ABR / BERA TEST (HEARING TESTS)

Bera / Abr test is done in two ways;

1. Clinical Bera test / ABR test

Although the device changes according to the brand model, I-III-V within the limit of + - 10 dB from 10 dB to 110 dB. It gives information about the location of the waves, which gives information about hearing and hearing pathways in the clinic.

Private hospitals performing Bera test or state hospitals performing Bera test are limited in Istanbul.

Our hospital is the pioneer and the first hospital among the private hospitals performing Bera test in Istanbul.

The objectives of the Clinical Bera test / ABR test are presented below for your information.

1-Hearing level detection (in children with suspected speech retardation)

2-Ms (Multip sclerosis) for differential diagnosis during diagnosis or treatment.

3-Pontocerebellar corner (PSK) tumor diagnosis or treatment process (chemotherapy-radiotherapy) for differential diagnosis.

It is used for hearing detection in patients with 4-Dementia / Alzheimer's.

MATTERS TO BE CONSIDERED WHEN THE CLINICAL BEER TEST / ABR TEST

• First of all you need to know; The process we will do is definitely not a radiological procedure, it does not harm your child.

• There is no cut operation.

• Have your child take a bath the day before the appointment date; Clean the ear and forehead, especially behind the forehead.

• Leave your child sleepless when coming to your appointment and do not allow him to sleep while coming on the road.

• Have your breakfast at the hospital.

• When you come to our hospital, make sure that your child's skin is cleaned before sleeping.

• Bring with you any previous tests.

• Bring diapers or food if your child is using it when coming.

• A small pillow you may need to shake your child

• It is recommended to bring a blanket.

• If your child is sick before the appointment date (Influenza, catarrhal, inflammation of the middle ear), call the hospital and give information.

The periodic screening we performed in the newborn period cannot replace the Clinical Bera test / ABR test.

2- SCANNING:

In the test, which is performed in newborn babies, a positive or negative response is obtained if the hearing is given and the presence of hearing is within the + - 5 dB limit of the stimulus. The reason for making up to 1 year old is that the devices are adjusted accordingly.

In newborns, high frequency tympanometry must be performed in hospitals that perform Scanning Bera ABR; otherwise, unnecessary screening consists of referral from Bera to clinical Bera test.

HOW TO DO A NEW BORN HEARING SCAN?

When the baby is in its natural sleep, a special sound is sent to the inner ear with a small probe placed in the outer ear canal and the response of the outer hair cells in the inner ear to the sound is measured. This process does not harm the baby and does not hurt. It is a simple measurement that takes a few minutes. Hearing is evaluated objectively, the baby does not need any participation. Hearing test can be done for every baby who has completed 6 hours after birth.

WHY SHOULD I HAVE MY BABY HEARING SCAN?

The first condition for normal speech development is normal hearing. Hearing for a child and learning to speak are basic requirements in order to communicate and improve their skills by playing games. As soon as children are born, they start hearing and listening. As they learn to speak, they imitate the sounds they hear in their environment.

According to research, 2 to 3 out of every 1000 healthy newborns are born with hearing loss.

Hearing loss negatively affects the child's cognitive, mental, social and physical development. Early diagnosis of hearing loss is critical to speech development, quality of life, and academic success. Early diagnosis, deaf children also provide normal or near-normal speech and language development.

For this reason, it is recommended that every newborn baby is examined by the hearing screening test within the first month, preferably before discharge from the hospital, and whether it is at risk for hearing loss.

WHAT TO DO IF MY BABY STAYS FROM THE HEARING TEST?

It is common for the baby to fail the first test. The reasons why babies stay in the first test include the presence of fluid in the middle ear or narrow outer ear canal. If the baby cannot pass the first test, the screening test is repeated two weeks later. If it fails again, it will be repeated two more weeks later.

If the baby remains three times from the screening test, a detailed hearing assessment is performed with ABR (Auditory Brainstem Response, Auditory Brainstem Behavior), an advanced audiological test.

HOW IS THE ABR (BERA) TEST PERFORMED?

Auditory Brainstem Behavior (ABR / BERA) test is objective, that is, the most valid electrophysiological method that does not require the participation of the baby and is widely used in audiological diagnosis. Newborns can usually be done in their natural sleep. It is performed under sedation to babies and older children who cannot be done in their natural sleep. ABR treatment does not harm the baby and does not hurt. A special audible stimulus is sent with small electrodes placed on the baby's forehead and behind the ears and a headset attached to the ears, and the hearing nerve

Hearing thresholds are determined by recording the answer.

If babies who are healthy and have no risk factors for hearing loss remain three times from the screening test, the ABR test is applied. Infants who have remained in the newborn intensive care unit or have other risk factors for hearing loss should be evaluated with ABR in addition to the screening test.

What are the risk factors for congenital hearing loss?

· Family hereditary, childhood-born hearing loss story

· Babies born earlier than 34 weeks

· Babies with a birth weight less than 1500 grams

· Infections such as measles, rubella, syphilis, CMV, and toxoplasma during the mother's pregnancy

· Developmental abnormalities in the face and head of the baby, auricle and ear canal

· Increased jaundice values ​​in the blood to require blood exchange

· More than 5 days adherence to the lung breathing machine

· Hearing loss along with other findings to suggest a syndrome

· Type 2 neurofibromatosis and neurodegenerative disorders

· Cleft palate, cleft lip deformities

Even if the babies pass the hearing test in the newborn period, especially those with risk factors, hearing loss may develop in the future. For this reason, it is useful for parents to closely follow their child's hearing and speech development and to consult a doctor if they have concerns.

