AUTHOR=Guinand Nils , Van de Berg Raymond , Cavuscens Samuel , Ranieri Maurizio , Schneider Erich , Lucieer Floor , Kingma Herman , Guyot Jean-Philippe , Pérez Fornos Angélica TITLE=The Video Head Impulse Test to Assess the Efficacy of Vestibular Implants in Humans JOURNAL=Frontiers in Neurology VOLUME=8 YEAR=2017 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2017.00600 DOI=10.3389/fneur.2017.00600 ISSN=1664-2295 ABSTRACT=
The purpose of this study was to evaluate whether it is possible to restore the high-frequency angular vestibulo-ocular reflex (aVOR) in patients suffering from a severe bilateral vestibulopathy (BV) and implanted with a vestibular implant prototype. Three patients (S1–3) participated in the study. They received a prototype vestibular implant with one to three electrode branches implanted in the proximity of the ampullary branches of the vestibular nerve. Five electrodes were available for electrical stimulation: one implanted in proximity of the left posterior ampullary nerve in S1, one in the left lateral and another one in the superior ampullary nerves in S2, and one in the right lateral and another one in the superior ampullary nerves in S3. The high-frequency aVOR was assessed using the video head impulse test (EyeSeeCam; EyeSeeTec, Munich, Germany), while motion-modulated electrical stimulation was delivered