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Labree B, Sereda M, Cullington H, Johnson S, Church P, Dunster J, Hoare DJ. Evaluation of factors predicting tinnitus outcomes following cochlear implantation: Protocol for a prospective quasi-experimental study. PLoS One 2024; 19:e0302790. [PMID: 38885210 PMCID: PMC11182524 DOI: 10.1371/journal.pone.0302790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/10/2024] [Indexed: 06/20/2024] Open
Abstract
Cochlear implantation is an effective intervention to restore useful aspects of hearing function in adults with severe-to-profound hearing loss. Tinnitus, the perception of sound in the absence of an external source, is common in people with severe-to-profound hearing loss. Existing evidence suggests cochlear implantation may be effective in reducing the negative impact of tinnitus in this population. However, this is contradicted by data suggesting that up to half of cochlear implant recipients experience tinnitus, and that some of these patients who did not have tinnitus before cochlear implantation experience it after surgery or cochlear implant activation. Most evidence on the effects of cochlear implantation on tinnitus comes from secondary data in cochlear implant studies primarily concerned with hearing-related outcomes. Hence, the quality of the evidence for effects on tinnitus is low and not suitable to inform clinical recommendations or decision-making. This study will systematically collect data on tinnitus and tinnitus-related outcomes from patients at multiple points during the cochlear implant pathway to characterise changes in tinnitus. This will improve our understanding of the effects of cochlear implantation for tinnitus in adults with severe to profound hearing loss and inform the design of clinical trials of cochlear implantation for tinnitus.
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Affiliation(s)
- Bas Labree
- NIHR Nottingham Biomedical Research Centre, Nottingham, United Kingdom
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Magdalena Sereda
- NIHR Nottingham Biomedical Research Centre, Nottingham, United Kingdom
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Helen Cullington
- Auditory Implant Service, University of Southampton, Southampton, United Kingdom
| | - Susan Johnson
- Nottingham Auditory Implant Programme, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Paige Church
- NIHR Nottingham Biomedical Research Centre, Nottingham, United Kingdom
- NIHR Clinical Research Network (CRN) East Midlands, Nottingham Health Science Partners, Nottingham, United Kingdom
| | | | - Derek J. Hoare
- NIHR Nottingham Biomedical Research Centre, Nottingham, United Kingdom
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, University of Nottingham, Nottingham, United Kingdom
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Radulescu L, Astefanei O, Serban R, Cozma S, Butnaru C, Martu C. The Validation of the Speech, Spatial and Qualities of Hearing Scale SSQ12 for Native Romanian Speakers with and without Hearing Impairment. J Pers Med 2024; 14:90. [PMID: 38248791 PMCID: PMC10821130 DOI: 10.3390/jpm14010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND The perceived impact of hearing loss varies considerably among those affected due to the heterogeneous types of hearing loss, their diverse etiologies, and the different rehabilitation possibilities. Therefore, assessing listening skills in a daily context using questionnaires is essential. This study aimed to investigate the validity and reliability of the adapted version of the Speech, Spatial and Qualities of Hearing Scale 12 (SSQ12) in the Romanian language. MATERIALS AND METHODS The SSQ12 is a 12-item self-reporting questionnaire that assesses a range of everyday listening situations. The internal consistency, test-retest reliability, and validity of the r-SSQ12 questionnaire resulting from the adaptation of the original scale were investigated. RESULTS The responses of 183 subjects aged between 11 and 79 years were evaluated. In total, 121 subjects had hearing loss (19 adolescents), and 62 subjects had normal hearing (11 adolescents). Significant differences were observed in the means of the overall score and for individual items between normal-hearing subjects and subjects with hearing loss. The SSQ12 had high internal consistency (Cronbach's alpha = 0.97), and the test-retest scores were highly correlated. CONCLUSIONS The SSQ12 scale can be used to investigate the self-reporting of hearing quality in both general populations to identify hearing disorders and populations with hearing loss.
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Affiliation(s)
- Luminita Radulescu
- Doctoral School, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (L.R.); (S.C.)
- ENT Clinic Department, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.S.); (C.B.); (C.M.)
| | - Oana Astefanei
- Doctoral School, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (L.R.); (S.C.)
| | - Roxana Serban
- ENT Clinic Department, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.S.); (C.B.); (C.M.)
| | - Sebastian Cozma
- Doctoral School, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (L.R.); (S.C.)
