

目的： 当前儿童前庭诊疗主要关注运动发育和姿势控制，而凝视稳定受损的后果较少被关注。功能性视觉头脉冲试验（fvHIT）提供了一种评估快速头部运动期间功能性凝视稳定的方法。本研究旨在检验fvHIT在儿童中的可行性并建立正常参考值。
方法： 94名健康儿童（4-12岁）接受了fvHIT测试。记录可行性、总分及每个加速度带中正确识别视标的百分比。统计分析评估了侧别和年龄差异。
结果： 可行性随年龄增长而提高，从6岁起，所有儿童（100%）均能可靠完成测试。fvHIT评分未观察到显著的侧别差异。4岁和5岁儿童的评分显著低于年龄较大的组。正常参考值集中在90%左右，随年龄增长而提高，并在较高加速度时略有下降。
结论： fvHIT是评估儿童功能性凝视稳定的一种可行方法。本研究获得的正常参考值为未来研究提供了参考，并可支持临床实践中评估易出现凝视稳定困难的儿童的表现。

英文摘要

ObjectivesCurrent pediatric vestibular care mainly focuses on motor development and postural control whereas the consequences of impaired gaze stabilization are less frequently addressed. The Functional Vision Head Impulse Test (fvHIT) offers a method to assess functional gaze stabilization during rapid head movements. This study aimed to examine the feasibility of the fvHIT in children and establish normative values.MethodsNinety-four healthy children (4-12 years) underwent fvHIT testing. Feasibility, the percentage of correctly identified optotypes in total scores and per acceleration band were recorded. Statistical analyses assessed side and age differences.ResultsFeasibility increased with age and from the age of six onward, all children (100%) completed the test reliably. No significant side differences were observed in fvHIT scores. Four- and five-year-olds scored significantly lower than older groups. Normative values centered around 90%, increased with age, and showed a slight decline at higher accelerations.ConclusionThe fvHIT is a feasible method for assessing functional gaze stabilization in children. The normative values obtained in this study provide a reference for future research and can support clinical practice in evaluating performance in children who are prone to gaze stabilization difficulties.