Objectives: To identify the predictors of tympanoplasty success including graft success, hearing outcomes, and recovery time. Methods: Patients who underwent a tympanoplasty between January 2019 and July 2022 were enrolled. Hearing outcomes were measured by air-bone gap from pure tone. Demographic data of the patient, surgical parameters, and Ossiculoplasty Outcome Parameter Staging (OOPS) were reviewed and evaluated to predict the success of tympanoplasty using univariate and multivariate logistic or Cox regression analyzes. Results: Of 138 patients, 151 procedures were studied. At the 6-month follow-up visit, the overall graft success was 90.7% and the overall hearing success was 40.4%. There was a correlation between the OOPS index and postoperative hearing success (Spearman r = 0.322). Blood loss > 10 ml and OOPS ≥ 4 were independent predictors of hearing failure. Blocked aditus ad antrum and blood loss > 10 ml were independent predictors of prolonged recovery time. Conclusions: The OOPS index exhibits a strong predictive influence on hearing outcomes after tympanoplasty. A predictive model that combines the amount of blood loss and blockage of aditus ad antrum can serve as a useful tool in predicting postoperative recovery time.
Keywords: hearing; mastoidectomy; prognostic factors; tympanoplasty.