What is the difference between sensorineural hearing loss and conductive hearing loss?

For sensorineural deafness and conductive deafness, their causes are different, the symptoms are different, for inductive neural deafness, it is generally mainly the auditory nerve, and the cochlea has relative problems, and conductive deafness is generally mainly a series of abnormalities in the channel of sound conduction.

The senescence of the auditory system is the result of tissue senescence, and the senescence of cells may be related to the accumulation of metabolic waste products in the cells that affect the activity of the cells. Conductive hearing loss refers to hearing loss caused by the obstruction of the sound transmission and voltage transmission device, which affects the conduction of sound waves.

Induction-neural hearing loss is caused by damage to the nerves in one's ear that are unable to transmit sound; Conductive deafness refers to the aging of ear cells, which accumulates certain metabolic wastes, which affects the transmission of sound.

Since pure-tone hearing threshold examination is mainly reflected by audiogram, the difference between the three types of deafness is mainly observed by audiogram.

1) The main characteristics of conductive deafness audiogram are: the bone conduction curve is normal or close to normal, the air conduction hearing loss is between 30db and 60db, the curve is reduced, and the loss is severe at low frequency.

2) The main characteristics of the audiogram of sensorineural deafness are that the hearing curve is gradually decreasing or steeply decreasing, and the qi and bone conduction are declining at the same time, and the difference between the two is less than 10db, and the high-frequency hearing loss is more serious.

3) The main feature of audiogram in mixed hearing loss is empty grinding: both air conduction and bone conduction curves decrease, and the air conduction curve is lower than that of bone conduction curve.

Sensorineural hearing loss refers to deafness caused by a lesion of the sensorineural nerve or central nervous system in the inner ear. Its features are as follows:

1.Difficulty hearing sounds: People with sensorineural hearing loss often have difficulty hearing sounds, especially high-frequency sounds, such as those of women and children. This is because the nerve in the inner ear is damaged and cannot transmit sound to the brain.

2.Need to increase the volume: People with sensorineural hearing loss often need to raise the volume to hear clearly. They may turn up the volume of devices such as televisions, radios, or ask others to speak loudly.

3.Hearing loss: People with sensorineural hearing loss often have a gradual hearing loss and difficulty recovering from it. As the condition worsens, the patient may lose their hearing completely.

4.Confusing speech: People with sensorineural hearing loss may confuse certain voices, such as:"p"with"b"、"s"with"th", this is because they can't hear the nuances of speech.

5.Tinnitus: People with sensorineural hearing loss may experience symptoms of tinnitus, which is a constant noise or ringing due to damage to the sensorineural nerve in the inner ear.

6.Other symptoms: People with sensorineural hearing loss may experience symptoms such as dizziness, nausea, and vomiting due to damage to the inner ear and balance nerves.

In summary, sensorineural hearing loss is characterized by difficulty hearing sounds, the need to raise the volume, hearing loss, confusion of speech, tinnitus, and other symptoms. If you suspect that you have sensorineural hearing loss, you should seek medical attention and receive professional advice**.

1. High-frequency hearing loss: It often occurs in patients with sensorineural hearing loss, and it is difficult for patients to hear high-frequency consonants such as C, S, X, Q, J, etc. Poor comprehension of speech: often feel that others are talking slurred.

2. Rejuvenation phenomenon: patients with neural deafness have rejuvenation phenomenon. They may not be able to hear a moderate sound, but if the sound intensity increases a little more, they find it unbearable.

3. Tinnitus: Patients with sensorineural deafness often have tinnitus, which mostly precedes deafness. Tinnitus is a high-pitched sound, often unilateral, sometimes both but only the heavier side is noticed.

4. Vertigo: Delusion due to vestibular lesions in the inner ear. During vertigo attacks, the patient often feels that the scenery around him is rotating.

The symptoms of sensorineural hearing loss are mainly related to it**. For example:

1. If it is sensorineural deafness caused by drug-induced factors (i.e., drug-toxic deafness), it may lead to hearing loss in both ears, accompanied by tinnitus, vestibular function decline, vertigo, gait instability and other symptoms.

2. If it is sensorineural hearing loss (i.e., presbycusis) caused by age factors, it may lead to insidious and slowly progressive bilateral sensorineural hearing loss, and most patients will be accompanied by high-profile tinnitus, and a few patients will have intermittent Bisun noise or persistent pulsatile tinnitus.

