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Eustachian tube dysfunction can be caused by a number of factors. Some common causes include the flu, allergies, a cold, and sinus infections. [6] In patients with chronic ear disease such as cholesteatoma and chronic discharge, studies showed that they have obstructive pathology at the ear side of the Eustachian tube.
With patulous Eustachian tube, variations in upper airway pressure associated with respiration are transmitted to the middle ear through the Eustachian tube. This causes an unpleasant fullness feeling in the middle ear and alters the auditory perception. Complaints seem to include muffled hearing and autophony.
- Sinus pressure - Fluid in the ear - Noise damage . ... Fluid in the ear means a buildup of mucus, or fluid, behind the eardrum. A healthy middle ear is filled with air, not fluid. Having fluid ...
As atmospheric pressure increases with descent, the eustachian tube collapses due to pressure within the middle ear being less than the external pressure, which causes pain. In severe cases, middle ear hemorrhage or tympanic membrane rupture can result. [16] Tympanic membrane rupture: disruption of the eardrum. This can be caused by a blow to ...
Under normal circumstances, the human Eustachian tube is closed, but it can open to let a small amount of air through to prevent damage by equalizing pressure between the middle ear and the atmosphere. Pressure differences cause temporary conductive hearing loss by decreased motion of the tympanic membrane and ossicles of the ear. [13]
Prolonged inflammation leads to middle ear swelling, ulceration, perforation, and attempts at repair with granulation tissue and polyps. This can worsen discharge and inflammation, potentially developing into CSOM, often associated with cholesteatoma. Symptoms may include ear discharge or pus seen only on examination. Hearing loss is common.
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