{"title":"Simultaneous cochlear implantation during resection of a cerebellopontine angle meningioma: case report.","authors":"Samuel Roberts, Richard Ferch, Robert Eisenberg","doi":"10.1080/14670100.2023.2239513","DOIUrl":"10.1080/14670100.2023.2239513","url":null,"abstract":"<p><p>Cerebellopontine angle (CPA) meningiomas commonly involve the internal auditory canal (IAC). We report a case of a 68-year-old lady with idiopathic profound bilateral deafness with a meningioma which was discovered on workup for cochlear implantation. We performed simultaneous excision of her CPA and IAC meningioma with insertion of a cochlear implant (CI). She regained functional hearing with marked improvement in quality of life. Intraoperative electrophysiological testing can be used to confirm preservation of the cochlear nerve enabling simultaneous implantation which is preferable for clinical and logistical reasons. This creates an option for hearing rehabilitation at the time of IAC/CPA tumour surgery in appropriate patients.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"292-294"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71432311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marian Jones, Chris Warren, Marjan Mashal, Paula Greenham, Josie Wyss
{"title":"Speech understanding in noise for cochlear implant recipients using a spatial noise reduction setting in an off the ear sound processor with directional microphones.","authors":"Marian Jones, Chris Warren, Marjan Mashal, Paula Greenham, Josie Wyss","doi":"10.1080/14670100.2023.2233203","DOIUrl":"10.1080/14670100.2023.2233203","url":null,"abstract":"<p><strong>Purpose: </strong>Cochlear implant (CI) recipients struggle to hear in competing background noise. ForwardFocus is a spatial noise reduction setting from Cochlear Ltd. (Sydney) that can simultaneously attenuate noise from multiple sources behind the listener. This study assessed hearing performance with ForwardFocus in an off-the-ear (OTE) sound processor.</p><p><strong>Method: </strong>Twenty-two experienced adult CI recipients participated. Speech reception data was collected in fixed noise acutely in the clinic. After three to five weeks take home experience, subjective impressions were recorded, and evaluations were conducted for speech reception in quiet and roving noise.</p><p><strong>Results: </strong>Group mean speech reception thresholds (SRT) were below 0 dB in two spatially-separated noise test conditions when using ForwardFocus in the OTE sound processor. SRT were -8.5 dB (SD 2.9) in 4-talker babble roving in a rear hemi-field (S0Nrearhemi) and -3.9 dB (SD 3.3) in 12-talker babble presented laterally and behind (S0N3). Results in S0N3 were significantly better with ForwardFocus On (<i>p</i> = 0.0018). Subjective ratings with the OTE were comparable to, or better than, with their walk-in BTE or OTE sound processor.</p><p><strong>Conclusions: </strong>ForwardFocus provides significant benefits for speech recognition in competing background noise in an OTE sound processor. These results support clinicians in counselling CI recipients on potential sound processor options to consider.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"311-324"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9979502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Talita Fortunato-Tavares, Miya Wilson, John Orazem
{"title":"Comprehension of clitic pronouns by children with cochlear implants: the role of sentence stress.","authors":"Talita Fortunato-Tavares, Miya Wilson, John Orazem","doi":"10.1080/14670100.2023.2267894","DOIUrl":"10.1080/14670100.2023.2267894","url":null,"abstract":"<p><strong>Objectives: </strong>This study investigates the role of sentence stress on the comprehension of sentences with clitic pronouns (unstressed morphemes and a typical feature of Romance languages) by children with cochlear implants (CIs).</p><p><strong>Methods: </strong>Thirteen children (seven girls) with CIs and 15 children (seven girls) with NH between eight and 12 years who are monolingual speakers of Brazilian Portuguese participated on a computerized sentence comprehension task that involved manipulation of stress placement of possible antecedent words to clitic pronouns.</p><p><strong>Results: </strong>Children with CIs were significantly less accurate than children with NH in comprehending sentences with clitics, regardless of sentence stress. For children with NH, stress on the correct antecedent significantly increased sentence comprehension accuracy. For children with CI, there was no significant effect of sentence stress on selecting the correct antecedent for clitic pronouns.</p><p><strong>Discussion: </strong>Comprehension of sentences with clitic pronouns is challenging for children with CIs and this challenge holds cross-linguistically. Furthermore, children with CIs do not use prosodic information to support comprehension of sentences with clitics similarly to NH children.</p><p><strong>Conclusion: </strong>Language-specific syntactic, morphosyntactic, and prosodic contrasts affecting sentence comprehension need to be assessed in children with CIs to plan an effective intervention.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"354-364"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50159256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rohma Abrar, Unai Martinez de Estibariz, Elizabeth Whittle, Sarah Hornby, Martin O'Driscoll, Simon Freeman, Emma Stapleton
