scholarly journals Functional Integrity of the Inferior Vestibular Nerve and Posterior Canal BPPV

2020 ◽  
Vol 11 ◽  
Author(s):  
Avi Shupak ◽  
Rohi Falah ◽  
Margalith Kaminer
Keyword(s):  
Vestibular Nerve ◽  
Posterior Canal ◽  
Functional Integrity ◽  
Inferior Vestibular Nerve

Methodology for Skull Tap Vestibular Evoked Myogenic Potentials (Tap-cVEMP)

2017 ◽  
Vol 6 (3) ◽  
pp. 26-29
Author(s):  
Paulina Glinka ◽  
Magdalena Lachowska ◽  
Kazimierz Niemczyk
Keyword(s):  
Cerebellopontine Angle ◽  
Pathological Process ◽  
Sternocleidomastoid Muscle ◽  
Vestibular Nerve ◽  
Vestibular Evoked Myogenic Potentials ◽  
Nerve Bundle ◽  
Cerebellopontine Angle Tumor ◽  
Functional Integrity ◽  
Nerve Bundles ◽  
Inferior Vestibular Nerve

Objective: The aim of this study is to present a methodology of vestibular evoked myogenic potentials registered from sternocleidomastoid muscle (SCM) using skull tap stimulation (Tap-cVEMP) in a patient with cerebellopontine angle tumor (CPAT). Material and methods: A 23-year-old female with CPAT. The methodology of Tap-cVEMP is introduced. The results of VEMP is confronted with surgical information about the tumor. Results: The results of AC-cVEMP and Tap-cVEMP revealed the inferior vestibular nerve bundle to be affected by the tumor with intact superior bundle. Information obtained from VEMP was confirmed during surgery. Conclusion: Skull Tap Vestibular Evoked Myogenic Potentials (Tap-cVEMP) may be the useful method in the diagnostics of CPAT. AC-cVEMP and Tap-cVEMP may be helpful to evaluate the functional integrity of both vestibular nerve bundles providing the information about their involvement in the pathological process.

Imaging case study: enlarged superior vestibular nerve canal with sensorineural hearing loss

2008 ◽  
Vol 123 (5) ◽  
pp. 572-574 ◽  
Author(s):  
M I Redleaf ◽  
J M Pinto ◽  
J J Klemens
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
Case Report ◽  
Sensorineural Hearing Loss ◽  
Temporal Bone ◽  
Male Infant ◽  
Vestibular Nerve ◽  
Sensorineural Hearing ◽  
Inferior Vestibular Nerve

AbstractObjective:We report a new temporal bone anomaly – an enlarged superior vestibular nerve canal – associated with sensorineural hearing loss.Case report:A 10-month-old male infant presented with sensorineural hearing loss together with bilaterally enlarged superior vestibular nerve canals. Compared with published temporal bone computed tomography measurements, our patient's canals were normal in length but approximately double the normal width. In addition, careful review of the imaging did not clearly identify a bony wedge between the superior and inferior vestibular nerve canals.Conclusion:Enlarged superior vestibular nerve canal malformation may be a marker for sensorineural hearing loss. Increased vigilance amongst otologists may establish the prevalence of this anomaly and its possible effects on hearing.

Effects of unilateral dysfunction of the inferior vestibular nerve system on postural stability

2010 ◽  
Vol 121 (8) ◽  
pp. 1279-1284 ◽  
Author(s):  
Chisato Fujimoto ◽  
Toshihisa Murofushi ◽  
Yasuhiro Chihara ◽  
Munetaka Ushio ◽  
Takuhiro Yamaguchi ◽  
...  
Keyword(s):  
Postural Stability ◽  
Vestibular Nerve ◽  
Inferior Vestibular Nerve ◽  
Nerve System

Infrared/Video Eng Recording of Eye Movements to Evaluate the Inferior Vestibular Nerve Using the Minimal Caloric Test

