Is it autonomic nervous system disorder that causes auditory hallucinations when hearing echoes after catching a cold? Doctor: Beware of otitis media complicated by 1 disease
The woman turned her head and heard an echo, thinking that autonomic nervous system disorder was causing auditory hallucinations.
A 60-year-old female director of a famous university, after a cold, whenever she turned her head or changed her body posture, she would hear a “clang~”, as if someone was knocking on the glass, with a tail sound that lasted for half a second, especially It is more obvious when you suddenly lie down before going to bed; when you wake up in the morning, you hear it again when you get up, but the frequency is different. I thought it was an autonomic nervous system disorder that caused auditory hallucinations, and I was always worried about whether I had a neurasthenia.
Otitis media complicated by cochleitis causes subsequent postural cochlear echo
When seeking medical treatment, the hearing test was normal, but the cochlear function test and auditory hair function test were abnormal. Computed tomography examination showed mild effusion in the mastoid sinuses of both temporal bones. It turned out to be otitis media complicated by cochlear inflammation, followed by positional cochlear recruitment.
According to the anatomy, the cochlea is composed of the scala vestibuli, scala tympani and scala tympanum. The scala vestibuli and scala tympanum contain perilymph, while the scala tympanum contains endolymph, which is secreted by the stria vascularis. Under normal conditions, the specific gravity of endolymph and perilymph are equal. When sound waves are transmitted from the round window into the vestibular scala canal, sound pressure is generated at the maximum resonance point, pushing the vestibular membrane, vibrating the organ of Cortis, and then pushing the basilar membrane, and the sound pressure changes from The scala tympanic tube is released, producing an auditory signal.
Ear strokes can also cause damage to the cochlea, causing echoes in the brain. Be careful
If the cochlea becomes inflamed due to bacterial infection, autoimmunity or allergy, the stria vascularis secretes endolymph with a high protein concentration and a high specific gravity, which will compress the scala tympanum or scala vestibuli in the direction of gravity. When sound waves are introduced, , less likely to vibrate the organ of Corti (the organ of Corti, where the auditory receptors are located). When the endolymphatic water waves are transmitted to the organ of Corti, the protrusions of the hair cells will bend, causing the hair cells to release neurotransmitters, stimulating sensation. Nerve endings, which produce nerve impulses).
When the body posture is changed, the gravity position of the middle canal changes, and the originally compressed basilar membrane or vestibular membrane suddenly decompresses. Because the endolymph fluid is relatively viscous, the auditory hairs swing but are not neatly aligned, which triggers the sound message. They are not transmitted to the brainstem at the same time, and are finally interpreted by the brain as “echoes”, which is called “reverberations” in medical terms.
For the treatment of this disease, it is recommended to give antibiotics, antihistamines or adrenocorticoids to clear the bacterial infection, reduce allergic reactions, and relieve cochlear inflammation so that it can secrete normal endolymph fluid. It should be noted that cochlear artery ischemia (otostroke) causes damage to the cochlea. When the blood vessels are unblocked and blood supply is restored, the cochlear vascular stria will also secrete endolymph with a high protein concentration, which is called “ischemic” “Cochleitis”, postural cochlear reverberation will also occur. People with similar symptoms should seek medical treatment correctly.
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