In fact it is the most common cause of hearing loss in young children. Almost one-half of these children will have three or more ear infections during their first 3 years of life (2). When fluid is present, the vibrations are not transmitted efficiently and sound energy is lost. Some examples are Down syndrome (abnormality on a gene), Usher syndrome (autosomal recessive), Treacher Collins syndrome (autosomal dominant), Crouzon syndrome (autosomal dominant), and Alport syndrome (X-linked). Causes of conductive hearing loss: the eardrum and ear canal. Blockage of the ear canal. The job of earwax is to clean and lubricate the ear canal, and it also provides some defence against infection. There are two types of earwax – and which you have is determined by your genes. This usually occurs in children when infection from a cold travels up the Eustachian tubes. These tubes connect the throat to the middle ear and are designed to equalise pressure. Perhaps you gave been exposed to loud noise. Although it is not common, some infants may have some hearing loss at birth. Birth defects that cause changes in the structure of the ear canal or middle ear. A newborn baby with hearing loss may not startle when there is a loud noise nearby.
Causes of hearing problems in children include otitis media (infection of the middle ear), genetic disorders, exposure to loud noise, and certain diseases (such as meningitis). Some signs that your older child may have trouble hearing include that they: don’t respond when called. Since adenoids are constantly in the path of germs, infections are common. There are several possible causes for hearing loss in children, whether it’s congenital or acquired. Non-genetic factors that might cause congenital hearing loss include:. Exposure to loud noise, causing noise-induced hearing loss. Transient hearing loss due to an ear infection can occur when fluid inhibits the vibrations of the tiny middle ear bones, making efficient sound transmission difficult. Ear infections, fluid buildup behind the eardrum, holes in the eardrum, and problems with the middle ear bones can cause deafness from conductive hearing loss. Half of all cases of profound deafness in children have a genetic source. To prevent this type of hearing loss it is important to wear proper hearing protection and avoid exposure to loud noise whenever possible. Some kinds of sensorineural hearing loss or deafness may be caused by infectious diseases, such as shingles, meningitis, and cytomegalovirus.
Going to concerts or blasting your stereo once in a while is common. But over time, too much exposure to loud noise can lead to a condition known as noise-induced hearing loss (NIHL). Unlike hearing loss that’s caused by noise, though, these types of hearing loss are not preventable. Genetic disorders. Most children with hearing loss are born to parents who have normal hearing. Either way, the most important thing to do is to get the right treatment as early as possible. This middle ear infection happens often in young children because the tubes that connect the middle ear to the nose, called Eustachian tubes, are not fully formed. Head injuries, very loud noises, and some medications can also cause hearing loss. In children hearing problems can affect the ability to learn language and in adults it can cause work related difficulties. A common condition that results in hearing loss is chronic ear infections. Extremely loud sounds may cause instant and permanent hearing loss.
