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Hearing Testing



HEARING/AUDIOLOGICAL TESTINGS

PURE TONE AUDIOMETRY / AUDIOGRAM

  • Degree of hearing loss (How much problem).
  • Types of hearing loss (Where is the problem).
  • To Rule out Retrocochlear and Cochlear pathology.

IMPEDENCE AUDIOMETRY (Interaacoustic, Zarmany)

  • To rule out middle ear pathology.
  • To rule out cochlear sensitivity loss or VIII nerve disorder.
  • Ipsilateral VII nerve lesion.
  • Evoked stapedius reflex test for cochlear implant.

SPEECH AUDIOMETRY

Provides information about hearing handicap. Problem maybe worse than indicated by pure tone average (PTA) for the speech frequencies.

  • Useful to determine candidacy for hearing aid.
  • A very poor result, out of proportion to PTA, suggests probable retrocochlear cause of hearing loss.
  • SRT
  • SDT (PBmax100)
  • SAT
  • UCL

Behavioral Observation Audiometry (BOA)

  • For small children.

Conditioning Audiometry

  • To know aided response.(With hearing aid and cochlear implant)
  • For smaller children.

Oto Acoustic Emission (OAE) - (Biologic Company, USA)

  • To rule out hearing loss in newborn.
  • To rule out inner ear pathology.

Brainstem Evoked Response Potential (BERA) - (Biologic Company, USA)

  • To know site of lesion.
  • Fully automatic & computerized test.
  • Threshold estimation

Multiple Auditory Steady-State Response (ASSR) - (Biologic Company, USA)

  • Objective Audiometry.
  • Fully automatic and computerized

Electrocochleorgraphy (ECochG) - (Biologic Company, USA)

  • Diagnosis of Meniere's disease.
  • Differential diagnosis.

Objective and subjective fitting of all companies of digital hearing aid- (Swiss & USA combine technology)

  • Objective fitting gives accurate fitting in children as per earcanal length.
  • It care overamplification and prevents further damage due to overamplification.

Mapping & Telemetry:

  • Mapping & Telemetry available for all three companies of Cochlear implants.

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