1988 ◽  
Vol 98 (3) ◽  
pp. 207-210 ◽  
Author(s):  
Fred H. Linthicum ◽  
Ron Waldorf ◽  
William M. Luxford ◽  
Sharon Caltogirone
Keyword(s):  
High Frequency ◽  
Auditory Brainstem ◽  
Vestibular Nerve ◽  
Caloric Test ◽  
Nerve Section ◽  
High Frequency Hearing Loss ◽  
Vestibular Response ◽  
Infrared Video ◽  
Inferior Vestibular Nerve ◽  
Brainstem Response

The technique was originally developed to test the inferior vestibular nerve in tumor suspects whose high-frequency hearing loss exceeded the capabilities of the auditory brainstem response tests and whose electronystagmographic results showed no significantly reduced vestibular response. The test has subsequently been found effective to demonstrate persistent singular nerve fiber function in patients with persistent vertigo after retrolabyrinthine vestibular nerve section.

Tumor origin and hearing preservation in vestibular schwannoma surgery

2011 ◽  
Vol 115 (5) ◽  
pp. 900-905 ◽  
Author(s):  
Jens Rachinger ◽  
Stefan Rampp ◽  
Julian Prell ◽  
Christian Scheller ◽  
Alex Alfieri ◽  
...  
Keyword(s):  
Vestibular Schwannoma ◽  
Tumor Size ◽  
Hearing Preservation ◽  
Vestibular Nerve ◽  
Cochlear Nerve ◽  
Nerve Function ◽  
Nerve Preservation ◽  
Tumor Origin ◽  
Inferior Vestibular Nerve ◽  
Vs Removal

Object Preservation of cochlear nerve function in vestibular schwannoma (VS) removal is usually dependent on tumor size and preoperative hearing status. Tumor origin as an independent factor has not been systematically investigated. Methods A series of 90 patients with VSs, who underwent surgery via a suboccipitolateral route, was evaluated with respect to cochlear nerve function, tumor size, radiological findings, and intraoperatively confirmed tumor origin. All patients were reevaluated 12 months after surgery. Results Despite comparable preoperative cochlear nerve status and larger tumor sizes, hearing preservation was achieved in 42% of patients with tumor originating from the superior vestibular nerve, compared with 16% of those with tumor originating from the inferior vestibular nerve. Conclusions Tumor origin is an important prognostic factor for cochlear nerve preservation in VS surgery.

Preservation of tap vestibular evoked myogenic potentials despite resection of the inferior vestibular nerve

2004 ◽  
Vol 14 (4) ◽  
pp. 347-351 ◽  
Author(s):  
Krister Brantberg ◽  
Tiit Mathiesen
Keyword(s):  
Bone Conduction ◽  
Vestibular Function ◽  
Vestibular Nerve ◽  
Vestibular Evoked Myogenic Potentials ◽  
Nerve Function ◽  
Sound Stimulation ◽  
Vestibular Loss ◽  
Vestibular Neurectomy ◽  
Inferior Vestibular Nerve ◽  
Healthy Side

Sound and skull-tap induced vestibular evoked myogenic potentials (VEMP) were studied in a 43-year-old man following inferior vestibular neurectomy. Surgery was performed because of a small acoustic neuroma. Postoperative caloric testing suggested sparing of superior vestibular nerve function on the operated side. In response to sound stimulation there were no VEMP on the operated side, irrespective of whether sounds were presented by air- or bone-conduction. This suggests sound-induced VEMP to be critically dependent on inferior vestibular nerve function and this is in agreement with present knowledge. However, VEMP were obtained in response to forehead skull taps, i.e. positive-negative VEMP not only on the healthy side but also on the operated side. This suggests remnant vestibular function on the operated side of importance for forehead skull tap VEMP, because with complete unilateral vestibular loss there are no (positive-negative) VEMP on the lesioned side. Thus, forehead skull-tap VEMP depend, at least partly, on the superior vestibular nerve function.

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