Hearing treshold before and after middle ear surgery in chronic suppurative otitis media (CSOM)

Abstract

Hearing loss is a common symptom in chronic suppurative otitis media (CSOM),
often cause social communication disturbance. Canal wall up tympanoplasty
and canal wall down tympanoplasty are surgery procedures for managing this
disease that no response to convensional treatment. These surgery procedures
should consider to hearing function impact. The aim of this study was to evaluate
the difference hearing threshold between before and after middle ear surgery
on CSOM patients. It was an historical cohort study conducted from January
2015 to December 2016 involving CSOM patients who underwent canal wall up
tympanoplasty surgery and canal wall down tympanoplasty in The Otology Division,
Departement of Ear, Nose, Throat, Head and Neck Health, Dr. Sardjito General
Hospital, Yogyakarta. The inclusion criteria included basic data, diagnostics,
surgery reports, and audiometry results before and 3 months postoperatively,
while the exclusion criteria were not complete medical record data. Total of 64
patients with CSOM were involved in this study consisting of 32 patients who
underwent canal wall up tympanoplasty and 32 patients who underwent canal wall
down tympanoplasty. Significantly different in the increasing of hearing threshold
between before and after canal wall up tympanoplasty surgery compared to the
canal wall down tympanoplasty was observed (p = 0.021). In addition, surgical
technique was the main factor affecting postoperative hearing threshold in CSOM
patients (p < 0.05). In conclusion, the increasing of hearing threshold in CSOM
patients underwent canal wall up tympanoplasty surgery is better than those underwent
canal wall down tympanoplasty.