caa a22 4500 606185550 CHVBK 20210128100832.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00405-014-3271-4 doi (NATIONALLICENCE)springer-10.1007/s00405-014-3271-4 Enhancing the reproducibility of ocular vestibular evoked myogenic potentials by use of a visual target originating from a head-mounted laser [Elektronische Daten] [Claudia Jerin, Klaus Bartl, Erich Schneider, Robert Gürkov] Ocular vestibular evoked myogenic potentials (oVEMPs) represent extraocular muscle activity in response to vestibular stimulation. oVEMP amplitudes are known to increase with increasing upward gaze angle, while the patient fixates a visual target. We investigated two different methods of presenting a visual target during oVEMP recordings. 57 healthy subjects were enrolled in this study. oVEMPs were elicited by 500Hz air-conducted tone bursts while the subjects were looking upward at a marking which was either fixed on the wall or originated from a head-mounted laser attached to a headband, in either case corresponding to a 35° upward gaze angle. oVEMP amplitudes and latencies did not differ between the subjects looking at the fixed marking and the ones looking at the laser marking. The intra-individual standard deviation of amplitudes obtained by two separate measurements for each subject, however, as a measure of test-retest reliability, was significantly smaller for the laser headband group (0.60) in comparison to the group looking at the fixed marking (0.96; p=0.007). The intraclass correlation coefficient revealed better test-retest reliability for oVEMP amplitudes when using the laser headband (0.957) than using the fixed marking (0.908). Hence, the use of a visual target originating from a headband enhances the reproducibility of oVEMPs. This might be due to the fact that the laser headband ensures a constant gaze angle and rules out the influence of small involuntary head movements on the gaze angle. Springer-Verlag Berlin Heidelberg, 2014 Vestibular evoked myogenic potential nationallicence VEMP nationallicence oVEMP nationallicence Gaze nationallicence Jerin Claudia German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut Bartl Klaus German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut Schneider Erich German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut Gürkov Robert German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/10(2015-10-01), 2737-2740 0937-4477 272:10<2737 2015 272 405 https://doi.org/10.1007/s00405-014-3271-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-3271-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jerin Claudia German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut NATIONALLICENCE 700 1- Bartl Klaus German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut NATIONALLICENCE 700 1- Schneider Erich German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut NATIONALLICENCE 700 1- Gürkov Robert German Center for Vertigo and Balance Disorders, Grosshadern Medical Center, University of Munich, Marchioninistr. 15, 81377, Munich, Germany aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/10(2015-10-01), 2737-2740 0937-4477 272:10<2737 2015 272 405