Bera Test


Does your child remain unresponsive when you call? Did you notice that your child is not affected by the sounds that bothers you? Do you still worry about the tests you have done so far, even though your child cannot be diagnosed with hearing loss?

Hearing loss is a problem which is difficult to notice especially in infancy, as there is no visible problem. This is a possible hearing loss and delayed the process of referral to a specialist and hence prevents early diagnosis. In this sense, Private Cihan Hospital offered an application which is not found in private hospitals in our province to the service of the people of İzmit.


BERA TEST is a method used in mentally handicapped and unconscious people in patients who are thought to have hearing loss but are difficult to detect. BERA TEST, an objective test that evaluates hearing from the brain stem, gives a reliable result close to 100% when interpreted correctly.

Bera test, which is the most advanced method in hearing screening tests, measures the hearing with the help of electrodes that are affixed to the head during sleep or drowsiness.


How is Abr (Bera) Test Done?


Auditory Brainstem Behavior (ABR / BERA) test is the most valid electrophysiological method which is objective, which does not require the participation of the baby and is widely used in audiologic diagnosis. Newborn babies can usually be made in their natural sleep. Babies and older children, who cannot be done in their natural sleep, are under sedation. ABR does not harm the baby and does not hurt the baby. Small electrodes placed on the baby's forehead and behind the ears, and a special acoustic stimulus are sent to the ears and the hearing thresholds are determined by recording the response of the auditory nerve to the stimulus.


ABR test is applied if the babies who are healthy and have no risk factor for hearing loss stay three times in the screening test. Neonatal intensive care unit In addition to the screening test, babies with other risk factors for hearing loss or hearing loss should be evaluated with ABR.


What are the risk factors for congenital hearing loss?


Family hereditary, childhood hearing loss story

Babies born before 34th week

Babies with birth weight less than 1500 grams

Infections such as measles, rubella, syphilis, CMV, toxoplasmosis during mother's pregnancy

Developmental abnormalities in the baby's face and head, in the auricle and in the ear canal

Blood changes in jaundice to increase blood demand

Staying on the lungs breathing machine for more than 5 days

Hearing loss with other findings suggestive of a syndrome

Type 2 neurofibromatosis and neurodegenerative disorders

Cleft palate, cleft lip deformities

Even if the babies pass the hearing test in the neonatal period, hearing loss may develop in those who have a risk factor. For this reason, it is useful for parents to closely follow the development of their children's hearing and speech and to consult a doctor if they have concerns.