Denise Yan, Aria Nawab, Molly Smeal, Xue-Zhong Liu
{"title":"Etiologic Diagnosis of Genetic Hearing Loss in an Ethnically Diverse Deafness Cohort.","authors":"Denise Yan, Aria Nawab, Molly Smeal, Xue-Zhong Liu","doi":"10.1159/000540202","DOIUrl":"10.1159/000540202","url":null,"abstract":"<p><strong>Introduction: </strong>Hearing loss is a common sensory disorder that impacts patients across the lifespan. Many genetic variants have been identified that contribute to non-syndromic hearing loss. Yet, genetic testing is not routinely administered when hearing loss is diagnosed, particularly in adults. In this study, genetic testing was completed in patients with known hearing loss.</p><p><strong>Methods: </strong>A total of 104 patients who were evaluated for hearing loss were enrolled and received genetic testing.</p><p><strong>Results: </strong>Of those 104 patients, 39 had available genetic testing, 20 had one missing allele, and 45 yielded no genetic diagnosis. Of the 39 cases with genetic testing data, 24 were simplex cases, and 15 were multiplex cases. A majority of patients presented with an autosomal recessive inheritance pattern (n = 32), 26 of whom presented with congenital hearing loss. 38% of cases were positive for GJB2 mutation with c.35delG being the most common pathogenic variant. These findings are consistent with previous literature suggesting GJB2 mutations are the most common causes of non-syndromic hearing loss.</p><p><strong>Conclusion: </strong>Given the frequency of genetic variants in patients with hearing loss, genetic testing should be considered a routine part of the hearing loss work-up, particularly as gene therapies are studied and become more widely available.</p><p><strong>Lay summary: </strong>Many genetic variants have been identified that contribute to non-syndromic hearing loss. Given the frequency of genetic variants in patients with hearing loss, genetic testing should be considered a routine part of the hearing loss work-up.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"70-79"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142057399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Annett Franke-Trieger, Susen Lailach, Stefan B Strahl, Katrin Murrmann, Erik Schebsdat, Marcus Neudert, Thomas Zahnert
{"title":"Voltage Matrix Algorithm for Intraoperative Detection of Cochlear Implant Electrode Misplacement.","authors":"Annett Franke-Trieger, Susen Lailach, Stefan B Strahl, Katrin Murrmann, Erik Schebsdat, Marcus Neudert, Thomas Zahnert","doi":"10.1159/000543264","DOIUrl":"10.1159/000543264","url":null,"abstract":"<p><strong>Objective: </strong>To develop an algorithm, based on the voltage matrix, for detecting regular cochlear implant (CI) electrode position during the implantation procedure, tip fold-over or basal kinking for lateral-wall electrodes. The availability of an algorithm would be valuable in clinical routine, as incorrect positioning of the electrode array can potentially be recognized intraoperatively.</p><p><strong>Design: </strong>In this retrospective study, intraoperative voltage matrix and postoperative digital volume tomography of 525 CI recipients were analyzed. On the basis of these data an algorithm was developed for detecting various kinds of electrode misplacements.</p><p><strong>Results: </strong>Seven incorrect electrode positions, three tip fold (0.57%) and four basal kinking (0.76%) were detected. For detecting correct positioning, a sensitivity of 100%, a specificity of 83.3%, and a positive predictive value (PPV) of 99.8% were found. For detecting tip fold-over, a sensitivity of 100%, a specificity of 100%, and a PPV of 100% were found. For detecting basal kinking, a sensitivity of 66%, a specificity of 100%, and a PPV of 100% were determined.</p><p><strong>Conclusion: </strong>The algorithm was found to be an effective screening tool for detecting tip fold-over or basal kinking.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"252-262"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12143856/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142923939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Estimation of Hearing Thresholds with Auditory Steady-State Responses to Narrow-Band Chirps in Children.","authors":"Hiroyuki Chiba, Tsukasa Ito, Toshinori Kubota, Hirooki Matsui, Chikako Shinkawa, Seiji Kakehata","doi":"10.1159/000541180","DOIUrl":"10.1159/000541180","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to evaluate the utility of auditory steady-state responses (ASSRs) to narrow-band chirps (NB-chirps) for estimating hearing levels in children.</p><p><strong>Design: </strong>Thresholds from the NB-chirp ASSR were evaluated in 30 sedated children with normal hearing or hearing loss. The correlation between the NB-chirp ASSR and pure-tone audiometry (PTA) thresholds was analyzed, and the difference score (DS) between these thresholds was calculated. Data from the NB-chirp ASSR were compared to retrospective data from conventional ASSR to exponentially amplitude-modulated tones in 25 sedated children.