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Centre for Hearing & Auditory Implants In Delhi, India
Advanced ENT Services
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Mon - Sat: 9 am - 5 pm,
Sunday: CLOSED
Home Centre for Hearing & Auditory ImplantsComprehensive Hearing Assessment (CHA)
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  • Comprehensive Hearing Assessment (CHA)

    This is a test battery of a complete assessment of hearing in a child and is completed by our trained paediatric audiologists. The purpose of the comprehensive hearing assessment (CHA) is to determine if a hearing loss exists, to what degree, and to help discover what type.

    Types of audiological evaluations in the test battery :

    Various different hearing tests can be utilised for differing ages of children. The type of tests used will depend upon the age, level of understanding and cooperation of the child.

    Behavioural hearing tests :

    The tests usually require the child to respond to soft sounds in some way (verbally, by picture pointing, raising the hand or through a game"). These tests can be fun and for infants and toddlers, a head - turn response to a test signal is usually and the best and most reliable testing method. In slightly older children Distraction testing, Visual reinforced audiometry and play / conditioned audiometry are used.

    Auditory brainstem response (ABR / BERA)

    For newborns or infants and children who cannot reliably perform the behavioral test procedures, other more objective tests, such as ABR, can help determine hearing abilities.

    Clicks or tonal ''pips'' are sounded in an infant's ears through earphones. The ABR provides information about the function of the auditory pathway to the level of the brainstem. The response of the clicks or tones are recorded, providing an estimate of hearing sensitivity.

    Auditory Steady State Response (ASSR)

    This is a modified form of ABR where frequency specific information can be obtained to plot an audiogram of hearing thresholds.

    Otoacoustic emissions (OAEs).

    These tests provide a unique way to examine the function of the cochlea. Sounds are sent to the child's ear with a small loudspeaker. A microphone records the response to the sound from the cochlea (known as an emission). This offers valuable information about the sensory hair cells in the cochlea.

    Tympanometry (Impedence testing)

    This test helps determine how well the eardrum and middle ear are working. A gentle puff of air is delivered into the child's ear and the amount the eardrum moves in response to change in air pressure is recorded. If the eardrum does not move, for examination, it could mean there is fluid behind the eardrum and otitis media with effusion may be present. If there is negative pressure it could mean that the child is at risk for developing an ear infection.

    Pure Tone Audiograms

    This can be used in older children. The child wears headphones / ear inserts so each ear can be tested individually. Each ear is presented with pure tones at different frequencies. If a hearing loss is identified bone conduction can also be assessed as part of this test to identify if the loss is sensorineural or conductive.

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    Patient Testimonials
  • ENT Patient Testimonials

    My experience with cochlear implant My name is Gerald Andrew; I am 29 year old male Tanzanian. Last year (2009) was one of the most memorable for me. It’s when I received my cochlear implant at Apollo hospital in New Delhi after Read More »

    Gerald Andrew
  • I wanted to thank you immensely for the help that you provided to my father and thus to our family by giving him the gift of hearing. He is now recovering well and is able to hear all the conversations as normally as anyone else can.

    My father, underwent a Stapedotomy ear surgery to correc ct his hearing problem, first in one ear and then 6 months later in the other. The result of the surgery was better than expected and post full recovery my father is able to hear very well. Read More »

  • My experience with cochlear implant My name is Gerald Andrew; I am 29 year old male Tanzanian. Last year (2009) was one of the most memorable for me. It’s when I received my cochlear implant at Apollo hospital in New Delhi after more than three years of hearing loss. Everyone’s experience with coch hlear implant is a bit different therefore, am happy to share mine with anybody out there, from the moment I lost my hearing, my experience during my stay at Apollo Hospital and one year later on, after cochlear implant. Read More »