CC BY-NC-ND 4.0 · Laryngorhinootologie 2018; 97(S 02): S248
DOI: 10.1055/s-0038-1640571
Abstracts
Otologie: Otology

Preoperative vestibular function of patients with vestibular schwannoma

P Schendzielorz
1   HNO-Uniklinik Würzburg, Würzburg
,
M Scheich
1   HNO-Uniklinik Würzburg, Würzburg
,
K Rak
1   HNO-Uniklinik Würzburg, Würzburg
,
J Völker
1   HNO-Uniklinik Würzburg, Würzburg
,
A Lundershausen
1   HNO-Uniklinik Würzburg, Würzburg
,
M Bürklein
1   HNO-Uniklinik Würzburg, Würzburg
,
R Hagen
1   HNO-Uniklinik Würzburg, Würzburg
› Author Affiliations
› Further Information
Also available at
 
 

    Introduction:

    Vestibular schwannomas (VS) arise from Schwann cells of one of the branches of the vestibular nerve. Patients suffer from hearing loss, tinnitus or vertigo. The vestibular function of the low frequent vestibular receptors of the horizontal semi-circular canal is usually determined by caloric testing. Recently, video head impulse test (VHIT) was established as a method to investigate the high frequency vestibular receptors of all 6 semi-circular canals. It was demonstrated that application of both methods can lead to more extensive knowledge of preoperative vestibular function, size of tumour or localization of tumour of VS.

    Methods:

    Retrospectively, 50 patients with VS were included that showed up preoperatively at the ENT University hospital Wuerzburg during the year 2015. Size of tumour was graded according to Koos-classification. An internal dizziness questionnaire, video nystagmography, caloric testing and VHIT (gain/saccades) were evaluated.

    Results:

    Size of tumour correlated with both kinds of diagnostic tools. Reduction of vestibular function was detected earlier with caloric testing in this group of patients. VHIT can indicate the origin of the tumour.

    Conclusion:

    Preoperative consultation and decision of therapy in VS can be improved by the use of a combination of VHIT and caloric testing further. In future results of preoperative tests of vestibular function should be compared with intraoperative findings.


    #

    No conflict of interest has been declared by the author(s).

    Dr. med. Philipp Schendzielorz
    HNO-Uniklinik Würzburg,
    Josef-Schneider Str. 11, 97080,
    Würzburg

    Publication History

    Publication Date:
    18 April 2018 (online)

    © 2018. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

    Georg Thieme Verlag KG
    Stuttgart · New York