Blödow A, Helbig R, Wichmann N, Wenzel A, Walther L E, Bloching M B
Klinik für Hals-, Nasen-, Ohrenheilkunde, Plastische Chirurgie und Kommunikationsstörungen, HELIOS-Klinikum Berlin-Buch Schwanebecker Chaussee 50, 13125 Berlin.
HNO. 2013 Sep;61(9):781-5. doi: 10.1007/s00106-013-2752-x.
The video head impulse test (vHIT) is a new method for investigating vestibular function that is currently poorly studied in terms of its value for clinical diagnosis in otolaryngology. Both the caloric irrigation and vHIT serve to evaluate the horizontal vestibulo-ocular reflex. In the present study, caloric irrigation and vHIT were compared in 46 patients with vestibular schwannoma. Caloric irrigation exhibits a higher sensitivity than vHIT (72% versus 41%) and both tests show only a moderate correlation. Tumor size and hearing level was significantly correlated with caloric abnormalities but not with vHIT findings. Since caloric irrigation and vHIT measure the hVOR in low and high frequency ranges, respectively, these tests have to be considered complementary and are valuable in both diagnostics and therapeutic decisions.
视频头脉冲试验（vHIT）是一种用于研究前庭功能的新方法，目前就其在耳鼻喉科临床诊断中的价值而言，研究较少。冷热试验和vHIT均用于评估水平前庭眼反射。在本研究中，对46例前庭神经鞘瘤患者进行了冷热试验和vHIT比较。冷热试验的敏感性高于vHIT（72%对41%），且两项测试仅显示出中度相关性。肿瘤大小和听力水平与冷热试验异常显著相关，但与vHIT结果无关。由于冷热试验和vHIT分别在低频和高频范围内测量水平前庭眼反射，因此这些测试应被视为互补的，并且在诊断和治疗决策中均有价值。
