Effect of early activation of cochlear implant on electrode impedance in pediatric population

Alhabib, Salman F.; Abdelsamad, Yassin; Yousef, Medhat; Alzhrani, Farid; Hagr, Abdulrahman

doi:10.1016/j.ijporl.2020.110543

Cited by 15 publications

(20 citation statements)

References 22 publications

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“…As reported in a previous study using the Nucleus implant system, a signi cant reduction in impedance for all electrode contacts from slim modiolar electrodes was also observed from the early switch-on group in the present study 18,24 . In contrast, other studies using the MED-EL or the Advanced Bionics implant system showed no signi cant decrease in impedance at early switch-on 19,20,25 20,22 . To the best of our knowledge, this is the rst study to report the time course of the postoperative impedance levels for a slim modiolar electrode array.…”

Section: Discussionmentioning

confidence: 67%

Effect of Initial Switch-On Within 24 Hours of Cochlear Implantation Using Slim Modiolar Electrodes: Potential Clinical Implications

Sunwoo

Jeon

Choi

2021

Preprint

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Reducing electrode impedance is an important factor in improving the functional benefits of cochlear implants (CIs). The immediate effect of early switch-on within 24 hours of surgery on impedance among CI recipients with various types of electrodes has been reported previously; however, the immediate change and the evolution of electrode impedances of slim modiolar electrodes after early switch-on within 24 hours of implantation has not. Therefore, the focus of this study was to compare the effect of early switch-on and conventional switch-on 3–4 weeks post-operation on impedance. Compared with impedance measured intraoperatively, our results demonstrate a significant drop in impedance for early switch-on, which sharply contrasted with elevated impedance values for conventional switch-on 3–4 weeks after implantation. Notably, a comparatively lower impedance than the conventional switch-on protocol was observed for up to 2 months post-operation. Most importantly, a much earlier stabilization of impedance can be achieved with the early switch-on protocol coupled with the slim modiolar electrode array compared to the conventional switch-on protocol, offering the advantage of reducing the number of required mapping sessions in the early stages of rehabilitation.

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Section: Discussionmentioning

confidence: 67%

Effect of Initial Switch-On Within 24 Hours of Cochlear Implantation Using Slim Modiolar Electrodes: Potential Clinical Implications

Sunwoo

Jeon

Choi

2021

Preprint

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“…10,19 Threshold, MCL, and DR were further investigated, with all studies finding an increment over the course of the first month following implantation. 5,8,15,18 Although this would be expected with rising impedances, there was no significant relationship between threshold or MCL levels and impedance measured at 1 day or 1 month postoperatively. 8…”

Section: Audiometric Outcomesmentioning

confidence: 80%

“…Most studies do not provide granular information on postoperative clinical concerns, electing to use terms such as “no surgical complications.” 3–6,10,12,16,20,21 Other studies did not include any surgical outcome information, as their analysis focused on electrophysiological changes over the postoperative period. 9,13–15,17,18 A handful of studies have published clinical information that sheds some insight on this issue. Günther et al reported 23 CIs in 21 patients, with a median activation of 2 days postoperatively.…”

Section: Feasibility and Safetymentioning

confidence: 99%

“…5 Over the years, several other groups have published their experiences with early activation, ranging from 13 days to the day of surgery in the recovery room. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] An increasing number of publications from a select group of CI centers suggest increased acceptance of these protocols, although no data exist as to how common this practice is in reality.…”

Section: Historymentioning

confidence: 99%

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Very early activation of cochlear implants: A review of the literature

Coelho

Shiao

2022

Journal of the Chinese Medical Association

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Cochlear implantation (CI) has become the standard treatment for patients with severe-to-profound hearing loss. To date, an estimated 750,000 individuals spanning the entire lifecycle have benefited from this life-changing technology. Traditionally, the device is not “activated” for 3 to 4 weeks after surgery. However, an increasing number of centers have recently begun to question the conventional wisdom that several weeks are necessary and are activating their patients’ device sooner after CI. This review aimed to provide a comprehensive insight to better understand the feasibility, outcomes, benefits, and limitations of very early cochlear implant activation. Data sources from published medical literature were reviewed. A detailed examination and summary were provided. History and safety were also emphasized. It was observed that approximately 20 studies have reported their experience with very early cochlear implant activation, ranging from the day of surgery to 1 week. Outcome measures are disparate, although there is general agreement that early activation is not only feasible but also provides some real-life benefits to patients and caregivers. The surgical, electrophysiological, audiological, and other outcomes were also reviewed. Very early activation is safe and beneficial in patients with cochlear implants. Many CI centers believe that such a process can lead to improvements in both patient-centered and fiscally responsible care. Although not ideal for all patients, cochlear implant programs may consider this option for their patients.

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“…The activation of the audio processor was performed three days after the CI surgery. Early activation of CI audioprocessor showed to be safe approach and more economic compared to classical activation that performed one month after the surgery [11]. Impedance field telemetry (IFT) was normal, and the ECAP was present only at electrodes 3 and 7.…”

Section: Audiological and Speech Assessment Outcomesmentioning

confidence: 95%

Audiological and Speech Performance After Cochlear Implantation in Cochlear Aplasia Deformity

Alhabib¹

2021

Cureus

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Inner ear malformation is a congenital anomaly associated with prelingual sensory neural hearing loss in the pediatric population. This is a case report of bilateral radiologically diagnosed cochlear aplasia in a child who underwent unilateral left cochlear implantation with audiological results at one-year follow-up after surgery. Sixteen months after the cochlear implantation surgery, the child could produce 200 words and say a sentence with two words. In certain cases of inner ear malformation, the subgrouping of cystic cavity can be difficult and should not delay the trial of cochlear implant provided an acceptable anatomical appearance of the inner ear with cochleovestibular nerve existence and a proper electrode used for implantation.

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Effect of early activation of cochlear implant on electrode impedance in pediatric population

Cited by 15 publications

References 22 publications

Effect of Initial Switch-On Within 24 Hours of Cochlear Implantation Using Slim Modiolar Electrodes: Potential Clinical Implications

Effect of Initial Switch-On Within 24 Hours of Cochlear Implantation Using Slim Modiolar Electrodes: Potential Clinical Implications

Very early activation of cochlear implants: A review of the literature

Audiological and Speech Performance After Cochlear Implantation in Cochlear Aplasia Deformity

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