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Review
. 2024 Sep 24;91(1):101514.
doi: 10.1016/j.bjorl.2024.101514. Online ahead of print.

Brazilian Society of Otology task force - single sided deafness - recommendations based on strength of evidence

Robinson Koji Tsuji  1 , Rogério Hamerschmidt  2 , Joel Lavinsky  3 , Felippe Felix  4 , Vagner Antonio Rodrigues Silva  5
Affiliations
Review

Brazilian Society of Otology task force - single sided deafness - recommendations based on strength of evidence

Robinson Koji Tsuji et al. Braz J Otorhinolaryngol. .

Abstract

Objective: To make evidence-based recommendations for the treatment of Single-Sided Deafness (SSD) in children and adults.

Methods: Task force members were instructed on knowledge synthesis methods, including electronic database search, review and selection of relevant citations, and critical appraisal of selected studies. Articles written in English or Portuguese on SSD were eligible for inclusion. The American College of Physicians' guideline grading system and the American Thyroid Association's guideline criteria were used for critical appraisal of evidence and recommendations for therapeutic interventions.

Results: The topics were divided into 3 parts: (1) Impact of SSD in children; (2) Impact of SSD in adults; and (3) SSD in patients with temporal bone tumors.

Conclusions: Decision-making for patients with SSD is complex and multifactorial. The lack of consensus on the quality of outcomes and on which measurement tools to use hinders a proper comparison of different treatment options. Contralateral routing of signal hearing aids and bone conduction devices can alleviate the head shadow effect and improve sound awareness and signal-to-noise ratio in the affected ear. However, they cannot restore binaural hearing. Cochlear implants can restore binaural hearing, producing significant improvements in speech perception, spatial localization of sound, tinnitus control, and overall quality of life. However, cochlear implantation is not recommended in cases of cochlear nerve deficiency, a relatively common cause of congenital SSD.

Keywords: Bone conduction devices; Cochlear implants; Contralateral routing of signal devices; Hearing loss; Single-sided deafness.

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