Unilateral Auditory Performance Before and After Bilateral Sequential Cochlear Implantation

2013 ◽  
Vol 34 (9) ◽  
pp. 1642-1647 ◽  
Author(s):  
Stanley Pelosi ◽  
George B. Wanna ◽  
Rene H. Gifford ◽  
Allyson Sisler-Dinwiddie ◽  
Gabriela P. Bom Braga ◽  
...  
Keyword(s):  
Cochlear Implantation ◽  
Before And After ◽  
Auditory Performance

scholarly journals Comparisons of Auditory Performance and Speech Intelligibility after Cochlear Implant Reimplantation in Mandarin-Speaking Users

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Chung-Feng Hwang ◽  
Hui-Chen Ko ◽  
Yung-Ting Tsou ◽  
Kai-Chieh Chan ◽  
Hsuan-Yeh Fang ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implantation ◽  
Speech Intelligibility ◽  
Medical Center ◽  
Safe Procedure ◽  
Soft Failure ◽  
Major Complications ◽  
Before And After ◽  
Speech Performance ◽  
Auditory Performance

Objectives. We evaluated the causes, hearing, and speech performance before and after cochlear implant reimplantation in Mandarin-speaking users.Methods. In total, 589 patients who underwent cochlear implantation in our medical center between 1999 and 2014 were reviewed retrospectively. Data related to demographics, etiologies, implant-related information, complications, and hearing and speech performance were collected.Results. In total, 22 (3.74%) cases were found to have major complications. Infection (n=12) and hard failure of the device (n=8) were the most common major complications. Among them, 13 were reimplanted in our hospital. The mean scores of the Categorical Auditory Performance (CAP) and the Speech Intelligibility Rating (SIR) obtained before and after reimplantation were 5.5 versus 5.8 and 3.7 versus 4.3, respectively. The SIR score after reimplantation was significantly better than preoperation.Conclusions. Cochlear implantation is a safe procedure with low rates of postsurgical revisions and device failures. The Mandarin-speaking patients in this study who received reimplantation had restored auditory performance and speech intelligibility after surgery. Device soft failure was rare in our series, calling attention to Mandarin-speaking CI users requiring revision of their implants due to undesirable symptoms or decreasing performance of uncertain cause.

scholarly journals Duration of deafness impacts auditory performance after cochlear implantation: A meta‐analysis

2021 ◽  
Vol 6 (2) ◽  
pp. 291-301
Author(s):  
Nikolai Bernhard ◽  
Ulrich Gauger ◽  
Eugenia Romo Ventura ◽  
Florian C. Uecker ◽  
Heidi Olze ◽  
...  
Keyword(s):  
Cochlear Implantation ◽  
Meta Analysis ◽  
Auditory Performance

Emotional recognition of dynamic facial expressions before and after cochlear implantation in adults with progressive deafness

2017 ◽  
Vol 354 ◽  
pp. 64-72 ◽  
Author(s):  
Emmanuèle Ambert-Dahan ◽  
Anne-Lise Giraud ◽  
Halima Mecheri ◽  
Olivier Sterkers ◽  
Isabelle Mosnier ◽  
...  
Keyword(s):  
Facial Expressions ◽  
Cochlear Implantation ◽  
Emotional Recognition ◽  
Dynamic Facial Expressions ◽  
Before And After

scholarly journals Vestibular Preservation After Cochlear Implantation Using the Round Window Approach

2021 ◽  
Vol 12 ◽  
Author(s):  
Keita Tsukada ◽  
Shin-ichi Usami
Keyword(s):  
Cochlear Implantation ◽  
Round Window ◽  
Surgical Techniques ◽  
Vestibular Function ◽  
Vestibular Evoked Myogenic Potential ◽  
Flexible Electrodes ◽  
Caloric Testing ◽  
Before And After ◽  
Window Approach ◽  
Caloric Response

Background: The development of less traumatic surgical techniques, such as the round window approach (RWA), as well as the use of flexible electrodes and post-operative steroid administration have enabled the preservation of residual hearing after cochlear implantation (CI) surgery. However, consideration must still be given to the complications that can accompany CI. One such potential complication is the impairment of vestibular function with resulting vertigo symptoms. The aim of our current study was to examine the changes in vestibular function after implantation in patients who received CI using less traumatic surgery, particularly the RWA technique.Methods: Sixty-six patients who received CI in our center were examined by caloric testing, cervical vestibular evoked myogenic potential (cVEMP) and ocular VEMP (oVEMP) before or after implantation, or both, to obtain data on semicircular canal, saccular and utricular function, respectively. Less traumatic CI surgery was performed by the use of the RWA and insertion of flexible electrodes such as MED-EL FLEX soft, FLEX 28, and FLEX 24 (Innsbruck, Austria).Results: Caloric response and the asymmetry ratio of cVEMP and oVEMP were examined before and after implantation using less traumatic surgical techniques. Compared with before implantation, 93.9, 82.4, and 92.5% of the patients showed preserved vestibular function after implantation based on caloric testing, cVEMP and oVEMP results, respectively. We also examined the results for vestibular function by a comparison of the 66 patients using the RWA and flexible electrodes, and 17 patients who underwent cochleostomy and insertion of conventional or hard electrodes. We measured responses using caloric testing, cVEMP and oVEMP in patients after CI. There were no differences in the frequencies of abnormal caloric and oVEMP results in the implanted ears between the RWA and cochleostomy. On the other hand, the frequency of abnormal cVEMP responses in the implanted ears in the patients who received implantation by cochleostomy was significantly higher than that in the patients undergoing surgery using the RWA.Conclusion: Patients receiving CI using less traumatic surgical techniques such as RWA and flexible electrodes have reduced risk of damage to vestibular function.

