Respuesta auditiva de tallo cerebral y otoemisiones

Neuro Audio Screen

 

Sistema portátil para screening auditivo y pruebas de diagnóstico

  • Solución todo en uno:
    • Transiente evocado de emisiones otoacústicas (TEOAE) para screening auditivo
    • Producto de distorsión de emisiones otoacústicas (DPOAE) para screening auditivo
    • Respuesta auditiva del tallo cerebral / audiometría de la repuesta evocada del tallo cerebral (ABR / BERA) para screening profundo
  • Dispositivo con capacidad de desarrollar técnicas en modo especializado
  • Los exámenes pueden ser exportados instantáneamente a la base de datos del instituto médico vía Bluetooth
  • Los resultados pueden ser impresos en una impresora laser portátil

Por qué es importante??

La hipoacusia es diagnósticada en tres de cada mil niños nacidos, lo cual representa el doble de la frecuencia del sindrome Down y diez veces mas que la fenilcetonuria.

The problem of diagnostics and treatment of hearing loss and deafness in this special category of patients is actual both in medical and social relations. Often the visual examination and other traditional diagnostic techniques of hearing impairment detection do not reveal the problem until 1 to 3 years of age — which is well beyond the critical period (6 months) for healthy speech and language development.

However, if a hearing impairment is identified and treated in its early stages, studies have shown that the child’s speech and language skills will be comparable to his or her normal-hearing peers. For these reasons, hearing screening at birth and routinely throughout childhood is extremely important. Timely and correct diagnosis provides an opportunity to start the hearing rehabilitation and child integration to speech environment as soon as possible.

What Should be Done?

Earlier to solve the specified problem, the hearing screening of newborns and babies was applied. It was based on the consideration of risk factors with the further examination of babies, included in the risk group, in specialized establishments. However, at such approach 50% of children drop out of sight.

The only possible solution of the problem concerning early detection and rehabilitation of children suffering from hearing loss and deafness is introduction of hearing screening with the use of objective technologies in maternity hospitals and maternity departments of patient care institutions.

At present time, the fundamentally new so called objective techniques of hearing study are developed and applied in clinical practice, they are computer audiometry by auditory brainstem response (ABR) and recording of otoacoustic emission (OAE). It allows performing hearing study in any age, even in newborns.

Neuro-Audio-Screen Advantages

Simple and fast workflowSimple and fast workflow

Device Usability

The whole front panel of the device is 4.3″ touch screen. The menu with the list of available tests will be displayed on the screen after device switching on. You should insert OAE probe into a patient’s ear properly and start the test by touching the screen two times. The program will inform you if the OAE probe is inserted incorrectly. The test will be performed in automatic mode if everything is correct. After the test the program will give “PASS” or “REFER” result. It is quite simple. Detailed video guide supplied with Neuro-Audio-Screen will help you to master the program operation.

The system is real easy to use even for untrained medical personnel including nursing staff.

Wireless Bluetooth Interface

Wireless Bluetooth Interface provides the opportunity to print exam results on wireless printer and export data saved in the device memory to the external computer with installed Neuro-Audio-Screen Manager. The program is supplied free with the device.

Neuro-Audio-Screen Manager Software

Neuro-Audio-Screen Manager works on Windows-based computer. Using this program you can prepare a list of patients you plan to examine, export exams to the computer database, print results or export to Neuro-Audio.NET software.

Compatibility of Data Format with Neuro-Audio Diagnostic OAE and EP System

Compatibility of data format with Neuro-Audio (version 2010) Diagnostic OAE and EP System provides continuity of diagnostic information obtained during hearing screening and during specialized diagnostic research.

Customizable Settings

You can change test settings using the configuration menu. For example, you can use different modes of OAE test: "Screening", "Noisy (screening)", etc. It helps to customize settings quickly in order to perform any hearing exam starting from screening in a noisy room and up to expert study in a specialized hospital.

 

Neuro-Audio-Screen Features

TEOAE test resultsTEOAE test results

OAE

The otoacoustic emission (OAE) test is an accurate, informative and time-saving tool which is simple to perform. It is considered that if OAE is recorded, an infant’s hearing is not impaired. In case OAE is not recorded, it is an indication to see an audiologist to perform the further examination of an infant.

Otoacoustic emission is the acoustic response which reflects the normal functioning of the auditory receptor. These are low-intensity sounds generated by cochlea which can be recorded in ear canal with the use of highly sensitive microphone. These sounds are the result of active mechanical processes running in the organ of Corti, namely in outer hair cells.

OAE is intended mostly for screening as it takes little time. It is very important also because the long-term immobility of an infant is sometimes impossible. Several types of this technique exist, but in practice the most often used ones are transient evoked otoacoustic emission (TEOAE) and distortion product otoacoustic emission (DPOAE).

ABR / BERA

When you use only OAE technique for screening, patients with normal cochlea function but with possible retrocochlear impairments (for example, with auditory neuropathy) drop out of sight. The ABR technique does not have such drawback.

The essence of this technique is the acquisition of the electrical potentials evoking in different structures of auditory system in response to auditory signal which defines its objectivity.

Auditory brainstem response (ABR) or brainstem evoked response audiometry (BERA) is widely used in audiology.

The advantages of this test:

  • ABR can be recorded in newborn from first hours of life including premature infants and newborns suffering from central nervous system diseases.
  • ABR acquisition is noninvasive (safe and harmless).
  • ABR acquisition provides objective information concerning the state of auditory pathways.
  • ABR characteristics are stable and do not depend on a patient’s state (whether she/he is awake or asleep, this sleep is natural or drug-induced).

Besides, ABR screening has the following advantages:

  • The stimulation frequency is increased up to 93 Hz, it allows making 8000 averagings per less than 2 minutes.
  • The test has several automatically calculated "Pass" criteria. As soon as these criteria are checked, the test is stopped automatically and "PASS" or "REFER" result is displayed on the screen.
  • To record ABR, the same OAE probe as for OAE acquisition is used.

During two-stage hearing screening, in case an infant did not pass OAE test, a doctor should make ABR test to specify the diagnosis.

DPOAE test processDPOAE test process
ABR test resultsABR test results

 

All the techniques are performed in automatic mode. The checkup results are displayed on the screen immediately and if the thermal printer with wireless Bluetooth interface is available (is not included in the base delivery set), it is printed on the thermal paper. All these possibilities are very important for the screening.

Two delivery set variants are available: Neuro-Audio-Screen and Neuro-Audio-Screen/OAE
All devices are calibrated at Neurosoft facilities.

  Available Techniques
ABR TEOAE DPOAE
 
Neuro-Audio-Screen
 
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Neuro-Audio-Screen/OAE
 
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“Neuro-Audio-Screen” Delivery Set“Neuro-Audio-Screen” Delivery Set

Neuro-Audio-Screen Delivery Set

Neuro-Audio-Screen Extra Delivery Set