A study on relationship between Neural Response Telemetry and behavioural Threshold/Comfort levels in children with cochlear implant

2020 ◽  
Author(s):  
Indrajeet Chauhan ◽  
Himanshu Swami ◽  
Rashmi Natraj
Keyword(s):  
Cochlear Implant ◽  
Neural Response ◽  
Comfort Levels ◽  
Neural Response Telemetry

Use of Neural Response Telemetry Measures to Objectively Set the Comfort Levels in the Nucleus 24 Cochlear Implant

2006 ◽  
Vol 17 (06) ◽  
pp. 413-431 ◽  
Author(s):  
John E. King ◽  
Marek Polak ◽  
Annelle V. Hodges ◽  
Stacy Payne ◽  
Fred F. Telischi
Keyword(s):  
Cochlear Implant ◽  
Predictive Ability ◽  
Growth Function ◽  
Neural Response ◽  
Electrode Impedance ◽  
Comfort Levels ◽  
Neural Response Telemetry ◽  
Alternative Means ◽  
Clinical Measurements ◽  
Nucleus 24

Cochlear implant programming necessitates accurate setting of programming levels, including maximum stimulation levels, of all active electrodes. Frequently, clinical techniques are adequate for setting these levels; however, they are sometimes insufficient (e.g., very young children). In the Nucleus 24, several methods have been suggested for estimation of comfort levels (C levels) from neural response telemetry (NRT); however, many require co-application of clinical measurements. Data was obtained from 21 adult Nucleus 24 recipients to develop reliable predictions of C levels. Multiple regression analysis was performed on NRT threshold, slope of the NRT growth function, age, length of deafness, length of cochlear implant use and electrode impedance to examine predictive ability. Only the NRT threshold and slope of the growth function measures were significant predictors yielding R2 values from 0.391 to 0.769. Results demonstrated that these measures may provide an alternative means of estimating C levels when other clinical measures are unavailable.

Neural Response Telemetry With the Nucleus CI24M Cochlear Implant

1999 ◽  
Vol 109 (11) ◽  
pp. 1755-1759 ◽  
Author(s):  
Jon K. Shallop ◽  
George W. Facer ◽  
Ann Peterson
Keyword(s):  
Cochlear Implant ◽  
Neural Response ◽  
Neural Response Telemetry

scholarly journals Changes in Intraoperative and Postoperative Neural Response Telemetry in Cochlear Implant Users

2017 ◽  
Vol 21 (3) ◽  
pp. 263-271
Author(s):  
Shahenda Moussa ◽  
Mostafa Aly ◽  
Mohamed Abdelrahman
Keyword(s):  
Cochlear Implant ◽  
Neural Response ◽  
Neural Response Telemetry

Intra-operative skull X-ray for misdirection of the cochlear implant array into the vestibular labyrinth

2015 ◽  
Vol 129 (9) ◽  
pp. 923-927 ◽  
Author(s):  
A M Hassan ◽  
R Patel ◽  
M Redleaf
Keyword(s):  
Computed Tomography ◽  
Cochlear Implant ◽  
Case Series ◽  
Electrode Array ◽  
Plain Film ◽  
Neural Response ◽  
Reliable Indicator ◽  
X Ray ◽  
Vestibular Labyrinth ◽  
Neural Response Telemetry

AbstractObjectives:This paper reports five cases of aberrant cochlear implant electrode array insertion into the vestibular labyrinth. A review of the literature was conducted in order to clarify reasonable preventive and detection strategies and endorse the routine use of intra-operative plain skull X-ray.Methods:The study entailed a clinical case series and literature review. The setting was a tertiary academic referral centre. The following data were evaluated: pre-operative temporal bone computed tomography, operative reports, intra-operative imaging, neural response telemetry/imaging and post-operative imaging.Results:There were no consistent pre-operative risk factors found on computed tomography scans and no reliable intra-operative signs of electrode array misdirection. All misdirections in our case series, and those in the literature, were easily detectable on intra-operative plain film X-ray.Conclusion:These reported cases demonstrate implant misdirection without the surgeon's awareness. Aberrant insertion cannot be anticipated, and neural response telemetry/imaging is not a reliable indicator of misdirection. Routine intra-operative anteroposterior plain X-ray of the head is a reliable indicator of misdirection, and is fast and relatively inexpensive.

Relation Between Neural Response Telemetry Thresholds, T- and C-Levels, and Loudness Judgments in 12 Adult Nucleus 24 Cochlear Implant Recipients

2007 ◽  
Vol 28 (4) ◽  
pp. 495-511 ◽  
Author(s):  
Lisa G. Potts ◽  
Margaret W. Skinner ◽  
Brenda D. Gotter ◽  
Michael J. Strube ◽  
Chris A. Brenner
Keyword(s):  
Cochlear Implant ◽  
Neural Response ◽  
Neural Response Telemetry ◽  
Nucleus 24

Neural response telemetry in patients with the double-array cochlear implant

2009 ◽  
Vol 267 (4) ◽  
pp. 515-522 ◽  
Author(s):  
Maria Valéria Goffi-Gomez ◽  
Carolina F. Abdala ◽  
Cristina Gomes Ornelas Peralta ◽  
Robinson Koji Tsuji ◽  
Rubens Vuono de Brito Neto ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Neural Response ◽  
Double Array ◽  
Neural Response Telemetry

Use of Neural Response Telemetry for Pediatric Cochlear Implants: Current Practice

2018 ◽  
Vol 127 (6) ◽  
pp. 367-372 ◽  
Author(s):  
Galit Almosnino ◽  
Samantha Anne ◽  
Seth R. Schwartz
Keyword(s):  
Cochlear Implant ◽  
Hospital Setting ◽  
Neural Response ◽  
Electrode Placement ◽  
Additional Measure ◽  
Neural Response Telemetry ◽  
Academic Center ◽  
Additional Costs ◽  
Initial Activation ◽  
Study Participants

Objectives: Evaluate usage trends of neural response telemetry (NRT) in cochlear implant centers across the nation and assess reported benefits of intraoperative NRT for pediatric cochlear implant recipients. Study Design: Survey. Study Participants: All US cochlear implant centers (n = 110). Methods: A 15-question multiple-choice survey was distributed electronically to all centers. The survey captured demographic information of all centers, practice patterns surrounding the use of NRT, and the extent to which intraoperative NRT is of benefit. Results: Thirty-two invited participants (29%) completed the survey. A majority of participants reported practicing in an academic center (66%), followed by a hospital setting (19%) and private practice (16%). Seventy-two percent of survey participants reported using NRT for pediatric cochlear implant recipients. Sixty-three percent felt it improved the ability to program at initial activation, and 50% of participants felt that NRT improves satisfaction at initial activation. Conclusion: This study suggests that a majority of surgeons use intraoperative NRT for pediatric cochlear implantation as an additional measure to ensure appropriate electrode placement and improve device activation. Larger studies are needed to better establish the relationship between intraoperative NRT and postoperative outcomes and justify the additional costs associated with intraoperative NRT.

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