- ENT Clinic Department, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.S.); (C.B.); (C.M.)
| | - Corina Butnaru
- ENT Clinic Department, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.S.); (C.B.); (C.M.)
| | - Cristian Martu
- ENT Clinic Department, “Grigore T Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (R.S.); (C.B.); (C.M.)
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Mecklenburg DJ, Graham PL, James CJ. Relationships Between Speech, Spatial and Qualities of Hearing Short Form SSQ12 Item Scores and their Use in Guiding Rehabilitation for Cochlear Implant Recipients. Trends Hear 2024; 28:23312165231224643. [PMID: 38361477 PMCID: PMC10874150 DOI: 10.1177/23312165231224643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 02/17/2024] Open
Abstract
Cochlear implantation successfully improves hearing in most adult recipients. However, in rare cases, post-implant rehabilitation is required to maximize benefit. The primary aim of this investigation was to test if self-reports by cochlear implant users indicate the need for post-implant rehabilitation. Listening performance was assessed with the Speech, Spatial and Qualities short-form SSQ12, which was self-administered via a web-based survey. Subjects included over 2000 adult bilateral or unilateral cochlear implant users with at least one year of experience. A novel application of regression tree analysis identified core SSQ12 items that serve as first steps in establishing a plan for further rehabilitation: items 1, 8, and 11 dealing with single-talker situations, loudness perception, and clarity, respectively. Further regression and classification tree analyses revealed that SSQ12 item scores were weakly related to age, degree of tinnitus, and use of bilateral versus unilateral implants. Conversely, SSQ12 scores were strongly associated with self-rated satisfaction and confidence in using their cochlear implant. The SSQ12 total scores did not vary significantly over 1-9 or more years' experience. These findings suggest that the SSQ12 may be a useful tool to guide rehabilitation at any time after cochlear implantation. Identification of poor performance may have implications for timely management to improve the outcomes, through various techniques such as device fitting adjustments, counseling, active sound exposure, and training spatial hearing.
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Affiliation(s)
| | - Petra L. Graham
- School of Mathematical and Physical Sciences, Macquarie University, North Ryde, Australia
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Buchholz M, Weber N, Borel S, Sayah S, Xie F, Schulz JB, Reetz K, Boesch S, Klopstock T, Karin I, Schöls L, Grobe-Einsler M, Klockgether T, Davies EH, Schmeder M, Nadke A, Michalowsky B. Patient-reported, health economic and psychosocial outcomes in patients with Friedreich ataxia (PROFA): protocol of an observational study using momentary data assessments via mobile health app. BMJ Open 2023; 13:e075736. [PMID: 37527887 PMCID: PMC10394552 DOI: 10.1136/bmjopen-2023-075736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
INTRODUCTION Friedreich ataxia (FA) is the most common hereditary ataxia in Europe, characterised by progressively worsening movement and speech impairments with a typical onset before the age of 25 years. The symptoms affect the patients' health-related quality of life (HRQoL) and psychosocial health. FA leads to an increasing need for care, associated with an economic burden. Little is known about the impact of FA on daily lives and HRQoL. To fill that gap, we will assess patient-reported, psychosocial and economic outcomes using momentary data assessment via a mobile health application (app). METHODS AND ANALYSIS The PROFA Study is a prospective observational study. Patients with FA (n=200) will be recruited at six European study centres (Germany, France and Austria). We will interview patients at baseline in the study centre and subsequently assess the patients' health at home via mobile health app. Patients will self-report ataxia severity, HRQoL, speech and hearing disabilities, coping strategies and well-being, health services usage, adverse health events and productivity losses due to informal care on a daily to monthly basis on the app for 6 months. Our study aims to (1) validate measurements of HRQoL and psychosocial health, (2) assess the usability of the mobile health app, and (3) use descriptive and multivariate statistics to analyse patient-reported and economic outcomes and the interaction effects between these outcomes. Insights into the app's usability could be used for future studies using momentary data assessments to measure outcomes of patients with FA. ETHICS AND DISSEMINATION Ethical approval has been obtained from the Ethics Committee of the University Medicine of Greifswald, (BB096/22a, 26 October 2022) and from all local ethics committees of the participating study sites. Findings of the study will be published in peer-reviewed journals, presented at relevant international/national congresses and disseminated to German and French Patient Advocacy Organizations. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Registry (NCT05943002); Pre-results.
