What is chronic otitis media
Otitis media is an inflammatory disease involving all or part of the middle ear (including eustachian tube, tympanic chamber, tympanic sinus and mastoid air chamber). It can be divided into non suppurative and suppurative. Non suppurative otitis media include secretory otitis media and barotrauma otitis media. Suppurative otitis media can be divided into acute and chronic. Specific inflammation is rare, such as tuberculous otitis media. Chronic suppurative otitis media refers to the chronic suppurative inflammation of the middle ear mucosa, periosteum or bone, which often coexists with chronic mastoiditis.
Most of them are caused by delayed treatment or improper treatment of acute suppurative otitis media, or the direct continuation of acute necrotizing otitis media. The course of disease is generally more than 6-8 weeks. The main clinical features are recurrent ear abscess, perforation of tympanic membrane and hearing loss. Severe cases can cause intracranial and external complications.
Causes of chronic otitis media
Acute suppurative otitis media treatment is not timely or improper drug use, poor physical resistance, virulence of pathogenic bacteria is too strong, is the main reason for chronic acute otitis media. Chronic lesions in nasal cavity, paranasal sinuses and pharynx are another reason for the chronic development of otitis media. The common pathogenic bacteria are Proteus, Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, etc. The course of disease is generally more than 6-8 weeks. The main clinical features are recurrent ear abscess, perforation of tympanic membrane and hearing loss. Severe cases can cause intracranial and external complications.