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Otitis media is inflammation located in the middle ear. Otitis media can occur as a result of a cold, sore throat, or respiratory infection.
Facts about otitis media
More than 80 percent of children have at least one episode of otitis media by the time they are 3 years of age.
Otitis media can also affect adults, although it is primarily a condition that occurs in children.
Who is at risk for getting ear infections?
While any child may develop an ear infection, the following are some of the factors that may increase your child's risk of developing ear infections:
Being around someone who smokes
Family history of ear infections
A poor immune system
Spends time in a daycare setting
Absence of breastfeeding
Having a cold
Bottle-fed while laying on his or her back
What causes otitis media?
Middle ear infections are usually a result of a malfunction of the eustachian tube, a canal that links the middle ear with the throat area. The eustachian tube helps to equalize the pressure between the outer ear and the middle ear. When this tube is not working properly, it prevents normal drainage of fluid from the middle ear, causing a build up of fluid behind the eardrum. When this fluid cannot drain, it allows for the growth of bacteria and viruses in the ear that can lead to acute otitis media. The following are some of the reasons that the eustachian tube may not work properly:
A cold or allergy which can lead to swelling and congestion of the lining of the nose, throat, and eustachian tube (this swelling prevents the normal flow of fluids)
A malformation of the eustachian tube
What are the different types of otitis media?
Different types of otitis media include the following:
Acute otitis media (AOM). The middle ear infection occurs abruptly causing swelling and redness. Fluid and mucus become trapped inside the ear, causing the child to have a fever, ear pain, and hearing loss.
Otitis media with effusion (OME.) Fluid (effusion) and mucus continue to accumulate in the middle ear after an initial infection subsides. The child may experience a feeling of fullness in the ear and hearing loss.
Chronic otitis media with effusion (COME). Fluid remains in the middle ear for a prolonged period or returns again and again, even though there is no infection. May result in difficulty fighting new infection and hearing loss.
What are the symptoms of otitis media?
The following are the most common symptoms of otitis media. However, each child may experience symptoms differently. Symptoms may include:
Unusual irritability
Difficulty sleeping or staying asleep
Tugging or pulling at one or both ears
Fever
Fluid draining from ear(s)
Loss of balance
Hearing difficulties
Ear pain
The symptoms of otitis media may resemble other conditions or medical problems. Always consult your child's physician for a diagnosis.
How is otitis media diagnosed?
In addition to a complete medical history and physical examination, your child's physician will inspect the outer ear(s) and eardrum(s) using an otoscope. The otoscope is a lighted instrument that allows the physician to see inside the ear. A pneumatic otoscope blows a puff of air into the ear to test eardrum movement.
Tympanometry, is a test that can be performed in most physicians' offices to help determine how the middle ear is functioning. It does not tell if the child is hearing or not, but helps to detect any changes in pressure in the middle ear. This is a difficult test to perform in younger children because the child needs to remain still and not cry, talk, or move.
A hearing test may be performed for children who have frequent ear infections.
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