Epiglottitis
Supraglottitis
Epiglottitis is inflammation of the epiglottis. This is the tissue that covers the trachea (windpipe). Epiglottitis is a life-threatening disease.
Causes
The epiglottis is a stiff, yet flexible tissue (called cartilage) at the back of the tongue. It closes your windpipe (trachea) when you swallow so food does not enter your airway. This helps prevent coughing or choking after swallowing.
In children, epiglottitis is usually caused by the bacteria Haemophilus influenzae ( H. influenzae ) type B. In adults, it is often due to other bacteria such as Strepcoccus pneumoniae , or viruses such as herpes simplex virus and varicella-zoster.
Epiglottitis is now very uncommon because the H. influenzae type B (Hib) vaccine is given routinely to all children. The disease was once most often seen in children ages 2 through 6. In rare cases, epiglottitis can occur in adults.
H. influenzae type B (Hib) vaccine
All content below is taken in its entirety from the CDC Hib (Haemophilus Influenzae Type b) Vaccine Information Statement (VIS): www. cdc. gov/vaccin...
Symptoms
Epiglottitis begins with a high fever and sore throat. Other symptoms may include:
-
Abnormal breathing sounds (
stridor
)
Stridor
Stridor is an abnormal, high-pitched, musical breathing sound. It is caused by a blockage in the throat or voice box (larynx). It is most often hea...
- Fever
-
Blue skin color (
cyanosis
)
Cyanosis
Cyanosis is a bluish color to the skin or mucous membrane that is usually due to a lack of oxygen in the blood.
- Drooling
- Difficulty breathing (the person may need to sit upright and lean slightly forward to breathe)
- Difficulty swallowing
- Voice changes (hoarseness)
The airways can become totally blocked, which can result in cardiac arrest and death.
Exams and Tests
Epiglottitis is a medical emergency. Seek medical help right away. Do not use anything to press the tongue down to try to look at the throat at home. Doing so may make the condition worse.
The health care provider may examine the voice box (larynx) using a small mirror held against the back of the throat. Or a viewing tube called a laryngoscope may be used. This examination is best done in the operating room or a similar setting where sudden breathing problems can be more easily handled.
Tests that may be done include:
-
Blood culture
or
throat culture
Blood culture
A blood culture is a laboratory test to check for bacteria or other germs in a blood sample.
Throat culture
A throat swab culture is a laboratory test that is done to identify germs that may cause infection in the throat. It is most often used to diagnose ...
-
Complete blood count (CBC)
Complete blood count (CBC)
A complete blood count (CBC) test measures the following:The number of red blood cells (RBC count)The number of white blood cells (WBC count)The tota...
- Neck x-ray
Treatment
A hospital stay is needed, usually in the intensive care unit (ICU).
Treatment involves methods to help the person breathe, including:
-
Breathing tube (
intubation)
Intubation)
Endotracheal intubation is a medical procedure in which a tube is placed into the windpipe (trachea) through the mouth or nose. In most emergency si...
- Moistened (humidified) oxygen
Other treatments may include:
- Antibiotics to treat the infection
- Anti-inflammatory medicines, called corticosteroids, to decrease throat swelling
- Fluids given through a vein (by IV)
Outlook (Prognosis)
Epiglottitis can be a life-threatening emergency. With proper treatment, the outcome is usually good.
When to Contact a Medical Professional
Spasm may cause the airways to close suddenly. Or, the airways may become totally blocked. Either of these situations could result in death.
Prevention
The Hib vaccine protects most children from epiglottitis.
The most common bacteria ( H. influenza type b ) that causes epiglottitis is easily spread. If someone in your family is sick from this bacteria, other family members need to be tested and treated.
References
Nayak JL, Weinberg GA. Epiglottitis. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases . 8th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 64.
Roosevelt GE. Acute inflammatory upper airway obstruction (croup, epiglottitis, laryngitis, and bacterial tracheitis). In: Kliegman RM, Stanton BF, St Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics . 20th ed. Philadelphia, PA: Elsevier; 2016:chap 385.
-
Haemophilus influenza organism - illustration
This picture shows the organism Haemophilus influenza. Infections caused by Haemophilus influenza usually occur in children under 6 years old and are extremely serious. Haemophilus (type B) is responsible for meningitis, periorbital cellulitis, buccal cellulitis and epiglottitis, septic arthritis, osteomyelitis, pericarditis, and bacteremia. The small organisms live within cells (intracellular) as shown in this picture. (Image courtesy of the Centers for Disease Control and Prevention.)
Haemophilus influenza organism
illustration
-
Throat anatomy - illustration
Structures of the throat include the esophagus, trachea, epiglottis and tonsils.
Throat anatomy
illustration
-
Haemophilus influenza organism - illustration
This is a Gram stain of spinal fluid from a person with meningitis. The rod-like organisms seen in the fluid are Haemophilus influenza, one of the most common causes of childhood meningitis (prior to the widespread use of the H influenza vaccine). The large red-colored objects are cells in the spinal fluid. A vaccine to prevent infection by Haemophilus influenza (type B) is available as one of the routine childhood immunizations (Hib), typically given at 2, 4 and 12 months.
Haemophilus influenza organism
illustration
-
Haemophilus influenza organism - illustration
This picture shows the organism Haemophilus influenza. Infections caused by Haemophilus influenza usually occur in children under 6 years old and are extremely serious. Haemophilus (type B) is responsible for meningitis, periorbital cellulitis, buccal cellulitis and epiglottitis, septic arthritis, osteomyelitis, pericarditis, and bacteremia. The small organisms live within cells (intracellular) as shown in this picture. (Image courtesy of the Centers for Disease Control and Prevention.)
Haemophilus influenza organism
illustration
-
Throat anatomy - illustration
Structures of the throat include the esophagus, trachea, epiglottis and tonsils.
Throat anatomy
illustration
-
Haemophilus influenza organism - illustration
This is a Gram stain of spinal fluid from a person with meningitis. The rod-like organisms seen in the fluid are Haemophilus influenza, one of the most common causes of childhood meningitis (prior to the widespread use of the H influenza vaccine). The large red-colored objects are cells in the spinal fluid. A vaccine to prevent infection by Haemophilus influenza (type B) is available as one of the routine childhood immunizations (Hib), typically given at 2, 4 and 12 months.
Haemophilus influenza organism
illustration
Review Date: 2/27/2016
Reviewed By: Amit M. Shelat, DO, FACP, Attending Neurologist and Assistant Professor of Clinical Neurology, SUNY Stony Brook, School of Medicine, Stony Brook, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.