Document Detail

Clinical selection criteria for a second cochlear implant for bimodal listeners.
MedLine Citation:
PMID:  22772002     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare the speech perception benefit, provided by a contralateral hearing aid (HA) or a second cochlear implant (CI).
STUDY DESIGN: Repeated measures.
PATIENTS: A total of 25 adult subjects participated in the study, including 12 bilateral (10 female and 2 male patients) and 13 bimodal (6 female and 7 male subjects) users. All bilateral users were sequentially implanted. The bimodal users were separated into a poor group (n = 5, aided pure-tone average (PTA) of 55 dB HL or greater at audiometric frequencies of 1 kHz or lesser) and a good group (n = 8, aided PTA < 55 dB HL).
MAIN OUTCOME MEASURES: Consonant, vowel, and sentence recognition was measured in quiet and noise at +5 dB and +10 dB signal-to-noise ratios (SNRs). Speech recognition performance was evaluated under three listening conditions: CI alone, HA alone, and CI+HA for bimodal users; first CI alone, second CI alone, and first CI + second CI for bilateral users when speech and noise were presented from the front.
RESULTS: There was no significant difference in the binaural benefit between the good bimodal and bilateral groups in vowel and sentence recognition. However, the binaural benefit is significantly better in the bilateral group than in the poor bimodal group for all 3 speech measures.
CONCLUSION: These results suggest that the aided pure-tone average at audiometric frequencies of 1 kHz or lesser may serve as one of the clinical criteria for the recommendation of whether bimodal patients should consider a second cochlear implant to maximize their binaural listening ability.
Yang-soo Yoon; You-Ree Shin; Qian-Jie Fu
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology     Volume:  33     ISSN:  1537-4505     ISO Abbreviation:  Otol. Neurotol.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-08-15     Completed Date:  2013-01-23     Revised Date:  2013-09-03    
Medline Journal Info:
Nlm Unique ID:  100961504     Medline TA:  Otol Neurotol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1161-8     Citation Subset:  IM    
Division of Communication and Neuroscience, House Research Institute, Los Angeles, California 90057, USA.
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MeSH Terms
Aged, 80 and over
Cochlear Implantation*
Cochlear Implants*
Hearing Loss, Sensorineural / therapy*
Middle Aged
Patient Selection
Speech Perception / physiology*
Treatment Outcome
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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