Hearing preservation cochlear implantation in children: The HEARRING Group consensus and practice guide

Rajan, Gunesh; Távora-Vieira, Dayse; Baumgartner, Wolf‐Dieter; Godey, Benoît; Müller, J. M.; O’Driscoll, Martin; Skarżyński, Henryk; Usami, Shin‐ichi; Adunka, Oliver F.; Agrawal, Sumit; Bruce, Iain; Bodt, Marc De; Caversaccio, Marco; Pilsbury, Harold; Gavilán, Javiér; Hagen, Rudolf; Hagr, Abdulrahman; Kameswaran, Mohan; Karltorp, Eva; Kompis, Martin; Кузовков, В. Е.; Lassaletta, Luis; Li, Yongxin; Lorens, Artur; Manoj, Manikoth; Martin, Jane; Mertens, Griet; Mlynski, Robert; Parnes, Lorne S.; Pulibalathingal, S.; Radeloff, Andreas; Raine, Christopher; Rajeswaran, Ranjith; Schmutzhard, Joachim; Sprinzl, Georg Mathias; Staecker, Hinrich; Stephan, K.; Сугарова, С. Б.; Zernotti, Mario; Zorowka, Patrick; Heyning, Paul Van de

doi:10.1080/14670100.2017.1379933

Cited by 49 publications

(34 citation statements)

References 20 publications

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“…Electrical stimulation of the auditory nerve via CIs probably reestablishes crucial central functions for fast auditory processing by initiating activity in high-SR fibers. This must be concluded from the success in achieving nearly normal speech and language development in congenitally deaf children (Rajan et al, 2018;Albalawi et al, 2019). This partial implementation of fast auditory processing through CIs may also be reflected in the observed shortened response-onset latencies observed after cochlear electrode implantation in cats (Tillein et al, 2016).…”

Section: Impaired Attention/stress Control As a Correlate Of Tinnitusmentioning

confidence: 99%

The Neural Bases of Tinnitus: Lessons from Deafness and Cochlear Implants

et al. 2020

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Subjective tinnitus is the conscious perception of sound in the absence of any acoustic source. The literature suggests various tinnitus mechanisms, most of which invoke changes in spontaneous firing rates of central auditory neurons resulting from modification of neural gain. Here, we present an alternative model based on evidence that tinnitus is: (1) rare in people who are congenitally deaf, (2) common in people with acquired deafness, and (3) potentially suppressed by active cochlear implants used for hearing restoration. We propose that tinnitus can only develop after fast auditory fiber activity has stimulated the synapse formation between fast-spiking parvalbumin positive (PV 1 ) interneurons and projecting neurons in the ascending auditory path and coactivated frontostriatal networks after hearing onset. Thereafter, fast auditory fiber activity promotes feedforward and feedback inhibition mediated by PV 1 interneuron activity in auditory-specific circuits. This inhibitory network enables enhanced stimulus resolution, attention-driven contrast improvement, and augmentation of auditory responses in central auditory pathways (neural gain) after damage of slow auditory fibers. When fast auditory fiber activity is lost, tonic PV 1 interneuron activity is diminished, resulting in the prolonged response latencies, sudden hyperexcitability, enhanced cortical synchrony, elevated spontaneous c oscillations, and impaired attention/stress-control that have been described in previous tinnitus models. Moreover, because fast processing is gained through sensory experience, tinnitus would not exist in congenital deafness. Electrical cochlear stimulation may have the potential to reestablish tonic inhibitory networks and thus suppress tinnitus. The proposed framework unites many ideas of tinnitus pathophysiology and may catalyze cooperative efforts to develop tinnitus therapies.

