Chronic suppurative otitis media (CSOM), also known as tubotympanic disease, is a chronic ear infection limited to the antero-inferior part of the middle ear cavity. It does not cause serious complications as the infection is open at both ends, allowing discharge to flow freely. The most common microorganisms isolated are gram-negative bacilli like Pseudomonas aeruginosa and Escherichia coli. Patients experience conductive hearing loss ranging from 30-40dB. Treatment involves aural toileting, topical antibiotics, and occasionally tympanoplasty to reconstruct the ear drum and ossicles. Tympanoplasty uses temporalis fascia grafts underlay or

1. Chronic suppurative otitis media Dr. T. Balasubramanian M.S. D.L.O.

28. Endaural view of ear drum

35. Underlay technique

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