Catchment Profile of Large Cochlear Implant Centers in the United States

How to Teach an "Old Dog" New Tricks: Improving Clinical Efficiency in a Well-Established Cochlear Implant Program

OBJECTIVE

To evaluate the implementation of a new streamlined service delivery model for cochlear implant (CI) patients at a mature academic CI program.

SETTING

Tertiary referral center.

PATIENTS

CI candidates and CI users.

INTERVENTIONS

Implementation of a new CI service delivery model.

MAIN OUTCOME MEASURES

CI surgical numbers, conversion rate from CI evaluation to surgery, documentation time, number of visits for new versus established CI users, ratio of CI clinical full-time equivalency to CI surgical numbers, time from CI referral to CI evaluation, patient travel burden.

RESULTS

De-identified data from the electronic health record (EHR) were used to develop an efficiency improvement plan. With the old clinical model, audiologists' schedules were at capacity, wait for CI evaluation appointments was prolonged, and CI surgical numbers were declining. The new model implemented an interactive electronic medical record, a de-escalated postoperative programming schedule, inclusion of telehealth pre-CI surgery, and an evidence-based approach to CI programming. After a 4-year time period (2019-2022) of implementing clinical improvement strategies, the postoperative CI programming schedule in the first year after activation was reduced from 10 visits (unilateral CI user) and 16 visits (bilateral CI user) to 4 visits total. This saved the patient up to 16 hours of time at the clinic, reduced travel burden, and opened 19 weeks of appointment slots for new patients. Increased utilization of the EHR and telehealth increased the conversion rate from CI evaluation to CI surgery by 33% and decreased the no-show rate by 5%. Annual CI surgical numbers subsequently increased by 45% with the new model, which increased our program's CI utilization rate and reduced our role as a barrier to CI care.

CONCLUSION

If CI programs wish to be instrumental in improving CI utilization rates, clinical care models need to be adapted now in preparation for the projected rise in the number of potential CI candidates. This streamlined clinical efficiency model serves as an example of patient-centered CI care that can be recreated at other institutions. Outcomes from our 4-year strategic initiative will add to the scarcity of literature in this area.

Notable Programs in Neurotology Series: The University of Miami Ear Institute

The University of Miami Ear Institute (UMEI) was conceived and founded by Dr. W. Jarrard (Jerry) Goodwin in 1990, then Chairman of the University of Miami Department of Otolaryngology-Head and Neck Surgery. Dr. Goodwin's goal was to establish a state-of-the-art institution featuring world-renowned experts in otology, audiology, cochlear implants, balance disorders, skull base surgery, and research. With the support of many within and outside the University, he succeeded in this endeavor and appointed Thomas J. Balkany the first director of the Ear Institute. Under Dr. Balkany's leadership, the institute continued to evolve alongside the growing University of Miami Department of Otolaryngology, pioneering developments in pediatric cochlear implant surgery and postoperative care and basic science research. Dr. Balkany transitioned from UMEI Director in 2010, succeeded by Dr. Fred F. Telischi, and subsequently Dr. Simon I. Angeli who is the current Ear Institute Director. The Ear Institute experienced exponential growth in clinical services, research, education, and advocacy throughout the 2nd decade of the 21st century. Renamed the UHealth Ear Institute, its organizational structure evolved to meet new challenges. In its 34-year history, the UHealth Ear Institute has transformed from an idea into a nationally and internationally recognized center of excellence. It remains dedicated to advocating for universal hearing health, ensuring access to hearing health services, providing exceptional patient care, advancing innovative research, and training future specialists.

Barriers to Cochlear Implant Uptake in Adults: A Scoping Review

INTRODUCTION

Cochlear implants (CIs) provide access to sound and help mitigate the negative effects of hearing loss. As a field, we are successfully implanting more adults with greater amounts of residual hearing than ever before. Despite this, utilization remains low, which is thought to arise from barriers that are both intrinsic and extrinsic. A considerable body of literature has been published in the last 5 years on barriers to adult CI uptake, and understanding these barriers is critical to improving access and utilization. This scoping review aims to summarize the existing literature and provide a guide to understanding barriers to adult CI uptake.

METHODS

Inclusion criteria were limited to peer-reviewed articles involving adults, written in English, and accessible with a university library subscription. A cutoff of 20 years was used to limit the search. Barriers uncovered in this review were categorized into an ecological framework.