3. If the regret is sensorineural deafness caused by auditory neuropathy, it may lead to hearing loss in both ears or one ear, and the patient is particularly unable to distinguish the content of the other party's speech, that is, only hear its voice and not distinguish its meaning, which is especially prominent in noisy environments.

4. If it is sensorineural hearing loss (i.e., hereditary hearing loss) caused by hereditary factors, the patient may not be able to hear sound at birth, and it will be accompanied by loss of speech ability.

Sensorineural deafness refers to the lesions located in the hair cells, auditory nerves and auditory centers at all levels of the auricular spirals, which cause impairment of sound perception and nerve impulse conduction, and cause sensorineural deafness. Common diseases are as follows: (1) Otosclerosis:

Unlike tympanosclerosis, otosclerosis is a condition whose cause is still unknown. The disease that occurs when the dense bony plates of the inner ear bone are labyrinthine and replaced by sponge-like new bone is the same as the wall of the house that has been replaced by sand and gravel by cutting corners, but this osteoporotic lesion of the ear is only the first stage of the disease. Later, it will develop further, and the bone has a large amount of fibrous tissue proliferation and calcification, just like cement in the open air, or it will harden before long, this stage is also called the sclerosis stage, so it is called otosclerosis.

The consequence of ear sclerosis is structural changes in the inner ear, deformation and necrosis of nerve cells, and eventually hearing loss, which is mostly bilateral and continues to worsen. Hearing loss is often sensory. (2) Meniere's disease:

It is a disease with episodic vertigo, fluctuating deafness and tinnitus, and a feeling of fullness in the ear as the main symptoms, caused by the edema of the inner eardrum labyrinth, which is generally unilateral and more common in young adults. (3) Congenital deafness: It can be caused by genetic pre-sale factors, or it can be caused by viral infection or other damage to the mother during pregnancy, so that hearing loss occurs after the fetus is born.

4) Presbycusis: It is caused by the degeneration of hearing organs in the process of human aging, so it is often found that the hearing of the elderly is not as good as that of young people. (5) Deafness caused by infectious diseases:

A variety of acute and chronic infectious diseases can cause sensorineural hearing loss. Such as polio, diphtheria, typhoid fever, etc., but now they are rare. (6) Deafness caused by some other diseases of the whole body:

Hypertension and arteriosclerosis are the most common. This is caused by a disorder in the blood supply to the inner ear. Others, such as diabetes and hypothyroidism, can also cause hearing loss.

7) Drug toxicity deafness: It has been clear that aminoglycoside antibiotics such as streptomycin, gentamicin, and amikamycin have a damaging effect on the human ear, and can cause sensorineural hearing loss. (8) Traumatic deafness:

Traumatic head injuries leading to labyrinth** and basilar skull fractures can damage the inner ear and cause hearing loss. (9) Sudden deafness: It is a sudden onset of deafness disease, and the cause may be related to the blood supply disorder of the inner ear and viral infection.

There are many other causes of sensorineural hearing loss. According to the location of the lesion, sensorineural hearing loss can also be divided into two categories: sensorineural hearing loss and neural hearing loss. Sensory hearing loss is hearing loss caused by pilocytic lesions.

Neural hearing loss is hearing loss caused by lesions of the auditory nerve and conduction pathways.

Neural hearing loss can be caused by disease or improper medication, and it covers a wide range of diseases, and it is also a disease that children often suffer from. Neurological deafness in children is closely related to the child's constitution, resistance, drugs used, and physical health.

1. Infectious deafness caused by infectious diseases such as meningitis, measles, typhoid fever, etc.

2. Toxic deafness caused by continuous use of antibiotics such as streptomycin, kanamycin, gentamicin, etc.

3. Detonation deafness caused by trauma or detonation, noise, etc.

4. Sudden deafness caused by viral infection or embolism of the inner ear vessels.

Hello, the most common causes of hearing loss in children are divided into congenital and acquired imbalance, congenital causes are genetic, mother medication during pregnancy, chromosomes, difficult to give birth at birth, jaundice, normal hearing at birth, there are many reasons for hearing loss in the later stage, otitis media, mumps, high fever and convulsions, drugs, trauma, etc. may cause hearing loss in children.

Hearing impairment caused by lesions of the outer or middle ear is called conductive hearing loss. External ear diseases that can lead to conductive deafness include ear embolism, atresia of the external auditory canal, inflammation of the external auditory canal, and stenosis of the external auditory canal caused by tumors.

Middle ear diseases that can lead to conductive hearing loss include: various acute and chronic otitis media, middle ear tumors, tympanic membrane trauma, ossicular fracture or dislocation, ear sclerosis, etc. Among them, otitis media is a common disease, especially in children.

