High scoring Hearing Evoked Potential Examination

The upstairs is pretty complete, I'll add a little bit.

There is also a situation that your daughter is only more than 3 months old, some children may be stunted, so the hearing will be a little worse, according to what you said, it is recommended that you go to ABR or ASSR examination when the child is 5 months or 6 months old, to see if the hearing has risen, of course, if your child belongs to this situation, even if the hearing rises, it will not be as good as normal children's hearing, there will still be hearing loss. And after all, this is an objective examination, there are many objective factors that will affect its accuracy, the most important thing is to rely on parents to observe the child's auditory response, such as the sound of firecrackers outside the door, whether the loud closing sound will wake up, and so on. Under normal circumstances, it can be diagnosed when it is old, and if it is diagnosed with congenital hearing loss, there is no way to do it with current medical technology, but only to intervene.

Wear hearing aids early (within 6 months) and start language training early. Even if a cochlear implant is to be implanted, the indication is that there is a 6-month history of wearing hearing aids, and the hearing aid is not effective or very effective. After all, the cochlear implant is invasive, and the success rate of the operation is not 100%, the extracorporeal part of the cochlear implant is much larger than the hearing aid, and the first case of cochlear implantation is less than 20 years ago.

It is recommended to communicate with your doctor more often. I don't know if you are a ** person, Zhejiang University of Traditional Chinese Medicine has an audiology major, which is specialized in listening teaching and research, you can communicate with the teachers in the school.

1.ABR is an objective method of detecting hearing, that is, to give the ear a certain sound, to see how the brainstem and hearing-related potential changes, to preliminarily assess the level of hearing. At present, many provinces in China have legislated that newborn children should be screened for hearing, mainly two examinations:

ABR and otoacoustic emissions. Now there is a newer and more accurate way, that is"Multi-frequency steady-state evoked potentials", the principle is basically the same as ABR, though"Multi-frequency steady-state"Hearing levels at individual frequencies can be assessed, while ABRs have no frequency characteristics and can only roughly represent hearing levels of 1 4K Hz. So if you have the opportunity, you can do this test to learn more about your hearing.

2.According to the ABR assessment, your child should have hearing problems (moderate to severe). Further investigation of the cause should be done, such as a detailed ear examination, imaging tests (MRI, CT of the brain, ear), etc.

Those with hereditary deafness are welcome to be genetically diagnosed, but this has to go to the 301 Hospital in Beijing.

3. Treatment: It is necessary to clarify the causes of hearing problems, such as whether there is a lack of oxygen at birth, whether there are malformations in the ears (including the outer ear, the middle ear, and the inner ear), and whether there is a family deafness genetic disease. This can be based on the reason**.

Early intervention** is generally recommended, otherwise it will affect the development of the speech center and lead to deafness. Sensorineural hearing loss caused by multiple reasons, if other methods do not work well, cochlear implantation can be performed.

Hope it helps. Encourage you, the main reasonable**, she can still live a normal life.

WHO (World Health Organization) standards state:

mild deafness 26-40db;

moderate deafness 41-55db;

moderate to severe deafness 56-70db;

severe deafness 71-90db;

Extreme Deafness" 91db.

Your daughter is 65dB on her left side and 55dB on her right side, and she may be moderately to severely deaf, and more severe on the left (left, written severe).

But one test is not enough, and if you do it again in another hospital, maybe your development will be a little slower.

I can't see too clearly, the auditory evoked potential instrument, the meaning of the latent period.

Marked wave table zhi

It shows the time it takes for the electrical signal to reach the position and capacity of the electrical signal in the intraneural pathway.

The I wave is probably just coming out of the cochlea, the auditory nerve, and at 80db intensity a normal person should be elicited at about the time.

The approximate location of the III wave is at the upper olive nucleus (pontine) intensity of 80dB in a normal person, and the time of elicitation is approximately in.

The position of the wave is about 80db at the hypothalamus position (midbrain), and the normal person should be eliciting the time approximately.

Due to the weak electrode signal acquisition, the position behind the five waves is generally not referenced, and the time of the five waves is mainly subject to the extraction time.

To put it bluntly, the former is to check the auditory transmission pathway, and any lesion in any link may lead to hearing impairment, and the latter is to check the cochlear function to see if there is any damage to the cochlea.