RESULTS

The initial search revealed 2,315 items after duplicates were removed. One hundred thirty-one articles were reviewed under full-text, and 68 articles met the inclusion criteria.

DISCUSSION

Race, ethnicity, and reimbursement are policy and structural barriers. Public awareness and education are societal barriers. Referral and geographical challenges are forms of organizational barriers. Living context and professional support are interpersonal barriers. At the individual level, sound quality, uncertainty of outcome, surgery, loss of residual hearing, and irreversibility are all barriers to CI uptake. By organizing barriers into an ecological framework, targeted interventions can be used to overcome such barriers.

Association between the home-to-healthcare center distance and hearing aid abandonment among older adults

Background

Access to audiology services for older adults residing in sparsely populated regions is often limited compared to those in central urban areas. The geographic accessibility to follow-up care, particularly the influence of distance, may contribute to an increased risk of hearing aid abandonment.

Objective

To assess the association between the home-to-healthcare-calibration-center distance and hearing aid abandonment among older adults fitted in the Chilean public health system.

Methods

455 patients who received hearing aids from two public hospitals in two regions were considered. Univariate and multivariate Poisson regression models with robust variance estimation were used to analyze the association between the geographical distance and hearing aid abandonment, accounting for confounding effects.

Results

Approximately 18% of the sample abandoned the hearing aid, and around 50% reported using the hearing aid every day. A twofold increase in distance between home and the hearing center yielded a 35% (RR = 1.35; 95% CI: 1.04-1.74; p = 0.022) increased risk of hearing aid abandonment. Also, those in the second quintile had a 2.17 times the risk of abandoning the hearing aid compared to the first quintile (up to 2.3 km). Under the assumption that patients reside within the first quintile of distance, a potential reduction of 45% in the incidence of hearing aid abandonment would be observed. The observed risk remained consistent across different statistical models to assess sensitivity.

Conclusion

A higher distance between the residence and the healthcare center increases hearing aid abandonment risk. The association may be explained by barriers in purchasing supplies required to maintain the device (batteries, cleaning elements, potential repairs, or maintenance).

Cochlear Implant Remote Assist: Clinical and Real-World Evaluation

OBJECTIVES

To develop and evaluate Cochlear™ Remote Assist (RA), a smartphone-based cochlear implant (CI) teleaudiology solution. The development phase aimed to identify the minimum features needed to remotely address most issues typically experienced by CI recipients. The clinical evaluation phase assessed ease of use, call clarity, system latency, and CI recipient feedback.

DESIGN

The development phase involved mixed methods research with experienced CI clinicians. The clinical evaluation phase involved a prospective single-site clinical study and real-world use across 16 clinics.

STUDY SAMPLE

CI clinicians (N = 23), CI recipients in a clinical study (N = 15 adults) and real-world data (N = 57 CI recipients).

RESULTS

The minimum feature set required for remote programming in RA, combined with sending replacements by post, should enable the clinician to address 80% of the issues typically seen in CI follow-up sessions. Most recipients completed the RA primary tasks without prior training and gave positive ratings for usefulness, ease of use, effectiveness, reliability, and satisfaction on the Telehealth Usability Questionnaire. System latency was reported to be acceptable.

CONCLUSION

RA is designed to help clinicians address a significant proportion of issues typically encountered by CI recipients. Clinical study and real-world evaluation confirm RA's ease of use, call quality, and responsiveness.

Coordinated Same- or Next-Day Radiosurgery and Cochlear Implantation for Vestibular Schwannoma

OBJECTIVE

To describe the experience and results from coordinated and closely scheduled radiosurgery and cochlear implantation (CI) in a vestibular schwannoma (VS) cohort.

PATIENTS

Patients with VS who underwent radiosurgery followed by CI on the same or next day.

INTERVENTIONS

Interventions included sequential radiosurgery and CI.

MAIN OUTCOME MEASURES

Tumor control defined by tumor growth on posttreatment surveillance and audiometric outcomes including consonant-nucleus-consonant words and AzBio sentences in quiet.

RESULTS

In total, six patients were identified that met the inclusion criteria, with an age range of 38 to 69 years and tumor sizes ranging from 2.0 to 16.3 mm. All patients successfully underwent radiosurgery and CI on the same or immediately successive day. Postoperatively, all patients obtained open-set speech recognition. Consonant-nucleus-consonant word scores ranged from 40 to 88% correct, and AzBio scores ranged from 44 to 94% correct. During posttreatment magnetic resonance imaging surveillance, which ranged from 12 to 68 months, all tumors were noted to be adequately visualized, and no tumor progression was noted.