{"title":"Blinded comparison of computed tomography, ultrasound and needle methods to measure skin flap thickness for cochlear implantation.","authors":"Rohma Abrar, Unai Martinez de Estibariz, Elizabeth Whittle, Sarah Hornby, Martin O'Driscoll, Simon Freeman, Emma Stapleton","doi":"10.1080/14670100.2023.2239515","DOIUrl":"10.1080/14670100.2023.2239515","url":null,"abstract":"<p><strong>Purpose: </strong>Patient suitability for cochlear implant (CI) devices compatible with magnetic resonance imaging and CI processor configuration is dependent on their retro-auricular skin flap thickness. This is typically measured intra-operatively using a needle and therefore patients are not guaranteed their implant of choice prior to surgery. We aimed to identify an accurate method to measure skin flap thickness pre-operatively to streamline CI selection and simplify the consent process.</p><p><strong>Methods: </strong>Blinded prospective skin flap thickness measurements for patients undergoing CI surgery were recorded using pre-operative computed tomography (CT) and ultrasound (US), and intraoperative needle measurement.</p><p><strong>Results: </strong>Fifty-six adult patients (36 females, 20 males; mean age 59 years) were included. The mean flap thickness was measured highest by CT (6.9 mm, 95% CI 6.5-7.3 mm), followed by US (6.3 mm, 95% CI 5.9-6.7 mm) and lastly needle (5.5 mm, 95% CI 5.1-5.9 mm) (<i>p</i> < 0.0001). A strong positive correlation (<i>p</i> < 0.001) was noted between all three modalities: CT vs needle (<i>r</i> = 0.869), US vs needle (<i>r</i> = 0.865), and CT vs US (<i>r</i> = 0.849).</p><p><strong>Conclusion: </strong>Accurate, non-invasive measurement of skin flap thickness prior to CI surgery can be achieved using CT or US. We recommend the routine use of US in the outpatient clinic to minimise unnecessary radiation exposure.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"295-300"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10062015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alejandro Garcia, Afash Haleem, Divya A Chari, Charlotte Morse-Fortier, Julie G Arenberg, Daniel J Lee
{"title":"Influence of listening environment on usage patterns in cochlear implant patients with single-sided deafness.","authors":"Alejandro Garcia, Afash Haleem, Divya A Chari, Charlotte Morse-Fortier, Julie G Arenberg, Daniel J Lee","doi":"10.1080/14670100.2023.2176990","DOIUrl":"10.1080/14670100.2023.2176990","url":null,"abstract":"<p><strong>Objective: </strong>To compare cochlear implant (CI) data logging of patients with single-sided deafness (SSD) and bilateral sensorineural hearing loss (biSNHL) in various acoustic environments and study the implications of data logging on auditory performance.</p><p><strong>Study design: </strong>Retrospective case control study.</p><p><strong>Methods: </strong>Adult CI patients with SSD or biSNHL from 2010 to 2021 with usage data collected at 3-, 6-, and 12-months following device activation were identified. The CI listening environment was defined as speech in noise, speech in quiet, quiet, music or noise. Auditory performance was measured using the CNC word, AzBio sentence tests and the Tinnitus Handicap Index (THI).</p><p><strong>Results: </strong>60 adults with SSD or biSNHL were included. CI patients with biSNHL wore their devices more than those with SSD at 3-months post-activation (11.18 versus 8.97 hours/day, <i>p</i> = 0.04), though there were no significant differences at 6-12 months. Device usage was highest in the speech in quiet environment. In SSD CI users, there was a positive correlation (<i>p</i> = 0.03) between device use and CNC scores at 12-months and an improvement in THI scores at 12-months (<i>p</i> = 0.0004).</p><p><strong>Conclusions: </strong>CI users with SSD and biSNHL have comparable duration of device usage at longer follow-up periods with greatest device usage recorded in speech in quiet environments.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"335-341"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9249354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eunjung Na, Karine Toupin-April, Janet Olds, Dorie Noll, Elizabeth M Fitzpatrick