WHAT IS NORMAL HEARING AND SPEECH DEVELOPMENT?

Behaviors you should expect from your child in terms of hearing and speech development at certain age ranges:

Hearing and Understanding

Talk

0-3 Months

· Does it jump when it hears a sudden sound?

· Will he be silent or laugh when you talk to him?

· Does it recognize your voice and be silent if it is crying?

· Does it increase or decrease the absorption behavior when it hears sound while breastfeeding?

0-3 Months

· Does it sound like 'agu-gugu' expressing its satisfaction?

· Do they cry in different ways to describe their different needs?

· Does he laugh when he sees you?

4-6 months

· Does it turn your eyes in the direction the sound is coming from?

· Does it respond to the changing tone of your voice?

· Does it notice toys that make noise?

· Does music attract your attention?

4-6 months

· Does it produce 'babaldama' sounds that are more like speech and contain 'p, b, m' sounds?

· Does it make a sound to state its satisfaction and complaint?

· Does it make giggle-like sounds when left alone or playing with you?

7 Months-1 Age

· Does he like 'Ce-e' style games and rhymes?

· Does the voice turn and look in the direction it came from? Does he listen when he speaks to him?

· Does it recognize the names of simple objects such as 'glasses, shoes, milk'?

· "Come here." "Do you want some more?" Has it begun to respond to your simple requests like?

7 Months-1 Age

· Has his babing started to be composed of long and short group voices?

· Has she started using speech or some sounds other than crying to attract attention and keep her attention?

· Does it imitate different speech sounds?

Does it have 1 or 2 words, although it is not very clear? (Such as 'bye-bye', 'father', 'mama').

1-2 Age

· Does it show some parts of your body correctly when asked?

· He performs simple orders such as "roll the ball", "kiss the baby," "where is your shoe?", Understand simple questions?

· Does it listen to simple stories, songs and rhymes?

· When you show pictures by asking what is in a book, does it point to some objects correctly?

1-2 Age

· Does he say more new words every month? (For example, when you are 18 months old, is there about 5-20 words?)

· Does it use some 1-2 word questions? ("Where's the cat?" "Dad's gone?" "What is this?").

· Does it use 2 words side by side? (such as "mother book," "no food," "more water").

· Does he use many different consonants at the beginning of the words?

2-3 Years

· Can he understand the difference in meanings such as "go-stop," "in-on," "big-small," "up-down"?

· Can it fulfill a request consisting of two parts? (Such as "Take your book and put it on the table.").

2-3 Years

· Can he say the name of almost everything?

· Does it use 2-3 word sentences to speak and to ask for something?

· Is his speech generally better understood by those who know him closely?

· Does he say something by name when he wants something?

3-4 Years

· Does it hear you when you call from another room?

· Does the family listen to the sound of the television or radio at the same height as the others? Or does he need to turn up his voice more?

· "Who ?," "Why ?," "Where ?," "How?" understand simple questions like?

3-4 Years

· Can she tell something that happened in her kindergarten or at a friend's house?

· Can anyone other than family members understand their speech?

4 or more

· Does a frequently use sentences of more words?

· Can he speak easily without repeating syllables or words?

4-5 Age

· Can short stories attract attention and answer simple questions about that story?

· Does it understand most of what is said at home or at school? Or is it difficult to understand?

4-5 Age

· Are the voices he makes as clear as that of his other peers?

· Can he elaborate sentences? (For example, "I like to read my books."

· Can he stick to the subject while telling a story?

· Can it easily communicate with other children and adults?

· Does it correctly say all sounds except a few sounds (eg l, s, r, v, z, k, sh)?

· Do family members use the same language rules (grammar) as others?

WHY ARE THE ABR TEST PERFORMED IN MS?

MS is a degenerative autoimmune disease of the central nervous system. It is an immunological disorder triggered by a virus in people who are genetically predisposed to MS. In inflammatory ironization, plaques and random patches called the results occur in more than one area of ​​MSS white matter. MS Caucasians and women have been observed more. MS is five times more common in temperate climates. Types of MS appear benign or malignant, repetitive.

With the ABR-BERA test, brainstem and VIII CN lesions or degenerative changes along the auditory pathway are detected. Visual impairments can occur early. Fatigue, spasticity and weakness are common in extremities with exertion or high temperature. MS patients experience mild cognitive difficulties, such as concentration, distraction, poor memory and difficulty in decision making. Other common symptoms include dizziness, fainting, spatial orientation disorder. Depression, bladder and bowel control, and sexual problems are common. 94%; normal hearing occurs. Report up to 40% background noise hearing difficulties with normal audiograms. The tympanometer test is usually normal, except for acoustic reflexes. Speech discrimination scores are lower than those indicated by pure sound thresholds, especially when the ear with mask noise is not given. As the ABR-BERA test results often show abnormalities, the ABR-BERA test is very useful in the diagnosis of MS. ABR-BERA test is used for diagnosis and control.