Mute disease or not speaking state may be caused by congenital, language disorders or due to the body's internal function disorders. Some people do not say due to depression disorders. Most people who are dumb are due to deafness from an early age. A side effect of drugs, trauma, infections or disease can cause loss of hearing sensation leading to loss of language ability.
Pathological deaf and deaf: Pathology: Peracent deaf mute may be due to genetic cause or due to the cause of pregnant mother in the first three months or can also combine both Just by genetics and suffering. Mute is the consequence of early deafness in children, because children are deaf right from birth, so they do not receive audio signals so they cannot speak and cause mute.
Causes of Dumb's disease
There are many causes dumb disease in children :
Genetics: The deaf and dumb gene is located on normal chromosomes, genetic genes or diving genes can lead to deafness. Scientists have discovered a kind of deaf gene and the name of the PDS gene. No diving gene), their children will be born normal. Although the child is not deaf, the diving gene is heterosexual, and if the person wearing a diving gene in the form of a family building is a family of the same person who carries the same diving gene (homozygous or heterozygous), then their children Born will be deaf and dumb.
Mutations related to 4 genes GJB2, GJB3, SLC26A4, 12S RRNA.
Due to the congenital deafness
Damage to the body parts related to mention such as: tongue, throat, sound wire ...
Broca trauma (region related to language production).
Causes of mute in children are often born with deaf babies but not detected in time, causing congenital deafness.
Symptoms of Dumb's disease
Infants up to 3 months of age: Babies do not move limbs, cry or react with unexpected noises.
Children from 3-6 months of age: irresponsible of the parents' voice, a voice but cannot determine the voice direction.
Children from 5-9 months: Unable to understand the intention of adults, for example, her mother waved her hand to say goodbye but she did not react to follow.
Children 10-12 months: At this age, the baby starts babbling to speak the first sounds like parents, mothers, grandparents ... or from other simple words. P>
In addition, children have no reaction to sound or have no reaction when listening to their name. When children see these signs, they need to think that they may be born in congenital deaf or poor hearing ability is one of the causes of congenital mute.
People at risk for Dumb's disease
Premature babies: The ear starts to be formed when it is about eight weeks old and from about 18 weeks, the inner ear bone and the nerve ends have been fully developed until the 24th week of The child's hearing mandarins are fully developed so that they can hear all the sounds such as the sound of the mother's heart beating or the sound of blood flow regularly through the umbilical cord, ... the child may be startled by the loud noise. The sound works as a baby's information channel with the external environment.In the 25th week, the baby begins to listen to the voice of the mother and the external voices can also recognize the voice of the voice Mother is 27 weeks old. However, the sounds may be strangled because the baby's ears are still covered with sebum as a coat that protects the skin from cracking from amniotic fluid. Babies can also move or change their posture in the womb to respond to sudden sounds such as the sound of the closed door or the horn ...
Mid -inflammatory disease: The most common is in young children. Including two main types: Pus acute otitis media if well handled will not leave no sequelae. Heavy deafness for children.
Meningitis: Damage to brain nerve: In VMN, pus can damage the nerves of the brain nerves such as wire II, III, IV, VI, VII, VIII ... Including wiring VIII (Vestibular) dominates hearing when meningitis causes damage to VIII wires or branches of children's ears may be deaf or due to treatment of antibiotic toxic antibiotics VIII as such as Aminoglycosid antibiotics: Gentamycin, Streptomycin, ... Especially in children the sequelae are often heavy and difficult to treat.
Smoking mother during pregnancy: According to many studies, it has shown toxins from cigarette smoke, especially nicotine and carbon monoxide, can be followed by the bloodline of the mother to pregnancy. Nhi causes serious effects. Tobacco smoke contains more than 7,000 types of toxic chemicals, these substances, especially nicotine and carbon monoxide can follow the bloodline of the mother to the fetus, causing serious effects if the mother accidentally or intentionally in contact. With cigarette smoke. Nicotine and CO in cigarette smoke are the main substances that affect the embryo in that there is a risk of congenital deafness right from the beginning of the baby, the risk of deafness caused by nerve is 3 times higher than that of babies. Born from mothers who do not have a habit of smoking or not often exposed to smoke. Many studies also show that cigarette smoke affects the sound processing ability of the brain, the child's hearing organs are very vulnerable to nicotine when the sound processing is affected. to develop the language of children. In addition, premature birth leads to an increase in the risk of infection infection that causes meningitis, otitis media, nerve damage, including VIII wires that cause deafness.
In addition, the fetus listening to music at a high frequency from 120dB can cause damage to the auditory nerve cells that affect the child's hearing function, even if Open at a low level of 90 dB for more than 8 hours is also harmful to the fetal hearing. There are many risk factors leading to congenital deafness such as early pregnancy, pregnant mothers are not adequate nutrition, causing malnutrition, premature babies, respiratory infections, frequent contact. With high frequency sound ... leading to deafness is the cause of dumb disease.
Prevention of Dumb's disease
Avoid risk factors such as: not smoking during pregnancy as well as contact with smoke, not for the fetus to listen to music in the womb with high frequency.
Screening for children: According to the American Pediatric Academy (AAP) recommends that children should check the hearing at the following times: When they start school, at 6 , 8 and 10 years old, at least once when children high school, once during high school
Diagnostic measures for Dumb's disease
Diagnosis of dumb disease is mainly based on children's clinical manifestations without taking other subclinical tests.
Dumb's disease treatments
Normally, children with hearing loss due to pathology such as otitis media or congenital hearing impairment, post -encephalitis sequelae, meninges, permanent lesions, children cannot Hearing recovery and lifelong disability. With these cases, when detected early, children will be supported to wear players, hearing aids or electronic earplugs to be able to learn to listen, learn to speak and speak Soon and developed as usual, the bigger the intervention becomes more difficult because there is a nervous region that controls the listening - speaking. If the area is not stimulated in the first 2-3 years of life will be developed. The judgment if performing electronic ear snails after 7 years of age is not valid.
Read lips and sign language: A high percentage of hearing impaired people can learn other ways of communication in which lips and symbol language can be replaced or added. For oral communication.
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