</p><p><strong>Results: </strong>Positive correlations between the NB-chirp ASSR and PTA thresholds were found at 500, 1,000, 2,000, and 4,000 Hz. Multiple comparisons of the DSs for the NB-chirp ASSR and PTA revealed significant differences at 500-2,000 Hz and 4,000 Hz, as well as 1,000-2,000 Hz, and 4,000 Hz. Comparisons of the DSs demonstrated that the DS of the NB-chirp ASSR was significantly smaller than that of the conventional ASSR at 2,000 Hz. Furthermore, the testing times for the NB-chirp ASSR were significantly shorter than those for the conventional ASSR.</p><p><strong>Conclusion: </strong>The NB-chirp ASSR closely reflected the PTA thresholds, and the testing time was shorter than that of the conventional ASSR. Thus, this study demonstrated that the NB-chirp ASSR is useful for hearing threshold estimation in children.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"89-100"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142134557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alexander Stutley, Caris Bogdanov, Marcus Windsor Rao Voola, Peter Friedland, Dayse Távora-Vieira
{"title":"Intraoperative Compound Action Potentials as a Predictor of Postoperative Cortical Auditory Evoked Potentials in Cochlear Implant Users.","authors":"Alexander Stutley, Caris Bogdanov, Marcus Windsor Rao Voola, Peter Friedland, Dayse Távora-Vieira","doi":"10.1159/000540576","DOIUrl":"10.1159/000540576","url":null,"abstract":"<p><strong>Introduction: </strong>Electrically evoked cortical auditory evoked potentials (ECAEPs) are central brain responses to auditory stimuli that correlate with postoperative cochlear implant (CI) hearing outcomes. They differ from electrically evoked compound action potentials (ECAPs) which are peripheral responses that can be elicited intraoperatively and may also predict CI hearing outcomes. It is not known to what degree ECAP and ECAEP responses are associated with each other. Such a correlation, if present, may allow for an earlier and more accurate prediction of postoperative hearing outcomes.</p><p><strong>Methods: </strong>This retrospective study involved 42 adult CI users. Threshold levels and amplitude growth function slopes of intraoperative ECAPs were compared to the latencies and peak-to-peak amplitudes of postoperative ECAEP responses at three different cochlear electrode array sites (apical, medial, and basal).</p><p><strong>Results: </strong>A weak positive relationship was found between intraoperative ECAP thresholds and ECAEP N1-P2 peak-to-peak amplitude (r = 0.301, p = 0.005). Time between ECAP and ECAEP measurements was weakly correlated with P1-N1 peak-to-peak amplitude (r = 0.321, p = 0.002) and ECAEP N1-P2 peak-to-peak amplitude (r = 0.340, p = 0.001). ECAP amplitude growth function slopes varied by electrode location (χ2 = 26.701, df = 2, p = 0. 000002).</p><p><strong>Conclusion: </strong>These results suggest that intraoperative ECAP responses do not robustly predict postoperative ECAEP responses, providing caution against the use of ECAPs as a predictive tool for CI hearing outcomes.</p><p><strong>Introduction: </strong>Electrically evoked cortical auditory evoked potentials (ECAEPs) are central brain responses to auditory stimuli that correlate with postoperative cochlear implant (CI) hearing outcomes. They differ from electrically evoked compound action potentials (ECAPs) which are peripheral responses that can be elicited intraoperatively and may also predict CI hearing outcomes. It is not known to what degree ECAP and ECAEP responses are associated with each other. Such a correlation, if present, may allow for an earlier and more accurate prediction of postoperative hearing outcomes.</p><p><strong>Methods: </strong>This retrospective study involved 42 adult CI users. Threshold levels and amplitude growth function slopes of intraoperative ECAPs were compared to the latencies and peak-to-peak amplitudes of postoperative ECAEP responses at three different cochlear electrode array sites (apical, medial, and basal).</p><p><strong>Results: </strong>A weak positive relationship was found between intraoperative ECAP thresholds and ECAEP N1-P2 peak-to-peak amplitude (r = 0.301, p = 0.005). Time between ECAP and ECAEP measurements was weakly correlated with P1-N1 peak-to-peak amplitude (r = 0.321, p = 0.002) and ECAEP N1-P2 peak-to-peak amplitude (r = 0.340, p = 0.001). ECAP amplitude growth function slopes varied by el","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"58-69"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11809459/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141861685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthew McCall, Janitha Jayawardana, Jill Mustard, Joanne Lake, John Pearson, Philip Bird
