5 169

Cited 10 times in

Correlation of Cochlear Nerve Size and Auditory Performance After Cochlear Implantation in Postlingually Deaf Patients

 Bo Gyung Kim  ;  Hyo Jin Chung  ;  Jeong Jin Park  ;  Sera Park  ;  Sung Huhn Kim  ;  Jae Young Choi 
 JAMA Otolaryngology - Head & Neck Surgery, Vol.139(6) : 604-609, 2013 
Journal Title
 JAMA Otolaryngology - Head & Neck Surgery 
Issue Date
MPORTANCE: Cochlear implantation (CI) yields outstanding results in postlingual deafness, but outcomes of auditory performance after CI are variable. Thus far, it has been difficult to accurately predict patient prognoses after CI. OBJECTIVE: To assess whether cochlear nerve (CN) size as measured with parasagittal magnetic resonance imaging (MRI) is correlated with auditory performance after CI in postlingually deaf patients. DESIGN: Retrospective study. All MRI results were reviewed by the same observer, who was blinded to the participants' information. SETTING: A university tertiary care center. PARTICIPANTS: All 102 postlingually deaf adults who underwent CI during the period August 2010 through June 2012 were eligible to participate. Thirty-four patients were excluded because MRI was not performed or was not of sufficient quality for assessment. Sixty-eight postlingually deaf adults (mean [range] age, 49 [16-77] years) were enrolled. EXPOSURE: Cochlear implantation. MAIN OUTCOMES AND MEASURES: Size of the CN and auditory performance. RESULTS: The mean (SD) cross-sectional area (CSA) of the CN was 0.922 (0.229) mm2 and tended to decrease with age; however, there was no significant correlation between the size of the CN and age. The cause of deafness also did not affect the size of the CSA. However, CSA was negatively associated with both the duration of deafness (P < .001) and degree of hearing loss (P = .008 for the difference in CSA between ears with no more than 80-dB hearing loss [n = 25] and ears with at least 101-dB hearing loss [n = 65]). Interestingly, CSA was positively correlated with auditory performance after CI (P = .04). CONCLUSIONS AND RELEVANCE: We suggest that measuring the size of the CN with parasagittal MRI can yield information that is helpful in preoperative counseling of patients.
Full Text
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Bo Gyung(김보경)
Kim, Sung Huhn(김성헌)
Park, Se Ra(박세라)
Choi, Jae Young(최재영) ORCID logo https://orcid.org/0000-0001-9493-3458
RIS (EndNote)
XLS (Excel)
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.