Predicting postoperative hemorrhage after pediatric tonsillectomy

医学 骨传导 植入 鼓室成形术 测听 人工耳蜗植入 纯音测听 听力学 听力损失 外科
作者
Mark C. Kendall
出处
期刊:International Journal of Pediatric Otorhinolaryngology [Elsevier]
卷期号:111: 195-195 被引量:1
标识
DOI:10.1016/j.ijporl.2018.06.027
摘要

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.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.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.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.
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