Salmon Caroline, Barriat Sébastien, Demanez Laurent, Magis David, Lefebvre Philippe
Department of Otorhinolaryngology, University of Lix00E8;ge, Lix00E8;ge, Belgium.
Audiol Neurootol. 2015;20(5):330-6. doi: 10.1159/000433510. Epub 2015 Aug 28.
The efficacy of stapedotomies performed on patients with small air-bone gaps (<25 dB) was compared with the efficacy of the operation in patients who had otosclerosis with high air-bone gaps (≥25 dB).
This retrospective study evaluates the short-term postoperative air and bone conduction thresholds and air-bone gaps after 182 CO2 laser stapedotomies.
A significantly smaller air-bone gap and lower air conduction thresholds after surgery were observed in the group of patients who underwent surgery with preoperative air-bone gaps of less than 25 dB. Bone conduction thresholds improve in the group with small air-bone gaps after surgery.
The results after stapedotomies are good even if the preoperative air-bone gap is small and the overall risk of hearing deterioration due to stapes surgery remains low.
比较对气骨导差小（<25 dB）的患者行镫骨切除术的疗效与对气骨导差大（≥25 dB）的耳硬化症患者行该手术的疗效。
这项回顾性研究评估了182例二氧化碳激光镫骨切除术后的短期气导和骨导阈值以及气骨导差。
术前气骨导差小于25 dB的手术患者组术后气骨导差明显更小，气导阈值更低。术后气骨导差小的组骨导阈值有所改善。
即使术前气骨导差小，镫骨切除术后的效果也良好，且镫骨手术导致听力恶化的总体风险仍然较低。