{"title":"The Correlation between Age at Implant, Consistent Device Use, and Language Outcomes for Children Implanted under 18 Months.","authors":"Matthew McCall, Janitha Jayawardana, Jill Mustard, Joanne Lake, John Pearson, Philip Bird","doi":"10.1159/000542361","DOIUrl":"10.1159/000542361","url":null,"abstract":"<p><strong>Introduction: </strong>Research suggests deaf children who receive cochlear implants (CIs) at an early age can achieve age-appropriate language. Recent studies suggest age at full-time CI use is a better predictor of language outcomes than age at implant. The aim of this study was to investigate whether there are correlations between age at implantation, establishing consistent device use, and language outcomes in a cohort of young children in Aotearoa New Zealand.</p><p><strong>Methods: </strong>A retrospective analysis was conducted. The study included 46 participants, implanted by the Southern Cochlear Implant Programme by age 18 months. The median age at implant was 8 months. Device use was measured via data logging. Consistent device use was defined as ≥8 h per day. Language outcomes were measured at 2- and 3-year post-implantation using PLS-5.</p><p><strong>Results: </strong>Consistent use was established by 78.3% by 3 years. Language results were at least one SD higher for children who achieved consistent use within 2 years of implant. Language scores for Maori children were more than one SD lower than non-Maori, a finding not entirely explained by less usage. There was no correlation between age of implantation and length of time to consistent device use. The presence of additional disabilities affected consistent device use.</p><p><strong>Conclusion: </strong>Simply offering CIs earlier is not sufficient to improve language outcomes in the congenitally deaf population. Earlier consistent use was associated with better language outcomes for those implanted before 18 months of age, and language scores were higher for children who achieved consistent use within 2 years of implantation. There is a need to understand why children with pre-lingual deafness may not be achieving consistent device use, and by doing so, we would be a step closer to being able to tailor culturally appropriate supports and services that could help more children achieve better outcomes.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"197-206"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Nationwide Population-Based Study for Audio-Vestibular Disorders following COVID-19 Infection.","authors":"Hye Yeon Ko, Min Hee Kim","doi":"10.1159/000543211","DOIUrl":"10.1159/000543211","url":null,"abstract":"<p><strong>Introduction: </strong>To date, no study has reported the various otologic conditions associated with coronavirus disease 2019 (COVID-19) using population-based design. The aim of this study was to investigate the incidence and risk of audio-vestibular disorders (benign paroxysmal positional vertigo, sudden sensorineural hearing loss, Meniere's disease, vestibular neuritis, and tinnitus) increasing after COVID-19 infection.</p><p><strong>Methods: </strong>This retrospective population-based study was conducted using the National Health Insurance Service (NHIS)-COVID-19 cohort database of South Korea. We identified participants in the COVID-19 group using real-time reverse transcription-polymerase chain reaction tests. A matched cohort without COVID-19 was randomly selected in a 1:1 ratio. Benign paroxysmal positional vertigo, sudden sensorineural hearing loss, Meniere's disease, vestibular neuritis, and tinnitus were defined using diagnostic, medication, and procedure codes. The incidence and risk of these disorders were assessed in both groups using univariate and multivariate Cox proportional hazard analyses.</p><p><strong>Results: </strong>In total, 4,976,589 COVID-19 patients and an equivalent number of matched non-infected controls were analyzed. COVID-19 patients faced an increased risk of developing benign paroxysmal positional vertigo, sudden sensorineural hearing loss, vestibular neuritis, and tinnitus compared to controls in univariate and multivariate Cox hazard analyses. COVID patients were at an increased risk of Meniere's disease in the univariate analysis; however, the risk of Meniere's disease after COVID-19 did not reach statistical significance in the multivariate analysis.</p><p><strong>Conclusion: </strong>COVID-19 infection may increase the risk of benign paroxysmal positional vertigo, sudden sensorineural hearing loss, vestibular neuritis, and tinnitus.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"245-251"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142904072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan C Maass, Alexis Leiva, Mariela Torrente, Rodrigo Vergara, Chama Belkhiria, Carolina Delgado, Paul H Delano
