Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL, USA.
North Alabama ENT Associates, Huntsville, USA.
J Laryngol Otol. 2021 Apr;135(4):304-309. doi: 10.1017/S0022215121000335. Epub 2021 Mar 22.
This study aimed to evaluate hearing outcomes and device safety in a large, single-surgeon experience with the totally implantable active middle-ear implants.
This was a retrospective case series review of 116 patients with moderate-to-severe sensorineural hearing loss undergoing implantation of active middle-ear implants.
Mean baseline unaided pure tone average improved from 57.6 dB before surgery to 34.1 dB post-operatively, signifying a mean gain in pure tone average of 23.5 dB (p = 0.0002). Phonetically balanced maximum word recognition score improved slightly from 70.5 per cent to 75.8 per cent (p = 0.416), and word recognition score at a hearing level of 50 dB values increased substantially from 14.4 per cent to 70.4 per cent (p < 0.0001). Both revision and explant rates were low and dropped with increasing surgeon experience over time.
This study showed excellent post-operative hearing results with active middle-ear implants with regard to pure tone average and word recognition score at a hearing level of 50 db. Complication rates in this case series were significantly lower with increasing experience of the surgeon. Active middle-ear implants should be considered in appropriate patients with moderate-to-severe sensorineural hearing loss who have struggled with conventional amplification and are good surgical candidates.
本研究旨在评估在一位经验丰富的外科医生的大量单病例经验中，完全可植入式有源中耳植入物的听力结果和设备安全性。
这是一项回顾性病例系列研究，共纳入 116 例中重度感音神经性听力损失患者，行有源中耳植入术。
平均基线未助听听阈纯音平均值从术前的 57.6dB 改善至术后的 34.1dB，表明纯音平均值平均提高了 23.5dB（p=0.0002）。语音平衡最大言语识别率略有提高，从 70.5%提高至 75.8%（p=0.416），50dB 听力级的言语识别率显著提高，从 14.4%提高至 70.4%（p<0.0001）。翻修率和取出率均较低，且随着外科医生经验的增加而降低。
本研究显示，有源中耳植入物在纯音平均值和 50dB 听力级的言语识别率方面具有出色的术后听力结果。在此病例系列中，随着外科医生经验的增加，并发症发生率显著降低。对于那些使用传统放大技术效果不佳且适合手术的中重度感音神经性听力损失患者，应考虑使用有源中耳植入物。
