Ludwig's angina Health Article

Definition

Ludwig's angina is a bacterial infection of the floor of the mouth. It involves swelling that may block the airway.

Alternative Names

Submandibular space infection; Sublingual space infection

Causes, incidence, and risk factors

Ludwig's angina is a type of cellulitis that involves inflammation of the tissues of the floor of the mouth, under the tongue. It often occurs after an infection of the roots of the teeth (such as tooth abscess) or a mouth injury.

This condition is uncommon in children.

Symptoms

Swelling of the tissues occurs rapidly and may block the airway or prevent swallowing of saliva.

Symptoms include:

• Breathing difficulty
• Confusion or other mental changes
• Fever
• Neck pain
• Neck swelling
• Redness of the neck
• Weakness, fatigue, excessive tiredness

Additional symptoms that may be associated with this disease:

• Earache
• Drooling

Signs and tests

An examination of the neck and head shows redness and swelling of the upper neck, under the chin. The swelling may reach to the floor of the mouth. The tongue may be swollen or out of place.

A CT scan of the neck may be recommended. Culture of fluid from the tissues may show bacteria.

Treatment

If the swelling blocks the airway, emergency medical help is needed to maintain an open airway. This may involve placing a breathing tube through the mouth or nose and into the lungs, or surgery called a tracheostomy that creates an opening through the neck into the windpipe.

Antibiotics, usually penicillin or penicillin-like drug, are given to fight the infection. They are usually given through a vein until symptoms go away. Antibiotics taken by mouth may be continued until tests show that the bacteria has gone away.

Dental treatment may be needed to treat tooth infections that cause Ludwig's angina.

Surgery may be needed to drain fluids that are causing the swelling.

Expectations (prognosis)

Ludwig's angina can be life threatening. However, it can be cured with proper protection of the airways and appropriate antibiotics.

Complications

• Airway blockage
• Generalized infection (sepsis)
• Septic shock