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Affiliation(s)
- Maresa Buchholz
- Translational Health Care Research, German Center for Neurodegenerative Diseases, Site Rostock/Greifswald, Greifswald, Germany
| | - Niklas Weber
- Translational Health Care Research, German Center for Neurodegenerative Diseases, Site Rostock/Greifswald, Greifswald, Germany
| | - Stephanie Borel
- Paris Brain Institute (ICM - Institut du Cerveau), INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne University, Paris, France
| | - Sabrina Sayah
- Paris Brain Institute (ICM - Institut du Cerveau), INSERM, CNRS, Assistance Publique-Hôpitaux de Paris (AP-HP), Sorbonne University, Paris, France
| | - Feng Xie
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Jörg B Schulz
- Department of Neurology, RWTH Aachen University, Aachen, Germany
| | - Kathrin Reetz
- Department of Neurology, RWTH Aachen University, Aachen, Germany
| | - Sylvia Boesch
- Clinical Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Thomas Klopstock
- Friedrich-Baur-Institut, Department of Neurology, Ludwig Maximilians University of Munich, Munich, Germany
| | - Ivan Karin
- Friedrich-Baur-Institut, Department of Neurology, Ludwig Maximilians University of Munich, Munich, Germany
| | - Ludger Schöls
- Hertie Institute for Clinical Brain Research and Center of Neurology, University Hospital Tübingen, Tubingen, Germany
| | - Marcus Grobe-Einsler
- German Center for Neurodegenerative Diseases, Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Thomas Klockgether
- German Center for Neurodegenerative Diseases, Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | | | | | - Andreas Nadke
- Deutsche Heredo-Ataxie-Gesellschaft, Stuttgart, Germany
| | - Bernhard Michalowsky
- Translational Health Care Research, German Center for Neurodegenerative Diseases, Site Rostock/Greifswald, Greifswald, Germany
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Lewis AT, Gergely V. Influence of Bone Conduction Hearing Implantation on Health-Related Quality of Life for Patients with Chronic Otitis Media. J Clin Med 2022; 11:5449. [PMID: 36143094 PMCID: PMC9502475 DOI: 10.3390/jcm11185449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Chronic otitis media is a major public health burden that can result in a disabling hearing loss. Bone conduction hearing implants are an accepted form of hearing rehabilitation in these patients, but evidence supporting their usage typically comes from studies investigating mixed indications. The objective of our study was to examine how these devices impact health-related quality of life and hearing-disability in adult patients suffering from chronic otitis media. METHODS Health Utilities Index-mark III (n = 10) and Speech Spatial and Qualities of Hearing-49 data (n = 6) were extracted for adult patients with chronic otitis media from an international hearing implant registry. Data were compared at baseline and at 12-month post-implantation with a bone conduction hearing implant. RESULTS Patients demonstrated a clinically relevant mean utility gain of 0.145 following implantation and clinically relevant mean improvement in global speech spatial and qualities of hearing score following implantation. CONCLUSIONS Bone conduction implantation was found to improve hearing and health-related quality of life and reduce hearing disability in a small cohort of patients with chronic otitis media. These data highlight the importance of providing appropriate hearing rehabilitation for individuals with chronic otitis media.
