Evaluation of hearing limits post tympanoplasty in patients with chronic suppurative otitis media

Background: Chronic suppurative otitis media (CSOM) causes partial or complete damage to the tympanic membrane and ossicles, causing hearing loss in the form of conductive and mixed hearing loss with a decrease of up to 60 dB. This study aimed to evaluate the hearing threshold before and after tympanoplasty surgery in CSOM patients. Methods: This type of research was carried out in a retrospective descriptive manner. The materials in this study were the medical records of CSOM patients who underwent canal wall up (CWU) tympanoplasty and canal wall down (CWD) tympanoplasty at the outpatients of ear, nose, and throat – head and neck surgery (ENT-HNS) Otology Division Dr. Soetomo Hospital Surabaya for the period January 1, 2018 to December 31, 2018 with a total of 51 patients. This study analyzed with the Wilcoxon test. Results: The mean age was 30.96 years (51% female and 49% male). Postoperatively 40 (78.5%) patients experienced an increase in hearing threshold, 10 (19.6%) patients experienced a decrease and 1 (1.9%) patient remained. The average increase in air-bone gap (ABG) pre and post tympanoplasty surgery was 9.78 dB, from 38.92 dB to 29.14 dB. Conclusion: There was an increase in hearing threshold after tympanoplasty.