Pre and Intraoperative Factors Affecting Degree of Hearing in Tubotympanic Otitis Media

Objective: chronic suppurative otitis media (CSOM) defined as a chronic inflammation of the middle ear and mastoid cavity associated with recurrent ear discharges or otorrhoea through a tympanic membrane perforation. CSOM classified into two categories: tubotympanic (TT) and attico-antral disease. CSOM display different degree of hearing loss (HL). There are many factors affecting HL in TT OM as site and size of