Intraoperative Neural Response Telemetry as a Predictor of Performance

Cosetti, Maura K.; Shapiro, William H.; Green, Janet E.; Roman, Benjamin R.; Lalwani, Anil K.; Gunn, Stacey H.; Roland, J. Thomas; Waltzman, Susan B.

doi:10.1097/mao.0b013e3181ec1b8c

Cited by 58 publications

(61 citation statements)

References 22 publications

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“…Specifically, only 27% of children with abnormal or absent ECAPs developed open‐set speech perception skills compared to 81% of children with robust results. Although most studies have not shown such an association, the utility of this tool in patients with suspect (or limited) neural populations, such as those with auditory neuropathy spectrum disorder, has only recently been demonstrated 19, 20. In that study, no child with absent or abnormal ECAPs developed open‐set speech perception abilities 20.…”

Section: Discussionmentioning

confidence: 83%

Cochlear implantation in children with labyrinthine anomalies and cochlear nerve deficiency: Implications for auditory brainstem implantation

et al. 2011

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Children with IP-EVA malformations have an excellent prognosis for developing open-set speech perception and using oral communication modes following CI. On the contrary, children with severe malformations or CND may have elevated charge requirements for attaining sound detection alone. These children's prognosis for obtaining open-set speech understanding, using exclusive oral communication, and participating in mainstream education is more limited. These findings have important implications for considering alternative forms of intervention such as auditory brainstem implantation and/or supplementation with visually based communication strategies.

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Section: Discussionmentioning

confidence: 83%

Cochlear implantation in children with labyrinthine anomalies and cochlear nerve deficiency: Implications for auditory brainstem implantation

et al. 2011

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“…After the removal of duplicates and screening of titles and abstracts, 143 remained. Evaluation of full texts yielded a total of 26 articles and cross‐referencing added one, resulting in a total of 27 relevant articles suitable for critical appraisal describing a relation between speech perception of cochlear implantees and characteristics of the recorded eCAPs.…”

Section: Resultsmentioning

confidence: 99%

Systematic review of compound action potentials as predictors for cochlear implant performance

et al. 2016

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“…However, results from other laboratories have been inconsistent enough that promontory or round window stimulation is not in common use. Similarly, CAPs evoked by electrical stimulation once the implant is in place have not produced consistent correlations with outcomes (36,37). …”

Section: Discussionmentioning

confidence: 98%

Round Window Electrocochleography Just Before Cochlear Implantation

Fitzpatrick

Campbell

Choudhury

et al. 2014

Otology &Amp; Neurotology

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Hypotheses Electrocochleography (ECoG) to acoustic stimuli can differentiate relative degrees of cochlear responsiveness across the population of cochlear implant recipients. The magnitude of the ongoing portion of the ECoG, which includes both hair cell and neural contributions, will correlate with speech outcomes as measured by results on CNC word score tests. Background Postoperative speech outcomes with cochlear implants vary from almost no benefit to near normal comprehension. A factor expected to have a high predictive value is the degree of neural survival. However, speech performance with the implant does not correlate with the number and distribution of surviving ganglion cells when measured post-mortem. We will investigate whether ECoG can provide an estimate of cochlear function that helps predict postoperative speech outcomes. Methods An electrode was placed at the ipsilateral round window of the ear about to be implanted during implant surgery. Tone bursts were delivered through an insert earphone. Subjects included children (N=52, 1–18 years) and postlingually hearing impaired adults (N=32). Word scores at six months were available from 21 adult subjects. Results Significant responses to sound were recorded from almost all subjects (80/84 or 95%). The ECoG magnitudes spanned more than 50 dB in both children and adults. The distributions of ECoG magnitudes and frequencies were similar between children and adults. The correlation between the ECoG magnitude and word score accounted for 47% of the variance. Conclusions ECoGs with high signal to noise ratios can be recorded from almost all implant candidates, including both adult and pediatric populations. In post-lingual adults, the ECoG magnitude is more predictive of implant outcomes than other non-surgical variables such as duration of deafness or degree of residual hearing.

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Intraoperative Neural Response Telemetry as a Predictor of Performance

Cited by 58 publications

References 22 publications

Cochlear implantation in children with labyrinthine anomalies and cochlear nerve deficiency: Implications for auditory brainstem implantation

Cochlear implantation in children with labyrinthine anomalies and cochlear nerve deficiency: Implications for auditory brainstem implantation

Systematic review of compound action potentials as predictors for cochlear implant performance

Round Window Electrocochleography Just Before Cochlear Implantation

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