Abstract:Objective To analysis of related factors of poor hearing recovery after otoscopic tympanoplasty for static chronic suppurative otitis media.Methods A total of 131 patients with static chronic suppurative otitis media hospitalized in Sichuan Bayi Rehabilitation Center from Feb 2017 to Nov 2019 were selected. All patients underwent otoscopic tympanoplasty under general anesthesia. According to the results of pure tone audiometry at 6 months after operation and the difference of air bone gap (ABG), all the patients were divided into two groups:ABG ≤ 20 dB group and ABG>20 dB group. The causes of poor postoperative hearing improvement were analyzed by univariate analysis and the comprehensive effect of various factors on patients' hearing was analyzed by multivariate logistic regression.Results There were 81 cases in group G and 50 in group B. The differences in stapes, tympanic tensor tendon, tympanic mucosa, eustachian tube, types and materials of artificial ossicles between the two groups led to significant difference in postoperative hearing recovery (all P<0.05). Multivariate logistic regression analysis showed that the intact and active stapes (OR=0.606, 95%CI=0.393~0.919), the intact but poorly active stapes (OR=0.563, 95%CI=0.329~0.844), existence of tensor tympanic tendon (OR=1.913, 95%CI=1.508~2.449), unobstructed eustachian tube (OR=1.818, 95%CI=1.417~2.328) and titanium alloy artificial ossicle (OR=2.250, 95%CI=1.816~2.755) were independent risk factors of hearing recovery after otoscopic tympanoplasty for chronic suppurative otitis media.Conclusion Otoscopic tympanoplasty can improve the hearing of patients with chronic suppurative otitis media in quiescent stage to a certain extent. The hearing recovery is affected by stapes, tympanic tensor tendon, Eustachian tube function and artificial ossicular material.