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BioMed Research International
Volume 2014 (2014), Article ID 135457, 11 pages
Research Article

Clinical Use of Skull Tap Vestibular Evoked Myogenic Potentials for the Diagnoses of the Cerebellopontine Angle Tumor Patients

1Department of Biomedical Engineering, McArthur Annex, University of Miami, Coral Gables, FL 33124, USA
2Intelligent Hearing Systems Inc., 6860 SW 81st Street, Miami, FL 33143, USA
3Department of Otolaryngology, Medical University of Warsaw, Ulica Banacha 1a, 02-097 Warsaw, Poland

Received 28 November 2013; Revised 27 February 2014; Accepted 1 March 2014; Published 2 April 2014

Academic Editor: Mu-Kuan Chen

Copyright © 2014 Erdem Yavuz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To document our experiences using a new skull tapping induced Vestibular Evoked Myogenic Potentials (tap VEMPs) technique combined with standard Auditory Vestibular Evoked Myogenic Potentials (AC VEMPs) for advanced clinical assessment of cerebellopontine angle tumor (CPAT) patients. Design and Study Sample. Three patients were selected in order to highlight observations shown in a larger patient population and to show the variability of the findings. Both tap VEMPs and AC VEMPs were acquired from the sternocleidomastoid muscle (SCM) with EMG-based biofeedback and monitoring. Results. The usefulness of VEMPs was demonstrated, indicating the presence of a tumor and contributing additional information as to the involved nerve bundles in two out of the three cases. Conclusion. Due to the sensory organ dependency and related innervations differences, acquiring both AC VEMPs and tap VEMPs is likely to increase the probability of diagnosing CPATs and provide more information on the involved vestibular nerve bundles. This study demonstrates the feasibility of the possible expansion and combination of tap VEMPs and AC VEMPs techniques into a clinical diagnostic battery for advanced assessment of CPAT patients and its contribution as a guideline for the use of tap VEMPs in general.