{"title":"Cochlear implant decision-making for children with residual hearing: Perspectives of parents.","authors":"Eunjung Na, Karine Toupin-April, Janet Olds, Dorie Noll, Elizabeth M Fitzpatrick","doi":"10.1080/14670100.2023.2233191","DOIUrl":"10.1080/14670100.2023.2233191","url":null,"abstract":"<p><strong>Purpose: </strong>Cochlear implant (CI) decision-making is particularly challenging for families of children who have residual hearing. Parents of these children may be uncertain about whether the potential benefits of CIs outweigh the risks. This study aimed to understand parents' decisional needs during the decision-making process for children with residual hearing.</p><p><strong>Method: </strong>Semi-structured interviews were conducted with parents of 11 children who had received CIs. Open-ended questions were asked to encourage parents to share their experiences about the decision-making process, their values/preferences, and their needs. The interviews were transcribed verbatim and analyzed using thematic analysis.</p><p><strong>Results: </strong>Data were organized according to three key themes: (1) Parents' decisional conflict, (2) values and preferences, (3) decision support and parents' needs. We found that overall parents were satisfied with their decision-making process and the decision support from practitioners. However, parents stressed the importance of receiving more personalized information that considers their specific concerns, values and preferences related to family's circumstances.</p><p><strong>Conclusions: </strong>Our research provides additional evidence to guide the CI decision-making process for children with residual hearing. Additional collaborative research with audiology and decision-making experts specifically on facilitating shared decision-making is needed to provide better decision coaching for these families.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"301-310"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9767543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kristofer G Andren, Kevin Duffin, Matthew T Ryan, Charles A Riley, Anthony M Tolisano
{"title":"Postoperative optimization of cochlear implantation for single sided deafness and asymmetric hearing loss: a systematic review.","authors":"Kristofer G Andren, Kevin Duffin, Matthew T Ryan, Charles A Riley, Anthony M Tolisano","doi":"10.1080/14670100.2023.2239512","DOIUrl":"10.1080/14670100.2023.2239512","url":null,"abstract":"<p><strong>Objective: </strong>Identify and evaluate the effectiveness of methods for improving postoperative cochlear implant (CI) hearing performance in subjects with single-sided deafness (SSD) and asymmetric hearing loss (AHL).</p><p><strong>Data sources: </strong>Embase, PubMed, Scopus.</p><p><strong>Review methods: </strong>Systematic review and narrative synthesis. English language studies of adult CI recipients with SSD and AHL reporting a postoperative intervention and comparative audiometric data pertaining to speech in noise, speech in quiet and sound localization were included.</p><p><strong>Results: </strong>32 studies met criteria for full text review and 6 (n = 81) met final inclusion criteria. Interventions were categorized as: formal auditory training, programming techniques, or hardware optimization. Formal auditory training (n = 10) found no objective improvement in hearing outcomes. Experimental CI maps did not improve audiologic outcomes (n = 9). Programed CI signal delays to improve synchronization demonstrated improved sound localization (n = 12). Hardware optimization, including multidirectional (n = 29) and remote (n = 11) microphones, improved sound localization and speech in noise, respectively.</p><p><strong>Conclusion: </strong>Few studies meeting inclusion criteria and small sample sizes highlight the need for further study. Formal auditory training did not appear to improve hearing outcomes. Programming techniques, such as CI signal delay, and hardware optimization, such as multidirectional and remote microphones, show promise to improve outcomes for SSD and AHL CI users.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":" ","pages":"342-353"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9873278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Susanne Schwitzer, Moritz Gröschel, Horst Hessel, Arne Ernst, Dietmar Basta
{"title":"Short-term overstimulation affects peripheral but not central excitability in an animal model of cochlear implantation.","authors":"Susanne Schwitzer, Moritz Gröschel, Horst Hessel, Arne Ernst, Dietmar Basta","doi":"10.1080/14670100.2023.2202940","DOIUrl":"https://doi.org/10.1080/14670100.2023.2202940","url":null,"abstract":"<p><p><b>Objective:</b> Upper current limits (C-levels) are sometimes extremely increased over time since this procedure can enhance speech perception. It should be clarified if a larger amount of electrical stimulation is tolerated by the remaining peripheral and central auditory pathway.<b>Materials and Methods:</b> An animal electrode array was inserted in mechanically deafened guinea pigs. C-levels were adjusted to a mean of approximately 10 CL ('LOS' group), 40 CL ('MOS' group) or 60 CL ('HOS' group) above the electrode specific electrically evoked compound action potential (eCAP) threshold. The stimulation was performed via a sound processor in standardized auditory environment. Implanted and not stimulated animals served as controls.<b>Results:</b> A significant eCAP threshold shift was observed in the 'HOS'-group aftereight hours of stimulation at basal electrodes. Electrically evoked auditory brainstem thresholds were stable over time in all stimulation groups. The ratio between eCAP- and eABR threshold shifts was significantly enhanced in the 'HOS'- group.