1
|
Huston LA, Husain TS, Moore JC, Organ JM, Menegaz RA, Handler EK, Gonzales LA. Morphological variability in the inner ear of mice with osteogenesis imperfecta. Anat Rec (Hoboken) 2024; 307:592-599. [PMID: 37515586 DOI: 10.1002/ar.25298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/31/2023]
Abstract
Osteogenesis imperfecta (OI) is known to cause hearing loss in ~60% of the affected human population. While OI-related pathologies have been studied in the middle ear, the development of cochlear pathologies is less well understood. In this study, we examine OI-related pathologies of the cochlea in a mouse model of OI to (1) document variation between OI and unaffected mice, and (2) assess the intrusion of the otic capsule onto the cochlea by analyzing differences in duct volumes. Juvenile and adult OIM C57BL/6mice were compared to unaffected wildtype (WT) mice using three-dimensional models of the cochlea generated from high resolution micro-CT scans. Two-tailed Mann-Whitney U tests were then used to investigate duct volume differences both within and between the OI and WT samples. Areas of higher ossification were observed at the cochlear base in the OI sample. OI mice also had significant intraindividual differences in duct volume between right and left ears (4%-15%), an effect not observed in WT mice. WT and OI duct volumes showed a large degree of overlap, although the OIM volumes were more variable. Our findings indicate that OIM mice are likely to exhibit more asymmetry and variation in cochlear volume despite minor differences in sample cochlear volumes, possibly due to bony capsule intrusion. This suggests a potential mechanism of hearing loss, and a high potential for cochlear and otic capsule alteration in OIM mice.
Collapse
Affiliation(s)
- Lila A Huston
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
- University of the Incarnate Word School of Medicine, San Antonio, Texas, USA
| | - Tooba S Husain
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Arkansas College of Osteopathic Medicine, Chad, Arkansas, USA
| | - Jacob C Moore
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
- Edward Via College of Osteopathic Medicine, Monroe, Louisiana, USA
| | - Jason M Organ
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Rachel A Menegaz
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Emma K Handler
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, Iowa, USA
| | - Lauren A Gonzales
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| |
Collapse
|
2
|
Krajnak K, Warren C, Xu X, Chapman P, Waugh S, Boots T, Welcome D, Dong R. Applied Force Alters Sensorineural and Peripheral Vascular Function in a Rat Model of Hand-Arm Vibration Syndrome. J Occup Environ Med 2024; 66:93-104. [PMID: 37903602 PMCID: PMC10921367 DOI: 10.1097/jom.0000000000002998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
OBJECTIVE This study described the effects of applied force (grip) on vascular and sensorineural function in an animal model of hand-arm vibration syndrome (HAVS). METHODS Rat tails were exposed to 0, 2, or 4 N of applied force 4 hr/d for 10 days. Blood flow and sensitivity to transcutaneous electrical stimulation and pressure were measured. RESULTS Applied force increased blood flow but reduced measures of arterial plasticity. Animals exposed to force tended to be more sensitive to 250-Hz electrical stimulation and pressure applied to the tail. CONCLUSIONS Effects of applied force on blood flow and sensation are different than those of vibration. Studies examining co-exposures to force and vibration will provide data that can be used to determine how these factors affect risk of workers developing vascular and sensorineural dysfunction (ie, HAVS).
Collapse
Affiliation(s)
- Kristine Krajnak
- From the Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia
| | | | | | | | | | | | | | | |
Collapse
|
3
|
Guthrie OW. Noise Stress Abrogates Structure-Specific Endonucleases within the Mammalian Inner Ear. Int J Mol Sci 2024; 25:1749. [PMID: 38339024 PMCID: PMC10855171 DOI: 10.3390/ijms25031749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Nucleotide excision repair (NER) is a multistep biochemical process that maintains the integrity of the genome. Unlike other mechanisms that maintain genomic integrity, NER is distinguished by two irreversible nucleolytic events that are executed by the xeroderma pigmentosum group G (XPG) and xeroderma pigmentosum group F (XPF) structure-specific endonucleases. Beyond nucleolysis, XPG and XPF regulate the overall efficiency of NER through various protein-protein interactions. The current experiments evaluated whether an environmental stressor could negatively affect the expression of Xpg (Ercc5: excision repair cross-complementing 5) or Xpf (Ercc4: excision repair cross-complementing 4) in the mammalian cochlea. Ubiquitous background noise was used as an environmental stressor. Gene expression levels for Xpg and Xpf were quantified from the cochlear neurosensory epithelium after noise exposure. Further, nonlinear cochlear signal processing was investigated as a functional consequence of changes in endonuclease expression levels. Exposure to stressful background noise abrogated the expression of both Xpg and Xpf, and these effects were associated with pathological nonlinear signal processing from receptor cells within the mammalian inner ear. Given that exposure to environmental sounds (noise, music, etc.) is ubiquitous in daily life, sound-induced limitations to structure-specific endonucleases might represent an overlooked genomic threat.
