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Abstract
Background: The current surgical treatment of otosclerosis is stapes surgery; however, few studies have reported the predictors of surgical outcomes.
Aim/objective: This study aimed to investigate the prognostic predictors for postoperative hearing outcomes.
Materials and methods: A total of 181 ears in 152 patients undergoing stapes surgery at a tertiary referral centre in Taiwan from 1996 to 2016 were retrospectively enrolled and preoperative and intraoperative parameters were obtained. Univariate and multivariate analyses were used to determine independent predictors of postoperative hearing outcomes. A regression model was also established. Hearing success was defined as a postoperative air-bone gap (ABG) ≤10 dB.
Results: In univariate analysis, the absence of floating footplate during surgery (p = .003) and small preoperative ABG (p = .014) were associated with successful hearing outcomes. Multivariate logistic regression analysis further revealed the absence of floating footplate during surgery (p = .010) and small preoperative ABG (p = .015) remained independent predictors of postoperative hearing success.
Conclusions and significance: Preoperative audiometric data and intraoperative finding may provide surgeons and patients with a better insight into surgical outcomes.
Chinese abstract
背景：目前耳硬化症的外科治疗主要是镫骨手术, 但是很少有研究报道该手术结果的预测因素。
目的：本研究旨在探讨术后听力结果预后的预测因素。
材料与方法：回顾性分析1996-2016年台湾第三转诊中心152例镫骨手术患者181个耳的临床资料, 获得术前及术中参数。采用单变数和多变数分析确定术后听力预后的独立预测因素。建立了回归模型。听力成功被定义为术后气骨间隙（ABG）≤10dB。
结果：在单变数分析中, 术中无浮足板（p=0.003）和术前小ABG（p=0.014）与良好的听力结果有关。多变数逻辑回归分析进一步显示术中无浮足板（p=.010）和术前小ABG（p=.015）仍然是术后听力良好的独立预测因素。
结论及意义：术前测听资料及术中发现可让外科医师及患者更深入地理解手术结果。
Disclosure statement
No potential conflict of interest was reported by the author(s).