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Affiliation(s)
- Aaran T. Lewis
- School of Public Health and Community Medicine, University of Gothenburg, 40530 Gothenburg, Sweden
- Cochlear Limited, 43533 Mölnlycke, Sweden
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Assouly KKS, Arts RAGJ, Graham PL, van Dijk B, James CJ. Influence of tinnitus annoyance on hearing-related quality of life in cochlear implant recipients. Sci Rep 2022; 12:14423. [PMID: 36002556 PMCID: PMC9402917 DOI: 10.1038/s41598-022-18823-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/19/2022] [Indexed: 01/10/2023] Open
Abstract
Tinnitus is a common symptom in cochlear implant (CI) recipients. There is no clear evidence of the influence of tinnitus on hearing-related quality of life (QoL) in this population. The aim of this study was to assess the relationship between hearing-related QoL measured by the Speech, Spatial and Qualities of Hearing scale (SSQ12) and tinnitus annoyance or perceived change in tinnitus annoyance after cochlear implantation. The study sample consisted of 2322 implanted adults across France, Germany, Ireland, Italy, the Netherlands, Sweden and the United Kingdom. Information relating to QoL measured using the SSQ12 and tinnitus annoyance and change in tinnitus annoyance, assessed using single-item questions, were collected one or more years post-implantation. The relationship between SSQ12 score and tinnitus annoyance or change in tinnitus annoyance was analysed using linear models adjusted for age and unilateral versus bilateral implants. Tukey pairwise tests were used to compare mean SSQ12 scores across levels of tinnitus annoyance and changes. Tinnitus prevalence was 33.9% post-implantation. Recipients with tinnitus had a significantly lower SSQ12 score than recipients without tinnitus. SSQ scores varied significantly with tinnitus annoyance, age and unilateral versus bilateral implants. Overall, CI recipients who experienced less bothersome tinnitus reported better hearing-related QoL. Healthcare professionals should be aware of the influence of tinnitus on CI recipients' hearing to manage patient expectations.
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Affiliation(s)
- Kelly K S Assouly
- Department of Otorhinolaryngology and Head & Neck Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
- University Medical Center Utrecht Brain Center, Utrecht University, Utrecht, The Netherlands.
- Cochlear Technology Centre Belgium, Mechelen, Belgium.
| | | | - Petra L Graham
- School of Mathematical and Physical Sciences, Macquarie University, North Ryde, NSW, Australia
| | - Bas van Dijk
- Cochlear Technology Centre Belgium, Mechelen, Belgium
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Maruthurkkara S, Case S, Rottier R. Evaluation of Remote Check: A Clinical Tool for Asynchronous Monitoring and Triage of Cochlear Implant Recipients. Ear Hear 2022; 43:495-506. [PMID: 34320523 PMCID: PMC8862779 DOI: 10.1097/aud.0000000000001106] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 06/22/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND A new Remote Check App permits remote self-testing of hearing function for Nucleus cochlear implant (CI) recipients and enables asynchronous review by their clinician to support patient-management decisions. OBJECTIVES To evaluate the Remote Check App for: (1) ease of use; (2) overall acceptance of the test battery by CI recipient or their carer in the home setting; (3) test-retest reliability of audiological threshold and speech recognition measures via wireless streaming; and (4) to compare outcomes from patient-driven measures with conventional clinician-driven measurements of aided-hearing function. DESIGN Single-site, prospective, repeated-measures cohort study with 32 experienced CI users (28 adults and 4 children). METHODS Participants completed self-testing using the Remote Check app at home and in the clinic. Measures include audiological, objective and subjective tests. Self-administered speech recognition in noise, via the digit triplets test (DTT) and aided thresholds, via the aided threshold test (ATT) were reassessed in free-field and by clinicians following conventional clinical protocols. Results of ATT and DTT were compared across test conditions. Completion time and perceived ease of self-driven assessments were documented. Insights from subsequent real-world experience with Remote Check are summarized and compared to the study findings. RESULTS Remote Check was rated as easy to use by the majority (87%) of subjects. Mean group test-retest score differences for self-administered testing within the clinic versus at-home environments were nonsignificant (p > 0.05): 1.4 dB (SD = 1.97) for ATT and 1.6 dB (SD = 1.54) for DTT. Mean group test-retest score difference for patient-driven DTT in streamed versus the free-field condition was 1.8 dB (SD = 2.02). Self-administered, streamed, ATT via Remote Check, resulted in significantly lower thresholds compared to clinician-driven warble-tone thresholds in the free-field by 6.7 dB (SD = 6.8) (p < 0.001). ATT thresholds via Remote Check were not significantly different from predicted thresholds based on the Threshold Sound Pressure Level of the sound processor. CONCLUSION Remote Check is the first CI telehealth assessment tool that uses wireless streaming to enable comprehensive, easy and reliable self-testing of hearing function by the CI recipient or their carer, in the comfort of their home. Asynchronous access to test results can assist clinicians in monitoring and triaging individuals for appropriate patient-management based on their needs. Use of remote monitoring may also help to reduce the burden of unnecessary clinic visits on clinic resources, patient travel time and associated costs. Remote Check is an important step toward addressing the current growing need for asynchronous audiological telepractice to support long-term care of CI recipients.
