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Delayed cochlear implantation in adults with prelingual severe-to-profound hearing loss

 Yang, Won Sun  ;  Moon, In Seok  ;  Kim, Hee Nam  ;  Lee, Won-Sang  ;  Lee, Sung Eun  ;  Choi, Jae Young 
 OTOLOGY & NEUROTOLOGY, Vol.32(2) : 223-228, 2011 
Journal Title
Issue Date
Adolescent ; Adult ; Audiometry, Pure-Tone ; Auditory Threshold ; Cochlear Implantation* ; Cochlear Implants ; Communication ; Deafness/therapy* ; Education ; Female ; Functional Laterality/physiology ; Humans ; Male ; Speech Perception ; Treatment Outcome ; Young Adult
Cochlear implantation ; Prelingual deaf adults ; Residual hearing ; Speech perception tests
OBJECTIVES: To evaluate the results of late cochlear implantation in prelingually deaf patients with significant residual hearing loss and to evaluate patient factors relevant to postoperative auditory outcomes in this patient group. STUDY DESIGN: Analysis of results of cochlear implantation using postoperative speech perception test scores per each condition. SETTING: Tertiary referral center. PATIENTS: Thirty-two subjects with severe to profound hearing loss that developed before the age of 4. INTERVENTIONS: Subjects were implanted at a mean age of 24.8 years (range, 16-44) with Nucleus CI24 (n = 18, 56%), Clarion HiRes 90K (n = 11, 34%), and Medel PULSA (n = 3, 10%) device. Details of etiology, duration of deafness, hearing aid history, hearing thresholds before operation, communication mode, and educational environment were investigated. Speech perception tests were performed preoperatively and 12 months after the operation. MAIN OUTCOME MEASURES: Postoperative speech perception test scores between different options within patient group. RESULTS: : The results showed significant improvement in open set speech perception (sentence) scores after the implantation (mean scores from 7.0 to 46.7, p < 0.05). Preoperative hearing of better ear and preoperative speech perception scores correlated with postoperative performances (r = -0.70 and r = 0.46, respectively, p < 0.05). Education and communication mode were also closely related to postoperative performances. In the group with poorer performances, preoperative hearing thresholds were significantly worse than those with better performances, and a larger portion of those patients attended special schools and used sign language. CONCLUSION: We found that residual auditory capacity in the better ear is an important factor in predicting outcomes after cochlear implantation in patients with prelingual hearing loss.
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1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Nam(김희남)
Moon, In Seok(문인석) ORCID logo https://orcid.org/0000-0002-3951-5074
Yang, Won Sun(양원선)
Lee, Won Sang(이원상)
Choi, Jae Young(최재영) ORCID logo https://orcid.org/0000-0001-9493-3458
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