The course of the disease can be acute, often accompanied by symptoms such as pain and fever, and requires immediate symptomatic treatment**; It can also be chronic. Chronic purulent otitis media is a chronic inflammation of the mucosa, periosteum or deep bone of the middle ear, which can be acute otitis media that does not heal, Eustachian tube obstruction, nasal nasopharyngeal chronic lesions, etc. Chronic otitis media can be divided into simple, bone ulcer, and cholesteatoma, with symptoms such as ear pus, hearing loss, earache and even abscess around the ear.

Hearing loss is associated with perforation of the tympanic membrane, disruption of the ossicular chain, or inflammation of the labyrinth. Sensorineural hearing loss, also known as neural hearing loss, refers to the lesions of the auditory nerve of the inner ear and the auditory center of the brain, which causes hearing loss and even hearing loss, often accompanied by ear whining; Neural hearing loss refers to lesions of the cochlea, auditory nerve, and auditory pathways. The lesion is located in the hair cells of the spiral, the auditory nerve or the auditory center at all levels, and the perception of sound and the conduction of nerve impulses are impaired, and the hearing loss caused by it is sensorineural hearing loss.

There are several common reasons: (1) Toxic deafness caused by the continuous use of antibiotics such as streptomycin, kanamycin, gentamicin, etc. (2) Sudden deafness caused by viral infection or embolism of blood vessels in the inner ear.

3) Infectious deafness caused by infectious diseases such as meningitis, measles, typhoid, etc. (4) Detonation deafness caused by trauma, detonation, noise, etc.

Deafness is divided into two categories: conductive deafness (also known as transverbal deafness) and neural deafness (also known as sensory deafness), and the difference between the two types of deafness can be compared to the machine. All the damage to the transmitter, receiver, and the first line between the two to the first machine, affecting the transmission of sound to the first machine is called a sound transmission failure, in the human body it is called a sound transmission failure, specifically in the human body refers to the eardrum, auditory joints, ossicular chain damage and affect the sound into the inner ear and cause deafness is called sound transmission deafness, such as congenital external auditory canal atresia, tympanic membrane perforation, ossicular bone destruction, ossicular chain interruption, fixation, otosclerosis, osmotic otitis media, etc.

Where there is a problem with the first movement, the failure to transmit the sound to the switchboard is called a sensory fault, which is manifested in the human body as a normal set of sound transmission mechanisms, but the hearing cells of the inner ear that receive sound are diseased, and the deafness is manifested, that is, sensory deafness. Such as drug toxic deafness, presbycusis deafness, noise deafness, detonation deafness, sudden deafness, etc.

Transductive deafness and sensory deafness can be distinguished by tuning fork test and audiometer. If the bone conduction of the tuning fork test is greater than or equal to the air conduction, it is called conductive or transductive hearing loss, and the bone conduction hearing threshold of the electroaudiometry result is lower than that of normal people, that is, neural deafness or sensory deafness.

Conductive hearing loss is a lesion in the outer ear that prevents sound from being transmitted.

Conductive hearing loss is a disorder in which sound conduction occurs.

Conductive hearing loss: It is caused by a lesion in the middle ear of the outer ear, which impairs the sound conduction process. Common causes of deafness include external auditory canal alignment, foreign body, inflammation, congenital atresia, acute and chronic purulent otitis media, acute and chronic non-purulent otitis media, congenital malformations, tumors, bullous myringitis, early otosclerosis, etc.

Sensorineural hearing loss: refers to the inability of the cochlear spiral apparatus to change sound waves into nerve excitation or the inability of nerves and their central pathways to transmit nerve excitation; or central lesions of the cerebral cortex that cannot distinguish speech, collectively referred to as sensorineural hearing loss.

The sound we hear is that the pinna collects sound into the external auditory canal, vibrates the tympanic membrane to drive the movement of the ossicular chain of the middle ear, converts the sound energy into mechanical energy, and the ossicular chain pushes the oval window to the lymphatic fluid of the inner ear for cutting movement, generating electrical signals transmitted to the brain through the central nervous system.

Depending on the location of the lesion: the transmission of conductive hearing loss occurs in the course of lesions, mainly in the outer and middle ear. It is usually found in external ear malformations, external ear canal infections, or otitis media. Inner ear function is normal.

Sensorineural hearing loss: lesions in the inner, outer and middle ear are good. Auditory hair cells, or auditory nerve damage, causing hearing loss, there is currently no way to **.