Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Seoul Hospital, Seoul, Korea.
Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, 166 Gumi-Ro, Bundang-Gu, Seongnam-si, Gyeonggi-Do, Republic of Korea.
Eur Arch Otorhinolaryngol. 2020 Nov;277(11):3003-3012. doi: 10.1007/s00405-020-06025-4. Epub 2020 May 13.
The present study aimed to evaluate and compare the outcome of different bone conduction hearing implants (BCHIs) in subjects with mixed hearing loss (MHL) and single-sided deafness (SSD) in terms of audiometric results and compliance.
Twenty-one subjects with MHL and 18 subjects with SSD undergoing implantation of Baha connect, Baha attract, or Bonebridge were enrolled. Functional gain, effective gain, and usage rate of BCHIs were retrospectively reviewed.
As for MHL, the functional gain of three devices was not significantly different (p = 0.477), while the effective gain of Bonebridge was higher (- 8.8 [- 15.0, - 3.5] dB) than that of Baha connect (- 20.0 [- 26.3, - 11.3] dB, p = 0.037), especially at 0.5 kHz (p = 0.010) and 1 kHz (p = 0.014). In SSD subjects, the effective gain of Bonebridge was significantly higher than that of Baha attract (- 11.3 [- 15.0, - 7.5] vs - 21.3 [- 21.3, - 16.3] dB, p = 0.012), while the functional gain of Bonebridge and Baha attract was not different. The constant usage rate of BCHIs tends to be higher in MHL subjects [17/21 (82%)] than that in SSD subjects [10/18 (56%)]. In SSD subjects, the constant user group showed higher functional gain than the non-constant user group, with a significant difference at 3 kHz (35.0 [33.8, 45.0] vs 17.5 [10.0, 27.5] dB, p = 0.006).
Bonebridge shows a higher effective gain than Baha connect in the MHL group and Baha attract in the SSD group. The usage rate of BCHIs is lower in SSD than that in MHL. In SSD subjects, the constant user group tended to show higher functional gain than the non-constant user group. Irrespective of the device type, the tendency of higher functional gain of BCHIs, especially at mid frequencies, may potentially lead to yield good compliance in SSD, mandating a meticulous fitting strategy ensuring a sufficient mid-frequency functional gain in SSD.
本研究旨在评估和比较不同骨导听力植入物（BCHI）在混合性听力损失（MHL）和单侧耳聋（SSD）患者中的疗效，评估指标包括听力结果和佩戴依从性。
共纳入 21 例 MHL 患者和 18 例 SSD 患者，分别植入 Baha connect、Baha attract 和 Bonebridge。回顾性分析三种 BCHI 的功能增益、有效增益和使用率。
在 MHL 患者中，三种设备的功能增益无显著差异（p=0.477），但 Bonebridge 的有效增益（-8.8[-15.0，-3.5]dB）高于 Baha connect（-20.0[-26.3，-11.3]dB，p=0.037），尤其是在 0.5 kHz（p=0.010）和 1 kHz（p=0.014）频段。在 SSD 患者中，Bonebridge 的有效增益显著高于 Baha attract（-11.3[-15.0，-7.5]dB 比-21.3[-21.3，-16.3]dB，p=0.012），而 Bonebridge 和 Baha attract 的功能增益无显著差异。MHL 患者的 BCHI 使用率倾向于更高[17/21（82%）]，而 SSD 患者的 BCHI 使用率倾向于更低[10/18（56%）]。在 SSD 患者中，持续使用者的功能增益高于非持续使用者，在 3 kHz 频段有显著差异（35.0[33.8，45.0]dB 比 17.5[10.0，27.5]dB，p=0.006）。
在 MHL 患者中，Bonebridge 的有效增益高于 Baha connect，在 SSD 患者中高于 Baha attract。SSD 患者的 BCHI 使用率低于 MHL 患者。在 SSD 患者中，持续使用者的功能增益倾向于高于非持续使用者。无论设备类型如何，BCHI 功能增益较高的趋势，尤其是在中频，可能会导致 SSD 患者的佩戴依从性良好，这需要一种精细的适配策略，以确保 SSD 患者有足够的中频功能增益。