<b>Conclusion:</b> Even short-time overstimulation reduces the excitability of peripheral but not central auditory structures. The changed relationship between the excitability of spiral ganglion neurons and inferior colliculus neurons seems to indicate an overstimulation. The results are of utmost importance for a safe CI-processor fitting especially in children or non-compliant patients.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":"24 5","pages":"250-259"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10280260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Long-term speech perception performance in prelingually deafened adult cochlear implant recipients.","authors":"Haruo Yoshida, Yukihiko Kanda, Chisei Satoh, Yoshihiko Kumai, Haruo Takahashi","doi":"10.1080/14670100.2023.2228031","DOIUrl":"https://doi.org/10.1080/14670100.2023.2228031","url":null,"abstract":"<p><p>To investigate the postoperative long-term outcomes after an average of 9.2 years following cochlear implantation (CI) in prelingually deafened adults, along with preimplantation factors predicting postoperative outcomes.</p><p><p>Twenty-six prelingually deafened adults who underwent CI at >18 years were compared with those who had undergone CI in childhood (<9 years) and were >10 years old. Outcome measures includedhearing thresholds, preoperative and postoperative aided hearing level (HL), speech discrimination score (SDS), and Categories of Auditory Performance (CAP) scores. Correlation analyses were performed on the following: SDS results, aided HL, school attendant status, implant manufacturers, and speech processor models.</p><p><p>Improvement was achieved in the aided HL and SDS results, although these results were not better than those of the child group. CAP score was also statistically significantly improved after CI. Statistically significant correlation between the preoperative SDS and postoperative HL with CI results was observed. In other words, the better the preoperative SDS results, the better the postoperative SDS results.</p><p><p>Prelingually deafened adults achieved considerable improvement through CI. It is important to understand that patients achieving better hearing with a well-fitted hearing aid and good SDS performance before surgery may be good candidates for CI.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":"24 5","pages":"243-249"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9866601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Miriam R Smetak, Shanik J Fernando, Matthew R O'Malley, Marc L Bennett, David S Haynes, Christopher T Wootten, Frank W Virgin, Robert T Dwyer, Benoit M Dawant, Jack H Noble, Robert F Labadie
{"title":"Electrode array positioning after cochlear reimplantation from single manufacturer.","authors":"Miriam R Smetak, Shanik J Fernando, Matthew R O'Malley, Marc L Bennett, David S Haynes, Christopher T Wootten, Frank W Virgin, Robert T Dwyer, Benoit M Dawant, Jack H Noble, Robert F Labadie","doi":"10.1080/14670100.2023.2179756","DOIUrl":"10.1080/14670100.2023.2179756","url":null,"abstract":"<p><strong>Objective: </strong>To investigate whether revision surgery with the same device results in a change in three key indicators of electrode positioning: scalar location, mean modiolar distance (<math><mrow><mover><mi>M</mi><mo>¯</mo></mover></mrow></math>), and angular insertion depth (AID).</p><p><strong>Methods: </strong>Retrospective analysis of a cochlear implant database at a university-based tertiary medical center. Intra-operative CT scans were obtained after initial and revision implantation. Electrode array (EA) position was calculated using auto-segmentation techniques. Initial and revision scalar location, <math><mrow><mover><mi>M</mi><mo>¯</mo></mover></mrow></math>, and AID were compared.</p><p><strong>Results: </strong>Mean change in <math><mrow><mover><mi>M</mi><mo>¯</mo></mover></mrow></math> for all ears was -0.07 mm (SD 0.24 mm; <i>P</i> = 0.16). The mean change in AID for all ears was -5° (SD 67°; <i>P</i> = 0.72). Three initial implantations with pre-curved EAs resulted in a translocation from Scala Tympani (ST) to Scala Vestibuli (SV). Two remained translocated after revision, while one was corrected when revised with a straight EA. An additional five translocations occurred after revision.</p><p><strong>Conclusions: </strong>In this study examining revision cochlear implantation from a single manufacturer, we demonstrated no significant change in key indicators of EA positioning, even when revising with a different style of electrode. However, the revision EA is not necessarily confined by the initial trajectory and there may be an increased risk of translocation.</p>","PeriodicalId":53553,"journal":{"name":"COCHLEAR IMPLANTS INTERNATIONAL","volume":"24 5","pages":"273-281"},"PeriodicalIF":1.4,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10372339/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9936022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}