CONCLUSION

Coordinated radiosurgery and CI can be safely performed in patients with VS on the same or next day, serving to decrease burden on patients and increase access to this vital rehabilitative strategy.

Estimating the United States Patient Population Size Meeting Audiologic Candidacy for Cochlear Implantation

OBJECTIVE

This study aimed to estimate the size of the United States candidacy pool meeting expanded Center for Medicare Services criteria for cochlear implantation.

STUDY DESIGN

Retrospective cross-sectional.

SETTING

Tertiary care center.

METHODS

Preimplantation audiometric data from 486 patients seen at a single academic medical center were collected retrospectively and used to generate a predictive model of AzBio score based on audiometric pure tone thresholds. This model was then used to estimate nationally representative cochlear implantation (CI)-candidacy using pure tone averages included in the National Health and Nutrition Examination Survey. Qualitative and quantitative analyses were performed.

RESULTS

We find that the estimated prevalence of CI candidacy in individuals 65 years of age or older is expected to more than double with a change in the CI candidacy criteria from ≤40% to ≤60% (from 1.42%, 95% confidence interval [1.33, 1.63] to 3.73% [2.71, 6.56]) on speech testing. We also found the greatest absolute increase in candidacy in the 80+ age group, increasing from 4.14% [3.72, 5.1] of the population meeting the ≤40% criteria to 12.12% [9.19, 18.35] meeting the ≤60% criteria.

CONCLUSION

The United States population size meeting expanded CMS audiologic criteria for cochlear implantation is estimated to be 2.5 million adults and 2.1 million age 65 or older. Changing the CI candidacy criteria from ≤40% to ≤60% on CI testing has the greatest effect on the eligible patient population in the >65-year-old age group. The determination of utilization rates in newly eligible patients will require further study.

National Trends in Cochlear Implantation Across the Department of the Defense: A Case for Inclusion as a General Otolaryngology Core Competency

OBJECTIVE

With ongoing national expansions in cochlear implantation (CI) candidacy criteria, more patients qualify for CI today than ever before. Among US veterans and military service members, the prevalence of qualifying degrees of hearing loss secondary to occupational noise exposure exceeds the general population. The primary aim of the current work was to evaluate CI trends across the military health system.

STUDY DESIGN

Database review.

SETTING

Military and civilian practices.

PATIENTS

Department of Defense (DoD) beneficiaries who underwent CI.

MAIN OUTCOME MEASURES

CI rates between 2010 and 2019.

RESULTS

A total of 3,573 cochlear implant operations were performed among DoD beneficiaries from 2010 to 2019. A majority of patients (55%) were older than 64 years, with the next most commonly implanted age group being 0 to 4 years of age (14%). From 2010 to 2019, annual CI increased at a rate of 7.9% per year for all implantation over the study period ( r = 0.97, p < 0.0001); there was a statistically significant difference of this rate compared with tympanoplasty, which was used as a reference procedure (rate, -1.9%; p = 0.03). This trend was similar for beneficiaries implanted both in military (11.9% per year, r = 0.77, p = 0.009) and civilian facilities (7.7% per year, r = 0.96, p < 0.0001); there was no statistically significant difference between the annual growth rates of these groups ( p = 0.68).

CONCLUSIONS

Although the number of devices implanted is rapidly increasing among DoD beneficiaries, reported national utilization rates remain low. This disparity likely exists in the general public, considering the aging demographic in the West and continual expansions in US Federal Drug Administration labeling. These data suggest that widespread expansion of the procedure to general otolaryngology practices will be required to meet current and future demands for CI. For this reason, CI should be considered for "key indicator" designation among residency training programs.