Outcome of Cochlear Implantation in Postmeningitis Profound Sensorineural Hearing Loss at Rajavithi Hospital

2021 ◽  
Vol 104 (2) ◽  
pp. 260-263
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Cochlear Implantation ◽  
Sensorineural Hearing ◽  
Preoperative Imaging ◽  
Profound Hearing Loss ◽  
Language Status ◽  
Auditory Performance ◽  
Electrode Insertion ◽  
One Year

Background: Bacterial meningitis is one of the major factors in the etiology of acquired sensorineural hearing loss in children and adults. Cochlear implantation in these patients is challenging because of inner ear ossification and fibrosis, and this procedure sometimes achieves poorer outcomes in this scenario than with other causes of sensorineural hearing loss. There has been little research into the factors affecting the outcomes of this procedure. Objective: To evaluate the outcomes of cochlear implantation in patients with postmeningitis profound sensorineural hearing loss and to evaluate the factors that affect the results. Materials and Methods: A retrospective review was conducted of thirty patients who were diagnosed with post meningitis profound hearing loss and underwent cochlear implantation at Rajavithi Hospital between 2001 and 2016. Preoperative language status, duration of deafness, preoperative imaging, and degree of electrode insertion were recorded. Categories of auditory performance-II test (CAP-II) was evaluated in all cases, one year postoperative. Results: Thirty postmeningitis deafness patients underwent cochlear implantation. The median age at diagnosis of meningitis and age at implantation were 41 years (range 1 to 75) and 49.50 years (range 3 to 75), respectively. The median duration of deafness was 12 months (range 4 to 300), and the overall mean CAP-II at one year after surgery was 5.47±2.21. The postlinguistic group had a significantly higher CAP-II score than the prelinguistic one (p=0.006). Electrodes were successfully totally inserted in 19 patients (63.3%) and partially inserted in 11 (36.7%). The average CAP-II score in the group with fully-inserted electrodes was significantly higher than in the group with partially-inserted electrodes (p=0.045). There was no correlation between CAP-II score and age at meningitis diagnosis (p=0.069), age at time of surgery (p=0.105), duration of deafness (p=0.506), or preoperative CT (p=0.228) or MRI abnormality (p=0.078). Conclusion: Cochlear implantation in patients with postmeningitis profound hearing loss had high success rates and favorable outcomes. Preoperative language status and degree of electrode insertion were factors that affected auditory performance results. Keywords: Cochlear implantation, Postmeningitis hearing loss, Sensorineural hearing loss, Meningitis, Rajavithi Hospital

Clinical Value of Measurement of Internal Auditory Canal in Pediatric Cochlear Implantation

2019 ◽  
Vol 128 (6_suppl) ◽  
pp. 61S-68S
Author(s):  
Hantai Kim ◽  
Dong Young Kim ◽  
Eun Ju Ha ◽  
Hun Yi Park
Keyword(s):  
Hearing Loss ◽  
Cochlear Implantation ◽  
Negative Impact ◽  
Internal Auditory Canal ◽  
Normal Hearing ◽  
Clinical Value ◽  
Cutoff Values ◽  
Auditory Performance ◽  
Bilateral Sensorineural Hearing Loss ◽  
Hearing Children

Objectives: The aims of this study were to clarify the clinical value of the bony cochlear nerve canal (BCNC) and internal auditory canal (IAC) in children with bilateral sensorineural hearing loss (b-SNHL) and to reveal the correlation between these parameters and outcomes after cochlear implantation (CI). Methods: Ninety-four ears with b-SNHL that received CI and 100 ears with normal hearing were enrolled. Parameters of IAC and pre- and post-CI categories of auditory performance scores were analyzed. Results: The width of the BCNC and the width, height, and length of the IAC were shorter in the b-SNHL group. BCNC and IAC width were associated with b-SNHL. The calculated cutoff values for BCNC and IAC width were 2.055 mm in the BCNC and 4.245 mm in the IAC, setting the sensitivity to 90%. Patients with narrow BCNCs and IACs had significantly worse post-CI auditory performance. Conclusions: BCNC and IAC widths were narrower in children with b-SNHL than in normal-hearing children. Narrow BCNC and IAC width had a negative impact on post-CI outcomes. The proposed cutoff values for BCNC and IAC width were meaningful when predicting the auditory outcome after CI, especially considering both.

Postural control before and after cochlear implantation: Standard cochleostomy versus round window approach

2009 ◽  
Vol 130 (6) ◽  
pp. 696-701 ◽  
Author(s):  
Heinz-Dieter Kluenter ◽  
Ruth Lang-Roth ◽  
Dirk Beutner ◽  
Karl-Bernd Hüttenbrink ◽  
Orlando Guntinas-Lichius
Keyword(s):  
Postural Control ◽  
Cochlear Implantation ◽  
Round Window ◽  
Before And After ◽  
Window Approach
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