Junfeng Lin1, Suijun Chen2, Huasong Zhang1, Hao Xiong3, Zhigang Zhang1, Maojin Liang1, Xueyuan Zhang1, Haiwen Ye1, Yiqing Zheng4. 1. Departments of a Otolaryngology, Sun Yat-sen Memorial Hospital, Xinhua College, Sun Yat-Sen University, Guangzhou, China. 2. Departments of a Otolaryngology, Sun Yat-sen Memorial Hospital, Xinhua College, Sun Yat-Sen University, Guangzhou, China; Institute of Hearing and Speech-Language Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China; Department of Hearing and Speech Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China. Electronic address: chensuij@mail.sysu.edu.cn. 3. Departments of a Otolaryngology, Sun Yat-sen Memorial Hospital, Xinhua College, Sun Yat-Sen University, Guangzhou, China; Department of Hearing and Speech Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China. 4. Departments of a Otolaryngology, Sun Yat-sen Memorial Hospital, Xinhua College, Sun Yat-Sen University, Guangzhou, China; Institute of Hearing and Speech-Language Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China; Department of Hearing and Speech Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China. Electronic address: zhengyiq@mail.sysu.edu.cn.
Abstract
OBJECTIVE: To determine the efficacy of the application of the Implantable Hearing Aids and Bone Conduction Implant System in patients with bilateral congenital deformation of the external and middle ear. METHODS: twenty patients with bilateral congenital malformation of the external and middle ear were included in the study. Implantable Hearing Aids implantation was performed in ten patients, and Bone Conduction Implant System implantation was performed in ten patients. Audiometric tests, including pure-tone audiometry and speech discrimination in the free field were performed pre-operatively and post-operatively. RESULTS: Implantable Hearing Aids and Bone Conduction Implant System implantation were performed successfully in all patients. The mean pure-tone threshold improvement with Implantable Hearing Aids or Bone Conduction Implant System activation in the free filed pure tone audiometry was 25 dB and ranged from 0.25 to 4 kHz. Mean free field speech discrimination in quiet was 80% at 65 dB compared to 18% pre-operatively. The mean pure-tone threshold improvement with Bone Conduction Implant System was 25.5 dB better than 18.2 dB with Implantable Hearing Aids. The mean free filed speech discrimination in quite improvement with Bone Conduction Implant System was 66% better than 58% with Implantable Hearing Aids. CONCLUSION: Implantable Hearing Aids or Bone Conduction Implant System are effective options for improving hearing in patients with bilateral congenital deformation of the external and middle ear. The procedure is safe and effective, and its indications are wider than those of tympanoplasty for such cases. Furthermore, the Bone Conduction Implant System is better than Implantable Hearing Aids, tympanoplasty and hearing aids.
OBJECTIVE: To determine the efficacy of the application of the Implantable Hearing Aids and Bone Conduction Implant System in patients with bilateral congenital deformation of the external and middle ear. METHODS: twenty patients with bilateral congenital malformation of the external and middle ear were included in the study. Implantable Hearing Aids implantation was performed in ten patients, and Bone Conduction Implant System implantation was performed in ten patients. Audiometric tests, including pure-tone audiometry and speech discrimination in the free field were performed pre-operatively and post-operatively. RESULTS: Implantable Hearing Aids and Bone Conduction Implant System implantation were performed successfully in all patients. The mean pure-tone threshold improvement with Implantable Hearing Aids or Bone Conduction Implant System activation in the free filed pure tone audiometry was 25 dB and ranged from 0.25 to 4 kHz. Mean free field speech discrimination in quiet was 80% at 65 dB compared to 18% pre-operatively. The mean pure-tone threshold improvement with Bone Conduction Implant System was 25.5 dB better than 18.2 dB with Implantable Hearing Aids. The mean free filed speech discrimination in quite improvement with Bone Conduction Implant System was 66% better than 58% with Implantable Hearing Aids. CONCLUSION: Implantable Hearing Aids or Bone Conduction Implant System are effective options for improving hearing in patients with bilateral congenital deformation of the external and middle ear. The procedure is safe and effective, and its indications are wider than those of tympanoplasty for such cases. Furthermore, the Bone Conduction Implant System is better than Implantable Hearing Aids, tympanoplasty and hearing aids.
Authors: Marcos Antonio de Souza; Santiago Luis Vallejos Riart; Stephanie Rugeri de Souza; Rubens de Brito; Ricardo Ferreira Bento Journal: Int Arch Otorhinolaryngol Date: 2022-02-04