{"title":"Supra-Threshold LS CE-Chirp Auditory Brainstem Response in the Elderly.","authors":"Juan C Maass, Alexis Leiva, Mariela Torrente, Rodrigo Vergara, Chama Belkhiria, Carolina Delgado, Paul H Delano","doi":"10.1159/000533683","DOIUrl":"10.1159/000533683","url":null,"abstract":"<p><strong>Introduction: </strong>Aging deteriorates peripheral and central auditory structures and functions. In elders, for an accurate audiological evaluation, it is important to explore beyond the cochlear receptor. Audiograms provide an estimation of hearing thresholds, while the amplitudes and latencies of supra-threshold auditory brainstem response (ABR) can offer noninvasive measures of the auditory pathways functioning. Regarding ABR, in young populations, level-specific chirp (LS CE-chirp) stimulus has been proposed as an alternative synchronizing method to obtain larger ABR responses than those evoked by clicks. However, the supra-threshold characteristics of chirp evoked ABR, and their association to hearing thresholds is relatively unknown in the elderly. The aim of this study was to evaluate supra-threshold LS CE-chirp ABRs in an aged population by comparing their features with click ABRs, and evaluating their relationship with audiometric hearing thresholds.</p><p><strong>Methods: </strong>We carried out a cross-sectional study to characterize the hearing of 125 adults aged over 65 years. We determined the audiometric hearing thresholds and supra-threshold ABRs elicited by LS CE-chirp and click stimuli at 80 dB nHL. We evaluated associations by means of partial correlations and covariate adjustment. We performed specific frequencies' analysis and subgroup analysis per hearing level.</p><p><strong>Results: </strong>Wave V responses had significantly shorter latencies and larger amplitudes when elicited by LS CE-chirp as compared to click-evoked responses. Audiometric hearing thresholds correlated with age, but ABR characteristics did not. We found mild correlations between hearing thresholds and ABR characteristics, predominantly at higher frequencies and with chirp. We found scarce evidence of correlation between ABR characteristics and the average of behavioral hearing thresholds between 0.5 to 4 kHz (0.5-4 kHz PTA). After subgroup analysis according to the hearing level, no stronger or more significant correlations were found between ABR characteristics and 0.5-4 kHz PTA.</p><p><strong>Discussion: </strong>In this study, we found that supra-threshold LS CE-chirp ABR presented some of the previously described similitudes and differences with supra-threshold click ABR in younger populations. Although, the average amplitude and latency of wave V evoked by LS CE-chirp were larger and faster than those evoked by clicks, these results should be taken with caution at the individual level, and further studies are required to state that LS CE-chirp ABRs are better than click ABRs in elders for clinical evaluations. We did not find consistent associations between hearing thresholds and supra-threshold wave V features, suggesting that these measures should be considered independently in the elderly.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"253-262"},"PeriodicalIF":1.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140029635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christian von Mitzlaff, Ivo Dobrev, Tahmine Farahmandi, Flurin Pfiffner, Christof Röösli
{"title":"Influence of the Intracranial Contents on the Head Motion under Bone Conduction.","authors":"Christian von Mitzlaff, Ivo Dobrev, Tahmine Farahmandi, Flurin Pfiffner, Christof Röösli","doi":"10.1159/000537724","DOIUrl":"10.1159/000537724","url":null,"abstract":"<p><strong>Introduction: </strong>The mechanism of non-osseous bone conduction pathways, involving the intracranial contents (ICC) of the skull, is still not well understood. This study aimed to investigate the influence of the ICC on the skull bone wave propagation, including dependence on stimulation location and coupling.</p><p><strong>Methods: </strong>Three Thiel-embalmed whole-head cadaver specimens were studied before and after the removal of the ICC. Stimulation was via the electromagnetic actuators from commercial bone conduction hearing aids. Osseous pathways were sequentially activated by mastoid, forehead, and bone-anchored hearing aid location stimulation via a 5-Newton steel headband or percutaneously implanted screw. Non-osseous pathways were activated by stimulation on the eye and dura via a 5-Newton steel headband and a custom-made pneumatic holder, respectively. Under each test condition, the 3D motion of the superior skull bone was monitored at ∼200 points.</p><p><strong>Results: </strong>The averaged response of the skull surface showed limited differences due to the removal of the ICC. In some isolated cases, the modal pattern on the skull surface showed a trend for an upshift (∼1/2 octave) in the observed natural frequencies for drained heads. This was also consistent with an observed trend for an upshift in the transition frequency in the estimated deformation across the lateral surfaces of the temporal bones. Such changes were consistent with the expected reduction in mass and damping due to the absence of the ICC.</p><p><strong>Conclusion: </strong>Overall, the ICC affect to a limited extent the motion of the skull bone, with a limited trend for a reduction of its natural frequencies.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"322-333"},"PeriodicalIF":1.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11309072/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139718057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Junhui Jeong, Jae Ho Chung, Soorack Ryu, Jong Dae Lee, Jin Kim, Ho Yun Lee, Chan Il Song, Young Sang Cho, Se A Lee, Beomcho Jun
