HEARING EVALUATION

HEARING EVALUATION

At GOOD ‘H’EARS it is our endeavor to use the best possible modalities and approaches to reach a diagnosis !!! Hearing evaluations involve measuring the hearing loss. There are multiple options available to do the same.

 


 

        

 

PURE TONE AUDIOMETRY  The Gold standard and most established modality of hearing assessment. Pure tone Audiometry involves giving sounds of different frequencies and intensities to the Patient and his responses are noted to plot an audiogram which tells us about the hearing status.

 

IMPEDANCE AUDIOMETRY The ear is like a box and when vied from outside only one side of this chamber is seen … namely the tympanic Membrane. Many times this may be normal or near normal and still the patient may show a peculiar hearing loss (conductive Hearing Loss). In such cases a further test known as IMPEDANCE AUDIOMETRY is done to assess the Middle ear pressure and other details.

 

SPEECH AUDIOMETRY In certain cases the understanding of words is less which may or may not be associated with a hearing loss. In such cases (and other indications too such as to assess the benefit of hearing aids , etc) a speech Audiometry is done which assesses the patients speech understanding.

 

BERA (Brainstem Evoked Response Audiometry) It involves the monitoring of the neural response generated by a sound stimulus as it travels through the auditory nerve from the ear to the Brain stem. It is a non invasive investigation. This helps in detecting hearing loss in infants & children. In adults it can be used to detect hearing loss , in detecting lesions of the auditory nerve such as acoustic neuromas , etc.

 

O.A.E. (Oto Acoustic Emissions) The ear produces sound !!! This principle is used in screening for hearing loss in new borns. It take a minute or less, doesn’t harm the baby and is now a days routinely done before discharge from the hospital. Early detection of handling loss new borns given Sufficient time to plan & implement. In simple words : sound produced by ears ! Yes … our ears hear sound … but in certain conditions they produce sound. This principle is used in O.A.E. Testing. After birth of the child , this test can be conducted before discharge from the hospital. This test does not harm the baby and takes a minute to do. The test helps in early detection of hearing loss which helps in early and timely intervention which is necessary in congenital hearing loss. A child can learn to talk only if he/she hears speech ! After a certain age the brain looses the ability to understand heard speech and hence it is very important to treat hearing loss at the earliest. Ideally the rehabilitation must be done before 2 years of age and this is possible only if there is early detection. Nowadays this test is routinely done before discharge from the hospital.

 

Cochlear Implant Clinic Cochlear implants may help people with severe or total hearing loss in both ears who do not get any benefit from hearing aids. The cochlear implant plays the function of the cochlea or organ of hearing. External sound is converted to an electric impulse and is then directly sent to the nerve of hearing which then carries to the brain. The team of professionals at GOOD ‘H’EARS is experienced in Candidacy ( That is deciding which patient requires an implant ) as well as in providing post implant therapy.

 

BEHAVIOURAL AUDIOMETRY / FREE FIELD TESTING / CONDITIONED AUDIOMETRY … are other modalities used to assess hearing in children. Along with this various other modalities and tests are used to assess hearing.