Hearing Problems In Children
There are both external causes of damage, like noise trauma and infection, and intrinsic abnormalities, like deafness genes. A common cause or exacerbating factor in sensory hearing loss is prolonged exposure to environmental noise, for example, being in a loud workplace without wearing protection, or having headphones set to high volumes for a long period. Exposure to a very loud noise such as a bomb blast can cause noise-induced hearing loss. Some genetic causes give rise to a late onset hearing loss. There are many known causes of hearing loss such as genetic factors, various diseases, treatment for serious illnesses, and environmental factors including head trauma. Some hearing loss in childhood is delayed-onset or progressive in nature. Connexin 26 is the most common type of nonsyndromic genetic hearing loss. One of the most common and yet completely preventable causes of permanent sensorineural hearing loss is exposure to sound levels that are excessively loud. Children learn to communicate by imitating the sounds they hear. Possible causes of congenital hearing loss:Infections during pregnancy (German measles, toxoplasmosis and cytomegolavirus). Frequently, hearing loss in young children is temporary, and caused by earwax or middle-ear infections. Some children have sensorineural hearing loss (also called nerve deafness), which is permanent. Awaken or stir at loud sounds? The earlier children with hearing loss start getting services, the more likely they are to reach their full potential. If you think that your child might have hearing loss, ask the child’s doctor for a hearing screening as soon as possible. Does not startle at loud noises. Some babies with a genetic cause for their hearing loss might have family members who also have a hearing loss. Was exposed to infection, such as cytomegalovirus (CMV) infection, before birth. A hearing loss can cause a speech or language disorder in some cases, or it can worsen an already existing speech or language disorder. The higher the number of decibels (dB), the louder the sound. Causes of hearing loss in children include a variety of genetic and environmental factors. Another possible cause is a build-up of ear wax, or cerumen, in the ear canal. Some people produce more cerumen than average and their ears become blocked as a result, unless they are proactive about managing the build-up. Most children experience mild hearing loss when fluid accumulates in the middle ear from allergies or colds. If there is a family history of deafness, the cause is likely to be inherited (genetic). Your child doesn’t startle at loud noises by one month or turn to the source of a sound by three to four months of age.
Genetic more than half the children born deaf have an inherited gene defect. Chronic ear infections in childhood such as otitis media, or glue ear. After age-related hearing loss, research shows that exposure to loud noise is the second most common cause of permanent hearing loss in the world. Exposure to loud noise as well as certain conditions that are more common with age, such as high blood pressure or diabetes, and the side effects of certain medication including some chemotherapy drugs, can contribute to the problem. Inherited condition or genetic cause, such as Usher’s syndrome. Exposure to very loud noise over long periods. However, in some cases it may not be possible to identify the cause of deafness or hearing loss. Prolonged exposure to loud noise is the leading cause of sensory hearing loss. There are many reasons why a child can be born deaf or become deaf early in life. There is information on possible causes that happen before a child is born and those that happen at birth or afterwards. Many children are born deaf because of a genetic reason. Occasionally deafness is caused by an injury to the head or exposure to loud noise.
What are the medical treatments available for hearing loss in children? On this page you’ll find a summary of some of the more common medical conditions that can lead to hearing loss in children. Around half of all cases of congenital deafness are thought to be caused by genetic factors. Many of these sounds occur at loud and potentially injurious levels. Causes for acquired hearing loss include a genetic predisposition, ear disease, noise exposure (including music, industrial, military and more), ototoxic medicines, head trauma, and others. Deafness may be genetic or due to damage from noise. Whether it’s the screech of a chain saw, the sudden blast of a hunting rifle, or the roar of a lawn mower, exposure to loud sounds can cause noise-induced hearing loss (NIHL). Some 30 million people are at risk in the workplace, in recreational settings, and at home. In non-genetic causes, congenital deafness may be due to a condition or infection to which the mother was exposed during pregnancy, such as the rubella virus. Detecting Hearing Loss in Children. What are common symptoms of hearing loss in toddlers? What are the different types of genetic hearing loss? What are some other treatments that can cause hearing loss? Hearing loss develops in about ten percent of infected babies. Approximately 50 of hearing loss in childhood is caused by a genetic reason. Viral infections, problems at birth, prematurity, meningitis and ear infections are a few of the non-genetic causes of hearing loss in children. Some families note failure to blink or startle at loud noises, failure to turn the head toward familiar sounds, greater responsiveness to loud noises than to voices, a failure to babble, coo, or squeal, the consistent ability to sleep through loud noises, and monotonal babbling. In the toddler years, speech delay is the most common symptom of hearing loss. Genetic factors make some people more susceptible to hearing loss as their genes make them more predisposed due to ageing, loud noises, infections, or drugs. Common conductive hearing loss causes include allergies, ear infection, benign tumors, and infection in the ear canal, impacted eardrum, swimmer s ear, or presence of a foreign object. Hearing Issues, Genetics, and Your Child Genetics of Hearing Issues.