Daher Ghazal S, Thompson Emily S, Thomason Meredith, Sankar George B, Hogan Cynthia A, Carlson Matthew L
Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN, United States of America.
Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN, United States of America.
Am J Otolaryngol. 2025 Jan-Feb;46(1):104513. doi: 10.1016/j.amjoto.2024.104513. Epub 2024 Nov 13.
To evaluate audiological outcomes of transcutaneous devices among individuals with mixed hearing loss (MHL) who underwent implantation with the Cochlear™ Osia® and Med-El Bonebridge™ devices.
Adults with MHL in at least one ear, including a best bone conduction (BBC) threshold of 30 dB HL or poorer, and air-bone gaps of 15 dB HL or more at one or more frequencies were implanted with the Cochlear™ Osia® or Med-El Bonebridge™ devices for MHL. Four-frequency pure tone average (PTA) was calculated for aided thresholds and compared to preoperative PTAs for BBC thresholds.
Among the study participants, 11 were implanted with Osia, and 11 were implanted with Bonebridge. In the Osia group, the BBC PTA averaged 23.6 dB, which was not significantly different from the aided PTA of 27.0 dB (P = 0.2). In the Bonebridge group, the BBC PTA averaged 23.3 dB while the aided PTA was significantly poorer at 32.9 dB (P = 0.03). In both groups, aided sound field thresholds were worse than BBC thresholds overall except for a 7 dB improvement at 2000 Hz in the Osia group (P < 0.05).
We highlight important limitations of current transcutaneous bone conduction systems for rehabilitation of MHL. Sound field outcomes for Osia and Bonebridge devices are limited by the BBC thresholds of either ear; these devices do not provide significant gain or "overclosure" beyond BBC thresholds. While both groups generally experienced declines in aided thresholds compared to best conduction thresholds, the Osia implant exhibited an exception of a 7 dB improvement at 2000 Hz.
评估接受科利耳™奥西阿®（Cochlear™ Osia®）和梅德-El骨桥™（Med-El Bonebridge™）设备植入的混合性听力损失（MHL）患者的听觉效果。
至少一只耳朵患有MHL的成年人，包括最佳骨导（BBC）阈值为30 dB HL或更差，且在一个或多个频率上气骨间隙为15 dB HL或更大，接受了用于MHL的科利耳™奥西阿®或梅德-El骨桥™设备植入。计算助听阈值的四频率纯音平均（PTA），并与术前BBC阈值的PTA进行比较。
在研究参与者中，11人植入了奥西阿设备，11人植入了骨桥设备。在奥西阿组中，BBC PTA平均为23.6 dB，与27.0 dB的助听PTA无显著差异（P = 0.2）。在骨桥组中，BBC PTA平均为23.3 dB，而助听PTA明显较差为32.9 dB（P = 0.03）。在两组中，除奥西阿组在2000 Hz处有7 dB的改善外（P < 0.05），总体上助听声场阈值比BBC阈值更差。
我们强调了当前经皮骨传导系统用于MHL康复的重要局限性。奥西阿和骨桥设备的声场效果受任一只耳朵的BBC阈值限制；这些设备在BBC阈值之外没有提供显著的增益或“过度闭合”。虽然与最佳传导阈值相比，两组的助听阈值总体上都有所下降，但奥西阿植入物在2000 Hz处有7 dB改善的例外情况。
