Interpretation
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Video nystamography (VNG)

The videonystagmography (VNG) test assesses each labyrinth to determine if there is a peripheral loss (inner ear and vestibular nerve dysfunction).  

Vestibular Evoked Myogenic Potential (VEMP)

​​The cervical VEMP (cVEMP) tests the saccule and inferior vestibular nerve and the ocular VEMP (oVEMP) tests the utricle and superior vestibular nerve. An absent response can suggest a possible saccular (absent cVEMP) or uticular loss (absent oVEMP).

Video Head impulse test (vhit)

The video head impulse test (vHIT) assesses the vestibular-ocular reflex (VOR) in the horizontal and vertical planes of movement. Horizonal (or lateral) vHIT tests the VOR in the horizontal semi-circular canals whereas LARP vHIT tests the VOR in the left anterior and right posterior semi-circular canals and RALP vHIT tests the VOR in the right anterior and left posterior semi-circular canals.  A reduction in VOR function can occur in any of the semi-circular canals tested.   

hearing assessment

A hearing assessment determines the degree of hearing loss (both speech and pure tone), the status of the tympanic membrane and acoustic reflexes (immitance testing) in both ears.  The results will also indicate if a patient is a hearing aid candidate.

Auditory brainstem response test (ABR)

An ABR test assesses the integrity of the cochlea and the pathway to the lower brainstem.  A significant interaural wave V latency (the latency difference between the Wave V for the left and right ear) could suggest a retrocochlear pathology.

Electrocochleography test (ecochg)
An ECochG test is used to determine if a patient has endolympatic hydrops (an increase in pressure in the inner ear).  An increase in pressure could indicate Menière's Disease.
cortical test 
A Cortical test is an objective hearing test used to determine hearing thresholds.  A Hearing Assessment is always completed following a cortical test to compare the objective and subjective results.

CONTACT

Tel: (416) 340-3666

Fax: 416-340-3745

info@hearingandbalancecentre.ca

7th Floor, Eaton North Wing - Room 213

Toronto General Hospital

200 Elizabeth St.

Toronto, ON. M5G 2C4

HOURS

Monday: 8am - 4pm

Tuesday: 8am - 4pm

Wednesday: 8am - 4pm

Thursday: 8am - 4pm

Friday: 8am - 3pm

*Note: We close for lunch from

12-1pm except for Fridays

To get to us: Take any elevator within the hospital to the 7th floor. We are located near the Eaton Elevators. Once you reach the 7th floor, follow the signs to Hearing & Balance, room 213. 

 

© 2018 Centre for Advanced Hearing and Balance Testing. All rights reserved.