Müller Alexander, Mir-Salim Parwis, Zellhuber Nina, Helbig Ralf, Bloching Marc, Schmidt Tobias, Koscielny Sven, Dziemba Oliver C, Plontke Stefan K, Rahne Torsten
*ORL Department Friedrichshain Clinic, Vivantes Hearing Center, Berlin †Department of Otorhinolaryngology, Head and Neck Surgery and Communication Disorders, HELIOS-Clinic Berlin-Buch ‡Department of Otorhinolaryngology, Institute of Phoniatry/Pedaudiology, Jena University Hospital, Friedrich-Schiller-University Jena, Jena §Department of Otorhinolaryngology, Head & Neck Surgery, University Medicine of Greifswald, Greifswald ||Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany.
Otol Neurotol. 2017 Jul;38(6):809-814. doi: 10.1097/MAO.0000000000001412.
The efficiency of vibroplasty (coupler-floating mass transducer [FMT] assembly) can be monitored by direct stimulation of the inner ear through the active middle-ear implant system and comparison of the vibroplasty in vivo threshold and the postoperative bone-conduction pure-tone threshold. The aim of this study was to compare the vibroplasty in vivo threshold with the postoperative speech recognition in patients with a high preoperative maximum word recognition score.
Retrospective cohort study of German-speaking patients implanted with a vibrating ossicular prosthesis (VORP) 502 or VORP 503 and high preoperative maximum word recognition score between the years of 2011 and 2015.
Multicenter study of four German centers.
Twenty-three active middle-ear implant users.
Rehabilitative.
Bone-conduction pure-tone and vibroplasty thresholds, postoperative aided word recognition score (WRS) at 65 dB SPL (sound pressure level) and preoperative maximum WRS with Freiburg monosyllabic words.
The mean postoperative aided WRS at 65 dB SPL was 82%. An increasing difference between vibroplasty thresholds and bone-conduction thresholds was associated with a higher discrepancy between the unaided maximum WRS and the postoperative aided WRS. Only if this difference was less than 20 dB, an articulation index of 0.5 (WRS = 75%) or more was achieved.
Audiological outcome after vibroplasty depends on the coupling efficiency reflected by the vibroplasty threshold.
通过有源中耳植入系统直接刺激内耳，并比较振动成形术（耦合器 - 浮动质量换能器[FMT]组件）的体内阈值与术后骨导纯音阈值，来监测振动成形术的效率。本研究的目的是比较术前最大单词识别分数较高的患者的振动成形术体内阈值与术后言语识别情况。
对2011年至2015年间植入振动听骨假体（VORP）502或VORP 503且术前最大单词识别分数较高的德语患者进行回顾性队列研究。
德国四个中心的多中心研究。
23名有源中耳植入使用者。
康复治疗。
骨导纯音和振动成形术阈值、术后在65分贝声压级（SPL）时的助听听阈单词识别分数（WRS）以及术前使用弗莱堡单音节词的最大WRS。
术后在65分贝SPL时的平均助听听阈WRS为82%。振动成形术阈值与骨导阈值之间的差异增大与未助听最大WRS和术后助听听阈WRS之间的差异增大相关。只有当这种差异小于20分贝时，才能达到清晰度指数0.5（WRS = 75%）或更高。
振动成形术后的听力学结果取决于由振动成形术阈值反映的耦合效率。
