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OTITIS MEDIA
Acute Otitis Media (Earache)
Signs and Symptoms: Acute otitis media is an inflammation of the area behind the eardrum (tympanic membrane). This area is called the middle ear. Acute otitis media is an infection with the production of pus within the middle ear. The older child will often complain about ear pain, ear fullness or hearing loss. Younger children may demonstrate irritability, fussiness or difficulty in sleeping, feeding or hearing. Fever may be present in a child of any age.
These symptoms are frequently associated with signs of upper respiratory infections such as a runny or stuffy nose or a cough. Severe ear infections may cause the ear drum to rupture. This should result in pain relief and a fall in the fever. The pus will then start to drain out of the middle ear and into the ear canal. The hole in the (tympanic membrane). This area is called the middle ear. Acute otitis ear drum from the rupture will usually heal with medical treatment.
Description:
Ear In children, the eustachian tube is shorter than in adults and allows bacteria and viruses to find their way into the middle ear. This results in acute otitis media, with a build-up of pus within the middle ear. The pressure and inflammation of the pus results in pain and the inability of the ear drum to vibrate. During the infection there will usually be some hearing loss.
With proper medical treatment, the bacteria will be killed. As fluid and pus disappear from the middle ear, hearing will improve.
Acute otitis media is a common childhood ailment. By the time a child is three, she has a two in three chance of having experienced at least one episode of acute otitis media.
Acute otitis media frequently occurs with respiratory infections as the nasal membranes and the eustachian tube become swollen and congested. Bacteria are responsible for most (80-85 percent) of cases of acute otitis media. STREPTOCOCCUS PNEUMONIAE, HEMOPHILUS INFLUENZA and MORAXELLA CATARHALIS are the common bacterial offenders. Viruses can be found in about 15 percent of the cases. Sometimes a mixture of microorganisms may be found. Infants under six weeks of age often show a different class of bacteria called gram-negative bacteria.
The standard therapy of acute otitis media is antibiotics. Despite the start of treatment, 10 percent of children do not have a response to their acute otitis media within the first 48 hours of treatment. Even after effective antibiotic treatment, 40 percent of children may retain a noninfected residual fluid in the middle ear that can cause persistent hearing loss. This may last for three to six weeks after the initial antibiotic therapy for acute otitis media.
There are other types of otitis media. Otitis media with effusion is the presence of middle ear fluid for six weeks or longer from the initial acute otitis media. Some children can develop middle ear fluid without a prior ear infection when the eustachian tube is not functioning to ventilate the ear. This is called serous otitis media.
When infection persists, the middle ear and eardrum may start to sustain ongoing damage. Frequent drainage through a nonhealing hole in the eardrum results. This is called chronic otitis media.
The treatment of these conditions may vary or require the care of an Ear, Nose and Throat specialist (ENT).
The acute ear infection type of acute otitis media may often be preceded by an upper respiratory infection. Although acute otitis media itself is not contagious, the preceding upper respiratory infection could well be. Once the ear is infected, the duration of the infection is variable. It may improve within 48 hours even without treatment. Typically, the doctor will prescribe a 10-day course of antibiotics, which should, in most cases, cure the infection, Even with the elimination of infection, the middle ear fluid may persist for weeks or months. During this time a hearing loss will persist. In the majority of children, this fluid will eventually clear spontaneously.
More Information
The Middle Ear Deep within the outer ear canal is the eardrum (tympanic membrane). The eardrum is a thin, transparent membrane that vibrates in response to sound waves. The middle ear is a small, air-containing cavity that sits behind the eardrum. When the eardrum vibrates, tiny bones within the middle ear transmit the sound signals to the inner ear. Here nerves are stimulated to relay the sound signals to the brain. A tiny passageway, the eustachian tube, connects the middle ear to the nose. The eustachian tube normally serves to ventilate and equalize pressure to the middle ear. When your child's ears "pop" when yawning or swallowing, it is adjusting the air pressure in the middle ear.
Prevention:
In infants, breast feeding helps to pass along immunities that prevent acute otitis media. The position of the child with breast feeding also is better for eustachian tube function than the position of a baby when bottle feeding. If a child needs to be bottle fed, holding the infant rather than allowing the child to lie down with the bottle is best. A child should not take the bottle to bed. In addition to increasing the chance for acute otitis media, falling asleep with milk in the mouth increases the incidence of tooth decay.
Frequent upper respiratory infections lead to frequent acute otitis media. For this reason, exposure to large groups such as in day care results in more frequent colds and therefore more earaches. Environmental irritants, such as second hand tobacco smoke, should also be avoided.
Some medical conditions are associated with frequent otitis media, specifically Down syndrome, cleft palate and allergies. Certain groups of people are also more frequent sufferers of ear infections, particularly Caucasians and Native Americans. Males are also more commonly affected than females. Children who start with acute otitis media when younger than the age of six months may be more prone to frequent bouts of ear infection.
Children who are prone to recurrent bouts of otitis media or who have deficiencies in their immune system may be prescribed antibiotics or a tympanostomy tube by their doctor. The tube is inserted into the ear during surgery to permit fluid to drain from the middle ear.
Incubation: The period of incubation is variable, but usually the otitis media is preceded by a few days of upper respiratory tract infection.
Duration: The duration of the disease is variable. There may be improvement within 48 hours even without treatment. A week's treatment with antibiotics is usually effective. In some cases, fluid may persist in the middle ear even after antibiotic treatment for two weeks to even two months. In the majority, this clears spontaneously. There may be a reduction of hearing during this period.
Contagiousness: Acute otitis media is not contagious, though the upper respiratory tract infection that was its primary cause could be.
Home Treatment: Home treatment, after the initial physician's evaluation, relies on making the child comfortable. Medications to relieve pain and fever may be necessary so the child can sleep. The child can go outside. Can a child swim or fly in a plane? What little medical literature there is suggests that a child with serious otitis media can fly. If the eustachian tube is not functioning well, however, changes in outside pressure (such as that occurring in a plane's cabin or underwater) can cause discomfort. It is generally recommended that children with draining ears should not swim.
Professional Treatment: Antibiotics may be prescribed by the physician. There are broad spectrum medications or drugs directed at a specific bacteria detected through laboratory testing. In infants younger than six weeks of age, intravenous antibiotics and tympanocentesis (surgical drainage of the
infection to get a sample of pus for the laboratory) may be necessary. If there is drainage from the ear, antibiotic ear drops also may be prescribed.
If a child has a bulging eardrum and is experiencing severe pain, a myringotomy (surgical incision of the eardrum to release the pus) may be necessary. The eardrum usually heals within a week.
Many parents are concerned about permanent hearing loss. If medications are taken as directed, the chances of permanent hearing loss are minimal.
When to Call Your Pediatrician: Unresolved otitis media can lead to complications, so children with earache or a sense of fullness in the ear, especially when combined with fever or a prior upper respiratory tract infection, should always be evaluated by a physician. There also are other conditions that can result in earaches - dental ailments (teething), a foreign object in the ear, ear canal injury (as from cotton swabs) or hard ear wax. The physician can diagnose the exact cause of the discomfort and offer specific therapy.