[Video head impulse test or caloric irrigation?. Contemporary diagnostic tests for vestibular schwannoma].

Abstract

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.

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@article{Bldow2013VideoHI, title={[Video head impulse test or caloric irrigation?. Contemporary diagnostic tests for vestibular schwannoma].}, author={Alexander Bl{\"{o}dow and Rainer Helbig and Nicolas Wichmann and Andr{\'e} Wenzel and Leif Erik Walther and Marc Bloching}, journal={HNO}, year={2013}, volume={61 9}, pages={781-5} }