choking


Also found in: Dictionary, Thesaurus, Legal, Idioms, Encyclopedia, Wikipedia.

Choking

 

Definition

Choking is the inability to breathe because the trachea is blocked, constricted, or swollen shut.

Description

Choking is a medical emergency. When a person is choking, air cannot reach the lungs. If the airways cannot be cleared, death follows rapidly.
Anyone can choke, but choking is more common in children than in adults. Choking is a common cause of accidental death in young children who are apt to put toys or coins in their mouths, then unintentionally inhale them. About 3,000 adults die each year from choking on food.
People also choke because infection causes the throat tissue to swell shut. It is believed that this is what caused George Washington's death. Allergic reactions can also cause the throat to swell shut. Acute allergic reactions are called anaphylactic reactions and may be fatal. Strangulation puts external pressure on the trachea causing another form of choking.
Finally, people can choke from obstructive sleep apnea. This is a condition where tissues of the body obstruct the airways during sleep. Sleep apnea is most common in obese men who sleep on their backs. Smoking, heavy alcohol use, lung diseases such as emphysema, and an inherited tendency toward a narrowed airway and throat all increase the risk of choking during sleep.

Causes and symptoms

There are three reasons why people choke. These are:
  • mechanical obstruction
  • tissue swelling
  • crushing of the trachea.
Regardless of the cause, choking cuts off the air supply to the lungs. Indications that a person's airway is blocked include:
  • the person cannot speak or cry out
  • the person's face turns blue from lack of oxygen
  • the person desperately grabs at his or her throat
  • the person has a weak cough and labored breathing that produces a high-pitched noise
  • the person has all of the above symptoms, then becomes unconscious
  • during sleep, the person has episodes of gasping, pauses in breathing, and sudden awakenings.

Diagnosis

Diagnosing choking due to mechanical obstruction is straightforward, since the symptoms are obvious even to an untrained person. In choking due to infection, the person, usually a child, will have a fever and signs of illness before labored breathing begins. If choking is due to an allergic reaction to medication or insect bites, the person's earlobes and face will swell, giving an external sign that internal swelling is also occurring.
Choking due to sleep apnea is usually diagnosed on reports of symptoms by the person's sleep partner. There are also alarm devices to detect the occurrence of sleep apnea. Eventually sleep may be interrupted so frequently that daytime drowsiness becomes a problem.

Treatment

Choking, except during sleep apnea, is a medical emergency. If choking is due to allergic reaction or infection, people should summon emergency help or go immediately to an emergency room. If choking is due to obstructed airways, the Heimlich maneuver (an emergency procedure in which a person is grasped from behind in order to forcefully expel the obstruction) should be performed immediately. In severe cases a tracheotomy (an incision into the trachea through the neck below the larynx) must be performed.
Patients who suffer airway obstruction during sleep can be treated with a device similar to an oxygen mask that creates positive airway pressure and delivers a mixture of oxygen and air.

Prognosis

Many people are treated successfully for choking with no permanent effects. However, if treatment is unsuccessful, the person dies from lack of oxygen. In cases where the airway is restored after the critical period passes, there may be permanent brain damage.

Prevention

Watching children carefully to keep them from putting foreign objects in their mouth and avoiding giving young children food like raisins, round slices of hot dogs, and grapes can reduce the chance of choking in children. Adults should avoid heavy alcohol consumption when eating and avoid talking and laughing with food in their mouths. The risk of obstructive sleep apnea choking can be reduced by avoiding alcohol, tobacco smoking, tranquilizers, and sedatives before bed.

Resources

Organizations

American Heart Association. 7320 Greenville Ave. Dallas, TX 75231. (214) 373-6300. http://www.americanheart.org.

Key terms

Trachea — The windpipe. A tube extending from below the voice box into the chest where it splits into two branches, the bronchi, that go to each lung.
Tracheotomy — The surgical creation of an opening in the trachea that functions as an alternative airway so that the patient may breathe.

chok·ing

pnigophobia.

choking

the condition in which a respiratory passage is blocked by constriction of the neck, an obstruction in the trachea, or swelling of the larynx. It is characterized by decreased movement of air through the airways or sudden coughing and a red face that rapidly becomes cyanotic. The person cannot breathe and clutches his or her throat. Emergency treatment requires removal of the obstruction and resuscitation if necessary. See also Heimlich maneuver.

choking/lung/pulmonary agents

chemicals that cause severe irritation or swelling of the respiratory tract. Agents include ammonia, bromine, chlorine, osmium tetraoxide, phosgene, phosphine, and phosphorus. When inhaled, they cause damage to the lungs, either by their corrosive effects or by cytotoxicity, leading to respiratory distress and death from respiratory failure. Treatment consists of supportive care.

chok·ing

(chōk'ing)
Upper airway obstruction resulting from a foreign object in the trachea or oropharynx, laryngeal spasm or edema, or external compression of the neck. A life-threatening situation such as asphyxia, hypoxia, and death may occur if the victim is unable to clear the airway by coughing. The inability to speak indicates a complete airway obstruction. The universal sign for choking is the grasping of the throat by the person choking.
See also: Heimlich maneuver

choking

Partial or total obstruction of the main air passage (the LARYNX or TRACHEA) by foreign body or external pressure. This induces a protective COUGH response which often clears the obstruction.

choking

in sport psychology, a sudden inability to perform at one's normal standard. Associated with high levels of competitive sport anxiety.

choking

pertaining to choke. Used to describe a syndrome in horses with dorsal soft palate displacement. A clinical sign of laryngeal disease.
References in periodicals archive ?
While visiting GPO and Lakshmi chowk, the MD ensured the WASA management for every possible assistance for combined operations in order to guarantee the smooth flow of rainwater disposal at choking points.
A FIRST aid campaign shows most parents in the North East don't know how to save a choking baby's life.
KitchenAid is recalling about 220,000 food processors for repair over concerns they present a choking hazard.
A disabled man died after choking on a meal, an inquest heard.
Corey realized that his friend Kevin Healy, seven, was choking, and was in terrible danger.
Such as: moving the unchoked cable from probe 2 to other probe positions; adding chokes to the network; removing chokes; and verifying that the currents are indeed equal and opposite in the inner and outer conductors of every choke to test Schurr and Melcher's observations [25] that linear frequency dependences can be induced by improper choking and imperfect current equalization.
Amazingly, the man, despite choking, managed to drive to a hospital two miles away in northern Brazil.
Haynes said Baxley hit the victim before he started choking him,'' Cromer said.
Physicians who believe a child or ado lescent may be playing the choking game are advised to discuss the life-threatening dangers associated with the activity and to seek additional help if necessary.
Coroner Philip Walters recorded a verdict of accidental death after hearing how Mrs Hoard, of Lon Heulog in Hawthorn, Pontypridd, died from a heart attack brought on by choking.
When the choking incident in which Ms Honeysett died occurred all the correct procedures were followed.