{"title":"Monthly Variation in Bell's Palsy Based on Population Data of Korea.","authors":"Junhui Jeong, Jae Ho Chung, Soorack Ryu, Jong Dae Lee, Jin Kim, Ho Yun Lee, Chan Il Song, Young Sang Cho, Se A Lee, Beomcho Jun","doi":"10.1159/000536365","DOIUrl":"10.1159/000536365","url":null,"abstract":"<p><strong>Introduction: </strong>Several studies have reported that the number of patients with Bell's palsy varied significantly by month and season. However, few studies have reported the monthly variation in Bell's palsy based on the whole population. We investigated the monthly variation in Bell's palsy in Korea during a long-term period based on whole population data.</p><p><strong>Methods: </strong>This retrospective study used the data of the National Health Insurance Service of Korea, which included the entire Korean population from 2008 to 2020. The monthly incidence of Bell's palsy per 100,000 was evaluated in total and according to sex, age, and residence.</p><p><strong>Results: </strong>The total average monthly incidence differed significantly by month, with the highest observed in January (9.1 per 100,000) and the lowest in June (7.7 per 100,000) (p < 0.001). The average monthly incidence according to sex, age, and residence also varied significantly by month, with most of the highest values noted in January and the lowest in June.</p><p><strong>Conclusion: </strong>There was significant monthly variation in the incidence of Bell's palsy, with the highest in January during the winter and the lowest in June during the summer, based on whole population data over a long-term period in Korea.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"290-296"},"PeriodicalIF":1.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11309058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139974656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Assan Mary Cedras, Karina Moin-Darbari, Kim Foisy, Sylvie Auger, Don Nguyen, François Champoux, Maxime Maheu
{"title":"Questioning the Impact of Vestibular Rehabilitation in Mal de Debarquement Syndrome.","authors":"Assan Mary Cedras, Karina Moin-Darbari, Kim Foisy, Sylvie Auger, Don Nguyen, François Champoux, Maxime Maheu","doi":"10.1159/000533684","DOIUrl":"10.1159/000533684","url":null,"abstract":"<p><strong>Introduction: </strong>Mal de debarquement syndrome (MdDS) is a rare and poorly understood clinical entity defined as a persistent sensation of rocking and swaying that can severely affect the quality of life. To date, the treatment options are very limited. Even though vestibular rehabilitation (VR) efficacy following peripheral vestibular lesion is well-documented, little is known about its influence on MdDS. The objective of the study was to explore the influence of traditional VR program on postural control in a patient diagnosed with MdDS.</p><p><strong>Methods: </strong>We assessed 3 different participants: 1 healthy control; 1 participant with identified peripheral vestibular impairment (VI); 1 participant diagnosed with MdDS. Postural control was assessed using a force plate (AMTI, Accusway). Participants were assessed following the modified Clinical Test Sensory Integration Balance protocol (mCTSIB, eyes open on firm surface/eyes closed on firm surface/eyes open on foam/eyes closed on foam). The raw data were exported and analyzed in a custom-made Matlab script (Matlab R2020a). We retrieved the center of pressure velocity in both anterior-posterior and mediolateral directions and performed an analysis of the frequency content using Daubechies wavelet of order 4 with 6 levels of decomposition. Protocol VI and MdDS patients performed a 4-week VR program. Postural control, using a force plate, and Dizziness Handicap Inventory (DHI) were assessed before and after the VR program. Healthy control was assessed twice separated by 1 week without any specific intervention.</p><p><strong>Results: </strong>VI participant showed clear improvement on DHI and sway velocity on condition eyes closed with foam. Accordingly, a reduction of energy content within frequency bands (0.39-0.78 Hz and 0.78-1.56 Hz) was observed post-rehabilitation for VI participant in both conditions with foam. Interestingly, MdDS participant demonstrated a reduction in sway velocity in most of the conditions but the frequency content was not modified by VR and was comparable to healthy control. Accordingly, the DHI of the MdDS participant failed to demonstrate any difference following VR.</p><p><strong>Conclusion: </strong>The results of the present study question the use of VR as an efficient treatment option for MdDS. Future studies must recruit a larger sample size and focus on the relationship between illusion of movement and postural characteristics such as sway velocity.</p>","PeriodicalId":55432,"journal":{"name":"Audiology and Neuro-Otology","volume":" ","pages":"107-113"},"PeriodicalIF":1.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41220900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}