TY - JOUR
T1 - Postoperative optimization of cochlear implantation for single sided deafness and asymmetric hearing loss
T2 - a systematic review
AU - Andren, Kristofer G.
AU - Duffin, Kevin
AU - Ryan, Matthew T.
AU - Riley, Charles A.
AU - Tolisano, Anthony M.
N1 - Publisher Copyright:
© 2023 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2023
Y1 - 2023
N2 - Objective: Identify and evaluate the effectiveness of methods for improving postoperative cochlear implant (CI) hearing performance in subjects with single-sided deafness (SSD) and asymmetric hearing loss (AHL). Data Sources: Embase, PubMed, Scopus. Review Methods: Systematic review and narrative synthesis. English language studies of adult CI recipients with SSD and AHL reporting a postoperative intervention and comparative audiometric data pertaining to speech in noise, speech in quiet and sound localization were included. Results: 32 studies met criteria for full text review and 6 (n = 81) met final inclusion criteria. Interventions were categorized as: formal auditory training, programming techniques, or hardware optimization. Formal auditory training (n = 10) found no objective improvement in hearing outcomes. Experimental CI maps did not improve audiologic outcomes (n = 9). Programed CI signal delays to improve synchronization demonstrated improved sound localization (n = 12). Hardware optimization, including multidirectional (n = 29) and remote (n = 11) microphones, improved sound localization and speech in noise, respectively. Conclusion: Few studies meeting inclusion criteria and small sample sizes highlight the need for further study. Formal auditory training did not appear to improve hearing outcomes. Programming techniques, such as CI signal delay, and hardware optimization, such as multidirectional and remote microphones, show promise to improve outcomes for SSD and AHL CI users.
AB - Objective: Identify and evaluate the effectiveness of methods for improving postoperative cochlear implant (CI) hearing performance in subjects with single-sided deafness (SSD) and asymmetric hearing loss (AHL). Data Sources: Embase, PubMed, Scopus. Review Methods: Systematic review and narrative synthesis. English language studies of adult CI recipients with SSD and AHL reporting a postoperative intervention and comparative audiometric data pertaining to speech in noise, speech in quiet and sound localization were included. Results: 32 studies met criteria for full text review and 6 (n = 81) met final inclusion criteria. Interventions were categorized as: formal auditory training, programming techniques, or hardware optimization. Formal auditory training (n = 10) found no objective improvement in hearing outcomes. Experimental CI maps did not improve audiologic outcomes (n = 9). Programed CI signal delays to improve synchronization demonstrated improved sound localization (n = 12). Hardware optimization, including multidirectional (n = 29) and remote (n = 11) microphones, improved sound localization and speech in noise, respectively. Conclusion: Few studies meeting inclusion criteria and small sample sizes highlight the need for further study. Formal auditory training did not appear to improve hearing outcomes. Programming techniques, such as CI signal delay, and hardware optimization, such as multidirectional and remote microphones, show promise to improve outcomes for SSD and AHL CI users.
KW - Asymmetric hearing loss
KW - Cochlear implant
KW - Rehabilitation
KW - Single sided deafness
KW - Unilateral hearing loss
UR - http://www.scopus.com/inward/record.url?scp=85165640465&partnerID=8YFLogxK
U2 - 10.1080/14670100.2023.2239512
DO - 10.1080/14670100.2023.2239512
M3 - Review article
C2 - 37490782
AN - SCOPUS:85165640465
SN - 1467-0100
VL - 24
SP - 342
EP - 353
JO - Cochlear Implants International
JF - Cochlear Implants International
IS - 6
ER -