Popular Science: Aeronautical otitis media

In this issue, we will do a knowledge development for everyone:AviationOtitis media.

Many of us have done airplanes. When I was doing airplanes, I believe that many people will feel that the ears are uncomfortable. This is a normal phenomenon and can be relieved by swallowing, chewing, yawning and other actions.

Atmospheric pressure is reduced as altitude increases. During the voyage, as the aircraft rises or falls, the air pressure in the cockpit changes accordingly, and the gas containing the air chamber expands or shrinks. Generally, when the eustachian tube has a good ventilation function, the balance of the pressure inside and outside the tympanic membrane can be maintained by adjusting the eustachian tube and artificially ventilating the movement during the lifting and lowering. At this time, there is only a feeling of ear swelling or a slight hearing disorder, but not Can cause ear damage. If the pressure inside and outside the middle ear cavity cannot be quickly balanced, various syndromes will be produced, collectively referred to as air pressure injury, and the middle ear cavity is called aeronautical otitis media. It can also occur during diving operations, low-pressure chamber work, and hyperbaric oxygen therapy.

Aviation otitis media

So how do we prevent it?

When the plane is falling or rising, we can use chewing, swallowing, yawning and other actions to ease. If you feel that this symptom has not disappeared, use your thumb and forefinger to pinch your nose and close your mouth, forcefully exhale, let the air flow open. The drum tube enters the air cavity of the middle ear to eliminate symptoms such as ear nausea, ear weight and ear pain.

发生Aviation otitis mediaAfter that, the earlier the treatment, the better the treatment effect, and the simpler the treatment required. It is feasible to swallow, chew, yawn and other actions during treatment. The vasoconstrictor such as ephedrine can be dripped on the nose; the tympanic effusion and the blood should be sterilized by tympanostomy; the perforated tympanic membrane should be inserted into the external auditory canal with a sterile cotton ball to keep dry and not self-healing. Possible tympanoplasty. For those suffering from aerobic otitis media, the cause should be sought and removed.

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