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Section: Impaired Attention/stress Control As a Correlate Of Tinnitusmentioning

confidence: 99%

The Neural Bases of Tinnitus: Lessons from Deafness and Cochlear Implants

et al. 2020

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“…Despite growing experience and documentation, there is still no consensus about optimal electrode trajectory pathways and array designs for structure/hearing preservation. There is a strong recommendation that CI surgery in children should be performed with the principle of structure/hearing preservation, regardless of the degree of preoperative hearing (Rajan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Cochlear implantation and residual hearing preservation long-term follow-up of the first consecutively operated patients using the round window approach in Uppsala, Sweden

Schart-Morén

Erixon

et al. 2020

Cochlear Implants International

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Objective: We conducted a long-term follow-up study to investigate the time course of residual hearing in our first 21 consecutively operated cochlear implant (CI) patients using the round window (RW) approach . The study may provide additional information about the influence of a flexible lateral wall electrode array on cochlear function. Methods: Data were available for long-term follow-up (>5 years) in 15 patients. Pure tone audiometry (PTA) was assessed at 0.125-8 kHz preoperatively, and at one, three and >5 years postoperatively. Insertion angle, number of electrodes inside the cochlea, user-time of the processor and stimulation strategy were documented. Results: Twelve out of 15 patients had residual hearing after a follow-up period of five years (mean 86 months, range: 61-103 months). Four out of 15 patients had >75% complete hearing preservation (HP), 8 out of 15 had 25-75% partial HP and 3 out of 15 patients had complete loss of hearing. There was a high correlation between insertion angle and HP. Conclusion: Long-term HP was possible in 12 out of 15 cases. Even patients with complete hearing loss at long-term follow-up showed high performance in speech understanding and were full-time users.

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“…The criteria for exclusion from the study were as follows: comorbidity: hypertension, diabetes or cancer, and contraindications for steroid therapy (taking drugs that may weaken or intensify the effects of steroids: anticoagulants, antidepressants, immunosuppressants), and hypersensitivity to the drug or its components. The inclusion criteria are in line with the international HEARRING Group consensus on hearing protection for cochlear implant users [20].…”

Section: Ethical Approval and Patients Studiedmentioning

confidence: 99%

The Clinical Effects of Steroids Therapy in the Preserving Residual Hearing after Cochlear Implantation with the OTICON Neuro Zti EVO

Skarżyńska

Kołodziejak

Gos

et al. 2021

JCM

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Background: A prospective clinical study was conducted to investigate whether two different pharmacotherapy strategies of steroid administration impact hearing preservation in adult patients who underwent cochlear implantation with the Oticon Medical Neuro cochlear implant system. Methods: Twenty nine adult participants were included. Pure tone audiometry was performed before implantation, during processor activation and 12 months after activation. There were three treatment groups: (1) intravenous steroid therapy (standard steroid therapy with dexamethasone administrated intravenously at the dose 0.1 mg/kg body mass twice a day); (2) combined oral and intravenous steroid therapy (extended steroid therapy with dexamethasone administrated intravenously at the dose 0.1 mg/kg b.m. twice a day and prednisone (orally) at the dose 1 mg/kg body mass/24 h), and (3) no steroid therapy (a control group). Patients’ hearing thresholds before implantation were on average 103 dB HL, 89 dB HL, and 93 dB HL, respectively. Results: Deterioration of hearing thresholds was observed in all three patients’ groups. Twelve months after surgery the patients with and without steroid therapy had similar hearing thresholds. Conclusions: The steroid regimen used in this study did not play a significant role in patients with non-functional residual hearing, who underwent cochlear implantation with the Oticon Medical Neuro cochlear implant system.

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Hearing preservation cochlear implantation in children: The HEARRING Group consensus and practice guide

Cited by 49 publications

References 20 publications

The Neural Bases of Tinnitus: Lessons from Deafness and Cochlear Implants

The Neural Bases of Tinnitus: Lessons from Deafness and Cochlear Implants

Cochlear implantation and residual hearing preservation long-term follow-up of the first consecutively operated patients using the round window approach in Uppsala, Sweden

The Clinical Effects of Steroids Therapy in the Preserving Residual Hearing after Cochlear Implantation with the OTICON Neuro Zti EVO

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