<![CDATA[Introduction: Chronic suppurative otitis media (CSOM) is an inflammation of the middle ear characterized by a perforation of the tympanic membrane with mucoid or mucopurulent secretions that persists or intermittently for 8 weeks. Tympanic membrane perforation causes a decrease in the surface area of the tympanic membrane for sound transmission and causes sound waves to be directly transmitted to the middle ear. CSOM may cause hearing loss from mild to deafness. Case reports: This research is a case series was conducted at the ENT Department in Sultan Agung Islamic Hospital Semarang during September 2022-January 2023. A total of 7 patients were admitted to the ENT Department in Sultan Agung Isalmic Hospital with diagnosis of CSOM. 6 patients (86%) had hearing loss and 1 patient (14%) had only tinnitus without any hearing loss. As many as 67% had CHL and 19% had MHL and SNHL. The most common perforations were found in the AI quadrant (43%) followed by the AS and PI quadrants (28.5% each). Patients with perforation experienced the heaviest degree of hearing loss in the AS quadrant (82.5db) and the mildest in the AI quadrant (32.5db). Conclusion: Patients with perforations in the PI quadrant have a worse degree of hearing loss than those with perforations in the AI quadrant, especially in cases of Conductive Hearing Loss. Patients with a larger perforation area have a worse degree of hearing loss than those with smaller area of perforation.]]>
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