Ear barotrauma

Contents

Causes

Symptoms

Exams and tests

Treatment

Outlook (prognosis)

Possible complications

When to contact a doctor

Prevention

CAUSES

The air pressure in the middle ear is usually the same as the air pressure outside of the body. The eustachian tube is a connection between the middle ear and the back of the nose and upper throat.

Swallowing or yawning opens the eustachian tube and allows air to flow into or out of the middle ear, keeping the air pressure on both sides of the eardrum equal. If the eustachian tube is blocked, the air pressure in the middle ear is different than the pressure on the outside of the eardrum. This can cause barotrauma.

Many people experience barotrauma at some time. Barotrauma commonly occurs with altitude changes, such as flying, scuba diving, or driving in the mountains. If you have a congested nose from allergies, colds, or an upper respiratory infection, you are more likely to develop barotrauma.

Blockage of the eustachian tube could also be present before birth (congenital), or it may occur because of swelling in the throat.

SYMPTOMS

• Dizziness

• Ear discomfort or pain in one or both ears

• Hearing loss (slight)

• Sensation of fullness or stuffiness in the ears

If the condition is severe or prolonged:

• Ear pain

• Feeling of pressure in the ears (as if underwater)

• Moderate to severe hearing loss

• Nosebleed

EXAMS AND TESTS

During an inspection of the ear, the doctor may see a slight outward bulge or inward pull of the eardrum. If the condition is severe, there may be blood or bruising behind the eardrum.

Severe barotrauma may be difficult to tell apart from an ear infection.

TREATMENT

To relieve ear pain or discomfort, first try to open the eustachian tube and relieve the pressure.

• Chew gum

• Inhale, and then gently exhale while holding the nostrils closed and the mouth shut

• Suck on candy

• Yawn

When flying, do not sleep during the descent. Use these measures frequently to open the eustachian tube. Allow infants and children to nurse or sip a drink during descent.

Divers should descend and ascend slowly. Diving while you have allergies or a respiratory infection is dangerous, because barotrauma may be severe.

If self-care attempts do not relieve your discomfort within a few hours, or if the barotrauma is severe, you may need medical intervention.

Medications recommended may include:

• Antihistamines

• Decongestants taken by mouth or by a nose spray

• Steroids

These medications may relieve nasal congestion and allow the eustachian tube to open. Antibiotics may prevent ear infection if barotrauma is severe. If the tube will not open with other treatments, surgery may be necessary. A surgical cut is made in the eardrum to allow pressure to become equal and fluid to drain (myringotomy). However, surgery is rarely necessary. If you must make frequent altitude changes or you are susceptible to barotrauma, you may have tubes surgically placed in the eardrum.

OUTLOOK (PROGNOSIS)

Barotrauma is usually noncancerous (benign) and responds to self-care. Hearing loss is almost always temporary.

POSSIBLE COMPLICATIONS

• Acute ear infection
• Hearing loss
• Ruptured or perforated eardrum
• Vertigo

WHEN TO CONTACT A DOCTOR

Try home care measures first. If you cannot relieve the discomfort of barotrauma in a few hours, call for an appointment with your health care provider. Call your provider if you have barotrauma and new symptoms develop, especially:

• Drainage or bleeding from the ear

• Fever
• Severe ear pain

PREVENTION

You can use nasal decongestants or antihistamines before altitude changes. Try to avoid altitude changes while you have an upper respiratory infection or allergy attack.

Source: http://www.nlm.nih.gov/medlineplus/ency/article/001064.htm