Tympanic membrane trauma

Introduction to tympanic membrane trauma Injury of the tympanic membrane (injuryoftympanicmembrane) is often caused by direct or indirect external forces. Injury of the tympanic membrane (injuryoftympanicmembrane) is often caused by direct or indirect external forces. The tympanic membrane is a glossy, translucent, membranous tissue. It is located at the innermost end of the external auditory canal, between the external auditory canal. Much like the diaphragm in the microphone, the upper part of the tympanic membrane is called the slack part, the middle part is the tension part, and the tympanic membrane trauma occurs mostly in the tension part. The sound wave is transmitted to the tympanic membrane to cause vibration. In fact, the tympanic membrane is connected to the ossicular chain as a whole to exert its high-efficiency sound transmission function, and the air with large external amplitude and small sound pressure is converted into lymph fluid with small amplitude and large sound pressure. In the event of a violent vibration of the outside air (firecrackers, explosions), detonation waves and airflow impacts can be quickly transmitted to the external auditory canal to rupture the tympanic membrane. Suddenly felt earache after rupture, immediate hearing loss accompanied by tinnitus, a small amount of bleeding in the external auditory canal and a stuffy feeling in the ear. basic knowledge The proportion of sickness: 0.6% - 0.9% Susceptible people: no specific population Mode of infection: non-infectious Complications: deafness

Cause of tympanic membrane trauma

Can be divided into equipment injuries (such as the use of matchsticks, wool needles and other ear injury tympanic membrane, or slag, sparks, etc.) or barotrauma (such as palm ear, blast, cannon, firecrackers, high diving, etc.) Others have longitudinal fractures of the tibia and foreign bodies.

Tympanic membrane injury prevention

Strengthen health education, disable matchsticks, hairpins and other sharps to dig ears, take foreign bodies or sputum in the external auditory canal, be careful, moderate, avoid injury to the tympanic membrane, encounter blasting conditions such as fried mountains, guns, firecrackers, etc., available cotton or fingers The ear, if wearing protective earplugs, works better.

Tympanic membrane trauma complications Complications

Will be combined with external ear canal fracture infection, can occur severe deafness.

Tympanic membrane trauma symptoms Common symptoms Hearing loss Earaches Ear leaks Tinnitus Deafness Bloody nausea and dizziness Ear discharge

There is a little blood in the external auditory canal, such as combined with external auditory canal fracture, or a large amount of bleeding in the skull base fracture and cerebrospinal fluid otorrhea. The tympanic membrane perforation is mostly irregular, with bloody surface on the surface. Department, the knocking is mostly in the front lower part, the tympanic membrane color is normal, if there is a combined infection, there is severe congestion and pus.

After the tympanic membrane is ruptured, it can be aroused earache, hearing loss, tinnitus, a small amount of bleeding and suffocation in the ear. In addition to the rupture of the tympanic membrane caused by the blast injury, the inner ear can be damaged due to strong movement of the tibia, and dizziness and nausea can occur. Or mixed hemorrhoids, the examination shows that the tympanic membrane is mostly fissure-like perforation, there is a small amount of blood on the edge of the perforation, blood or bloody sputum is sometimes seen in the external auditory canal. If there is watery fluid, it shows cerebrospinal fluid otorrhea caused by skull base fracture, deafness is conductive or Mixed.

Tympanic membrane injury examination

After examination, the tympanic membrane was mostly fissure-like perforation, and there was a small amount of blood on the edge of the perforation, and blood or blood was sometimes seen in the external auditory canal. If there is a watery solution, it may indicate that there may be cerebrospinal fluid otorrhea caused by a skull base fracture. In addition, hearing function tests, acoustic impedance tests are needed to determine whether the middle and inner ears are damaged.

Diagnosis of tympanic membrane trauma

According to the history of trauma, clinical manifestations and auxiliary examination, the diagnosis can be confirmed. Identification with acute suppurative mastoiditis.

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