Department of Otorhinolaryngology-Head and Neck Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea.
Research Institute of Hearing Enhancement, Yonsei University Wonju College of Medicine, Wonju, Korea.
Cochlear Implants Int. 2021 Sep;22(5):270-282. doi: 10.1080/14670100.2021.1903713. Epub 2021 Mar 22.
To evaluate the overall functional and audiological benefits in unilateral hearing loss, as well as performance improvements with Cochlear™ Baha® Attract System with Baha® 5 sound processor.
We performed a prospective study. Fourteen consecutive adult patients with unilateral hearing loss who were audiologically eligible for Baha® Attract were included in this study. All patients were followed-up, and a series of tests were performed in the sound field before surgery, one, two, three, and 6 months after surgery.
Patients were categorized based on their hearing impairment type and severity. Ten patients had conductive hearing loss (CHL), or mixed hearing loss (MHL), and four patients had sensorineural hearing loss (SNHL). The hearing threshold in the sound field aided with Baha® Attract was similar to the preoperative bone conduction hearing threshold of the better ear. The results of the speech audiometry improved post-operatively, but they did not match that of the better ear before surgery. The overall score of the hearing-in-noise test was gradually improved from one month to 6 months after surgery. The results of the sound localization test for SNHL patients were not as good as those for CHL or MHL. All the questionnaires demonstrated additional benefits that implied performance improvements.
The Baha® Attract provides enough auditory benefits and performance improvements for hearing impaired patients, though there are different benefits according to the type of hearing loss. Clinicians need to counsel the unilateral hearing loss patients for Baha® Attract System carefully, according to their type of hearing loss.
评估单侧听力损失的整体功能和听力获益，以及 Cochlear™ Baha® Attract 系统与 Baha® 5 声音处理器的使用对患者表现的改善情况。
我们进行了一项前瞻性研究。本研究纳入了 14 例单侧听力损失且符合 Baha® Attract 适应证的成年患者。所有患者均进行了随访，并在术前、术后 1、2、3 和 6 个月在声场中进行了一系列测试。
根据听力损失类型和严重程度对患者进行分类。10 例患者为传导性听力损失（CHL）或混合性听力损失（MHL），4 例患者为感音神经性听力损失（SNHL）。Baha® Attract 声场助听后的听力阈值与健耳术前骨导听力阈值相似。术后言语测听结果有所改善，但不及术前健耳。术后 1 个月至 6 个月，噪声下的听力测试总评分逐渐提高。SNHL 患者的声源定位测试结果不如 CHL 或 MHL 患者。所有问卷均表明有额外获益，提示患者表现有所改善。
Baha® Attract 可为听力受损患者提供足够的听觉获益和表现改善，但根据听力损失类型，获益程度有所不同。临床医生需要根据患者的听力损失类型，仔细为单侧听力损失患者提供 Baha® Attract 系统咨询。