Preliminary Evidence to Support a De-Escalated Cochlear Implant Programming Paradigm for New Adult Recipients: A Systematic Review

Background: No standard schedule for cochlear implant (CI) programming has been developed, and common practices may have CI recipients seen in excess of what is necessary. The objective of this study was to review evidence for a de-escalated, evidence-based schedule for adult CI programming. Methods: Systematic review was undertaken in March 2023 of PubMed, Scopus, and CINAHL databases using the Preferred Reporting Items for Systemic Reviews and Meta-analyses (PRISMA) guidelines. Studies were included if (1) they evaluated an evidence-based programming/follow-up schedule in new adult CI patients or (2) they evaluated programming or outcomes in a longitudinal fashion such that they could inform CI follow-up strategies. Level of evidence was evaluated using the LEGEND evidence assessment tool. Results: Our review identified 940 studies. After screening with a priori inclusion criteria, 18 studies were ultimately included in this review. Of these, 2 demonstrated feasibility of de-escalated approaches to new adult CI programming. The remainder presented longitudinal speech and programming parameter data that demonstrated relative stability of both categories by 3 to 6 months post-activation. Conclusions: Overall, there is a paucity of literature evaluating any form of evidence-based CI programming or follow-up. Most applicable data derive from longitudinal outcomes featured in studies of other CI features, with only a handful of studies directly evaluating CI programming strategies over time. However, stability in outcomes and programming detailed in the available data supports consideration of a de-escalated programming paradigm that could primarily limit programming to the very early post-activation period (before 3 to 6 months) to enhance patient care and reduce operational strains on cochlear implant programs.

Examining the Spatial Varying Effects of Sociodemographic Factors on Adult Cochlear Implantation Using Geographically Weighted Poisson Regression

OBJECTIVE

To (i) demonstrate the utility of geographically weighted Poisson regression (GWPR) in describing geographical patterns of adult cochlear implant (CI) incidence in relation to sociodemographic factors in a publicly funded healthcare system, and (ii) compare Poisson regression and GWPR to fit the aforementioned relationship.

STUDY DESIGN

Retrospective study of provincial CI Program database.

SETTING

Academic hospital.

PATIENTS

Adults 18 years or older who received a CI from 2020 to 2021.

INTERVENTIONS

Cochlear implant.

MAIN OUTCOME MEASURES

CI incidence based on income level, education attainment, age at implantation, and distance from center, and spatial autocorrelation across census metropolitan areas.

RESULTS

Adult CI incidence varied spatially across Ontario (Moran's I = 0.04, p < 0.05). Poisson regression demonstrated positive associations between implantation and lower income level (coefficient = 0.0284, p < 0.05) and younger age (coefficient = 0.1075, p < 0.01), and a negative association with distance to CI center (coefficient = -0.0060, p < 0.01). Spatial autocorrelation was significant in Poisson model (Moran's I = 0.13, p < 0.05). GWPR accounted for spatial differences (Moran's I = 0.24, p < 0.690), and similar associations to Poisson were observed. GWPR further identified clusters of implantation in South Central census metropolitan areas with higher education attainment.

CONCLUSIONS

Adult CI incidence demonstrated a nonstationary relationship between implantation and the studied sociodemographic factors. GWPR performed better than Poisson regression in accounting for these local spatial variations. These results support the development of targeted interventions to improve access and utilization to CIs in a publicly funded healthcare system.

Effect of a Global Pandemic on Adult and Pediatric Cochlear Implantation across the United States

OBJECTIVE

To characterize the effect of the COVID-19 pandemic on national cochlear implantation utilization by age using inclusive cochlear implantation data from two manufacturers between 2015 and 2020.

STUDY DESIGN

Analysis of prospectively registered consecutive patient data from two major cochlear implant (CI) manufacturers in the United States.

PATIENTS

Children or adults who received CIs.

INTERVENTIONS

Cochlear implantation.

MAIN OUTCOME MEASURES

Annual implantation utilization by age.

RESULTS

A total of 46,804 patients received CIs from the two participating manufacturers between 2015 and 2020. The annual number of implant recipients increased significantly during the first 5 years of the study period for both children and adults, from a total of 6,203 in 2015 to 9,213 in 2019 (p < 0.001). During 2020, there was a 13.1% drop in national cochlear implantation utilization across all ages compared with 2019, including a drop of 2.2% for those ≤3 years old, 3.8% for those 4-17 years old, 10.1% for those 18-64 years old, 16.6% for those 65-79 years old, and 22.5% for those ≥80 years old. In a multivariable linear regression model, the percent drop in CIs differed significantly by age-group (p = 0.005).

CONCLUSIONS

Especially in light of the prepandemic projected CI counts for 2020, the COVID-19 pandemic reduced national cochlear implantation utilization by over 15% among Medicare-aged patients and by almost 25% among those ≥80 years old, resulting in more than a 3-year setback in total annual CIs. Children were less affected, with those ≤3 years old experiencing minimal interruption during 2020.