Otitis Media (Ear Infections) and Complications
What is Otitis Externa?
Otitis externa is an infection in the outer ear canal. Another name for this infection is "swimmer's ear" as this infection can be associated with exposure to water. This can make the skin more susceptible to infection by bacteria, yeast, and fungi. The symptoms include redness and swelling of the skin in the ear canal, significant pain of the ear canal and drainage. Treatment for this infection includes antibiotic or antifungal eardrops and possibly oral (by mouth) antibiotics. Prevention is advised in recurrent cases. Preventive treatments can include rinsing the ears with water and white vinegar mixed 50/50 after swimming. Ready-made eardrops for this purpose are also sold at various pharmacies, although these may contain alcohol that can cause further irritation.
What is Otitis Media?
Otitis media is also known as a middle ear infection (an infection in the space behind the ear drum). For children, otitis media is one of the most common infections. More than 90% of all children will have at least one infection by two years of age. There are two common forms: 1) recurrent "acute" infections, or 2) long lasting "chronic" infections. Persistent fluid behind the eardrum is known as otitis media with effusion.
What Causes Otitis Media?
Ear infections can be caused by bacteria or viruses. Risk factors include day care (usually with more than ten children) and smoking in the home. Allergies may contribute to ear disease but are not usually the direct cause of infections. Congenital syndromes such as Down syndrome, Treacher-Collins, and patients with cleft palate and Pierre-Robin sequence also have more infections due to difficulty in equalizing the pressure behind the ear drum.
How common is otitis media?
Middle ear infections are the most common reasons children present to the doctor's office. By three years of age, most children have had at least one ear infection, and 30% of children have had three or more episodes. If ear infections start before 6 months of age, your child may be "otitis prone" and will suffer more than the usual number of infections in the first three years of life. Also, infections in newborn infants can lead to more severe complications of otitis media when compared to older children. (See below for more information on otitis media complications)
How do I know if my child has ear infections?
Ear infections, for some children, are very painful. Commonly associated symptoms include pulling on the ears, increased irritability or behavioral changes, awakening at night, fever, decreased appetite, not wanting to lie flat, or a loss of balance. Some children have little or no discomfort, and ear infections in these children may be picked up only upon routine doctor visits or as part of an examination for another complaint.
When should I go see the doctor?
If your child has the signs and symptoms of an ear infection, see your doctor without delay. Although doctors may differ in their opinion on how to treat ear infections, it is important for your child to be followed closely until the ear infection resolves completely. This means that the infection as well as any remaining fluid in the middle ear is gone.
What are some of the complications of untreated otitis media?
Otitis media will often resolve without any treatment. However, possible complications of untreated otitis media include a hole (perforation) in the eardrum, hearing loss, and mastoiditis (see section below). Even more life-threatening complications, such as meningitis (infection in the fluid surrounding the brain), brain abscess (pocket of pus in the brain), and/or blood clots in the veins in the head brain, are uncommon, but can occur.
Because of the severity of these possible complications, many physicians recommend treatment for most ear infections with antibiotics.
What is mastoiditis?
Mastoiditis is infection or inflammation of the mastoid bone (the big hard bump felt behind the ear). Inside of the mastoid bone, there is a "honeycomb" (like inside a bee hive) area filled with air. Mastoiditis occurs when otitis media spreads to this air-filled area inside the mastoid bone. This complication of otitis media is uncommon today; because of the success antibiotics have in clearing up ear infections. Suspicion of mastoiditis occurs when the patient develops redness, tenderness, and swelling behind the ear. An antibiotic injection is used (usually in a vein) to treat this infection. If antibiotics are not effective, then a MASTOIDECTOMY is considered.
What options are available to treat ear infections?
Because most ear infections are painful or may lead to complications, the most common treatment is with antibiotics and pain medication (Paracetamol, ibuprofen, or numbing ear drops). If the infection is severe, an antibiotic injection may be required to help reduce symptoms more quickly.
Decongestants and antihistamines have not been found helpful in clearing ear infections unless the child has significant allergies contributing to the ear infection. Ninety percent of children will resolve persistent fluid from the middle ear within 3 months after the infection. However, if the fluid does not clear after 3 months then the likelihood of clearing the fluid without intervention is much less.
When Should I See an Ear, Nose and Throat Surgeon (Otolaryngologist)?
If you are wondering when your child should be seen by a specialist, the following are guidelines which have been jointly adopted by the American Academy of Pediatrics and the American Academy of Otolaryngology (ear, nose and throat physicians):
If your child has three or more infections prior to six months of age.
If your child has four infections in six months or
If your child has six or more infections in a year.
If your child has fluid that lasts more than three months with associated hearing loss.
If your child has signs of significant hearing loss.
If your child has delayed speech
When are Tubes (grommets) a Consideration?
Tympanostomy tubes (tubes/ grommets) may be suggested when your child has failed to improve with antibiotics or has fluid which will not clear after an appropriate length of time. Tubes are especially helpful in reversing the hearing loss due to fluid trapped behind the ear drum.
Tympanostomy tubes are small plastic or silastic tubes that allow more normal movement of air behind the ear drum (fig.2). Tubes usually fall out of the ear (as the ear drum grows) within one to two years unless specified as "permanent" by your doctor.
Placement of tubes occurs through the ear canal under a brief (five to ten minutes) general anesthetic, and rarely requires a blood test or IV. The procedure is painless and allows your child to resume normal activity upon leaving the hospital.
Although you may hear lots of "advice" about tubes from family, friends and neighbours, talk to your doctor about the treatment plan that is best for your child.
What will an ear, nose and throat surgeon do?
An ear, nose, and throat specialist will help to determine whether a surgical procedure may be helpful for your child.
TYMPANOSTOMY TUBES may be suggested when your child has failed to improve with antibiotics or has fluid which will not clear after an appropriate amount of time. Tubes are especially helpful in reversing hearing loss due to fluid trapped behind the eardrum.
An ear, nose and throat specialist may also be consulted to perform a myringotomy (draining fluid from the middle ear through the ear drum). This can be used to determine the specific type of bacteria causing an infection. It is also useful in acute (with pus) otitis media, in which the FACIAL NERVE is inflamed.
Occasionally, an ADENOIDECTOMY, may be recommended if ear infections are closely related to runny nose, cough, nasal stuffiness and other sinus symptoms.
ADENOIDECTOMY is also routinely recommended when children need a second set of tympanostomy tubes.
In severe infections, when the mastoid is also involved, a MASTOIDECTOMY may be indicated.