Ossicular pathology in chronic suppurative otitis media

Thangaraj, P S K (2010) Ossicular pathology in chronic suppurative otitis media. Masters thesis, Madurai Medical College, Madurai.


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In developing countries, chronic suppurative otitis media accounted for 60 to 80% of middle ear disease. Chronic suppurative otitis media is a disease affecting especially people with poor health, hygiene, and nutrition throughout the world. If improperly treated in childhood, chronic suppurative otitis media in children will often continue into adulthood. Up to one-third of the population in developing countries has their quality of life affected by CSOM and its precursors. In children in developing countries chronic suppurative otitis media is the most common cause of hearing impairment. Chronic suppurative otitis media of unsafe type, by its most common complication can produce hearing disability. The hearing defect usually occurs due to ossicular interruption, and not frequently by fixation. The challenge of hearing improvement depends on proper ossicular reconstruction and its long term stability. In the past very many type of biomaterials were used for ossicular reconstruction. The end result of biomaterials regarding stability of hearing is inferior to that of auto or homograft Ossiles. So there is immense demand for auto and homograft ossicle to have ossicular bank. In this prospective study the frequency of ossicular defects and histopathology were analysed. The long process of the incus is the most commonly eroded part of an ossicle in unsafe chronic suppurative otitis media, followed by handle and head of malleus. Bone absorption is the most frequent pathological change and is usually observed where the granulation, inflammatory or connective tissue with fibroblast is adjacent to the ossicle. The high incidence of bone changes seen in the ossicles in unsafe chronic suppurative otitis media suggests that their retention during mastoid surgery may not be as beneficial in producing the long term results.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Ossicular pathology ; chronic suppurative otitis media.
Subjects: MEDICAL > Otolaryngology
Depositing User: Devi S
Date Deposited: 07 Jul 2017 08:58
Last Modified: 31 Mar 2018 08:31
URI: http://repository-tnmgrmu.ac.in/id/eprint/1229

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