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Affiliation(s)
- Saji Maruthurkkara
- Cochlear Limited, 1 University Ave Macquarie University, Sydney, Australia
| | - Sasha Case
- Cochlear Limited, 1 University Ave Macquarie University, Sydney, Australia
| | - Riaan Rottier
- Cochlear Limited, 1 University Ave Macquarie University, Sydney, Australia
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Wrobel C, Bevis NF, Klinge‐Strahl A, Strenzke N, Beutner D. Performance and self-perceived hearing impairment after cochlear implantation in Menière's disease. Laryngoscope Investig Otolaryngol 2022; 7:219-225. [PMID: 35155801 PMCID: PMC8823173 DOI: 10.1002/lio2.714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/16/2021] [Accepted: 11/27/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Evaluation of the self-perceived hearing impairment and performance after cochlear implantation in patients with definite Menière's disease (MD). PATIENTS AND METHODS Seventeen unilaterally or bilaterally profoundly hearing-impaired patients suffering from MD who received a cochlear implantat (CI) were eligible for inclusion in this study. Their self-perceived hearing impairment using the short Speech Spatial and Qualities of Hearing Scale (SSQ12) as well as their performance in speech perception (German language Freiburger mono- and multisyllable test, Oldenburger sentence test) were compared with a best-matched control group of non-MD patients up to 24 months of follow-up. RESULTS MD patients improved significantly in perception of monosyllables presented at 65 dBSPL, from preoperatively best aided 18.2% [2.4, 34.0] to 51.7% [39.4, 63.9] 1 year after cochlear implantation (mean [95% confidence interval]). Their performance approached the matched controls with 63.2% [55.7, 70.8]. Monosyllables presented at a lower intensity of 55 dBSPL revealed a significant underperformance of the MD patients (21.1% [12.6, 29.6]) in contrast to the non-MD controls (39.1% [30.9, 47.4]) 12 months post-CI. Self-assessed hearing disability was significantly more pronounced in MD patients with a mean total SSQ12 score of 3.6 [2.4, 4.9] in comparison to 6.1 [5.4, 6.8] of the matched non-MD controls after 12 months of cochlear implantation. CONCLUSION Cochlear implantation substantially improves hearing capabilities in profoundly hearing-impaired patients with MD, but they tend to underperform in comparison to non-MD patients at least at lower sound pressure levels. This is likely one reason for the poorer self-assessed hearing function of cochlear implanted MD patients. LEVEL OF EVIDENCE 3, retrospective, nonrandomized follow-up study.
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Affiliation(s)
- Christian Wrobel
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Medical Center GöttingenGöttingenGermany
| | - Nicholas F. Bevis
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Medical Center GöttingenGöttingenGermany
| | - Astrid Klinge‐Strahl
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Medical Center GöttingenGöttingenGermany
| | - Nicola Strenzke
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Medical Center GöttingenGöttingenGermany
| | - Dirk Beutner
- Department of Otorhinolaryngology, Head and Neck SurgeryUniversity Medical Center GöttingenGöttingenGermany
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Mauch H, Kaur J, Irwin C, Wyss J. Design, implementation, and management of an international medical device registry. Trials 2021; 22:845. [PMID: 34823566 PMCID: PMC8613936 DOI: 10.1186/s13063-021-05821-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 11/12/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Registries are powerful clinical investigational tools. Although in hospitals registries may be mandated, industry-sponsored, international registries are voluntary and therefore can require clearer objectives and more planning. The registry also needs sufficient resources and appropriate measurement tools to motivate long-term participation and ensure success. METHODS We summarize our learnings from 10 years of running a medical device registry that surveys patient-reported benefits of hearing implants. RESULTS We enlisted 77 participating clinics globally, who actively recruited a total of more than 1500 hearing implant users. We identified the stages in developing a registry specific to hearing loss. Furthermore, we report the challenges and successes in design and implementation and make recommendations for future registries. CONCLUSIONS Data collection infrastructure needs to be kept up to date throughout the defined registry lifetime, and it is essential to oversee data quality and completeness. Compliance at registry sites is important for data quality and needs to be weighed against the cost of site monitoring. To motivate sites to enter data accurately and expeditiously, we facilitated easy access to their own data which helped to support their clinical routine. TRIAL REGISTRATION ClinicalTrials.gov NCT02004353. 9th December 2013.
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