Collapse
Affiliation(s)
- O'neil W Guthrie
- Cell & Molecular Pathology Laboratory, Department of Communication Sciences and Disorders, Northern Arizona University, Flagstaff, AZ 86011, USA
| |
Collapse
|
4
|
Rogha M, Moshtaghi E. The Effect of Rivaroxaban in the Complementary Therapy of Sudden Sensorineural Hearing Loss. Adv Biomed Res 2024; 13:1. [PMID: 38525395 PMCID: PMC10958720 DOI: 10.4103/abr.abr_143_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 03/26/2024] Open
Abstract
Background Due to the importance of sudden sensorineural hearing loss (SSNHL) and the possible role of blood coagulation in its mechanism and the likely therapeutic effect of anticoagulants and also the lack of studies in this field, this study aimed to evaluate the effect of rivaroxaban (RXA) in the treatment of this disease. Materials and Methods The present double-blind randomized clinical trial study was performed on 34 patients with SSNHL. Patients were randomly divided into two groups. In the first group, in addition to corticosteroid therapy (CST), RXA 10 mg tablets were used daily for 10 days (RXA group), and in the second group, only CST (CST group) treatment was prescribed. Hearing recovery was then assessed and recorded according to the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) criteria. Results This study showed that the grade of hearing recovery in the RXA group (58.8%) was higher than the CST group (47.1%), but this difference was not significant (P value >0.05). Also, RXA treatment increased the odds of hearing recovery, and this difference was not statistically significant (odd ratio (95% confidence interval)(OR (95% CI): 2.327 (0.180-18.082); P value = 0.518). In contrast, delay to treatment, more increased PTA (pure tone average (PTA)), and having vertigo reduced the odds of hearing recovery by 0.138-, 0.019-, and 0.069-fold, respectively (P value <0.05). Conclusion According to the results of this study, although the percentage of hearing recovery was higher in the RXA group, in general, the results of the two treatments were not significantly different.
Collapse
Affiliation(s)
- Mehrdad Rogha
- Department of Otorhinolaryngology, Head and Neck Surgery, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ehsan Moshtaghi
- Department of Otolaryngology, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
5
|
Hillam K, Suarez D, Nielson C, Traxler A, Sommer E, Winslow A, Holley A, Huang E, Hughes M, Firpo MA, Rower J, Park AH. Hearing Following Prolonged and Delayed Ganciclovir Treatment in a Murine Cytomegalovirus Model. Laryngoscope 2024; 134:433-438. [PMID: 37421238 DOI: 10.1002/lary.30860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/20/2023] [Accepted: 06/14/2023] [Indexed: 07/10/2023]
Abstract
OBJECTIVE Compare hearing outcomes utilizing standard, prolonged and delayed ganciclovir (GCV) therapy in a murine model of cytomegalovirus (CMV). METHODS BALB/c mice were inoculated with mouse cytomegalovirus (mCMV) or saline via intracerebral injection on postnatal day 3 (p3). Intraperitoneal GCV or saline was administered at 12 h intervals for the duration of the standard (p3-p17), delayed (p30-p44), or prolonged treatment windows (p3-p31). Auditory thresholds were assessed using distortion product otoacoustic emission (DPOAE) and auditory brainstem response (ABR) testing at 4, 6, and 8 weeks of age. Blood and tissue samples were harvested from mice on p17 and p37 one hour after GCV administration, and their concentrations were assessed via liquid chromatography-mass spectrometry. RESULTS A delayed course of GCV improved ABR but not DPOAE thresholds in mCMV-infected mice. A prolonged course of GCV did not provide better hearing thresholds than those administered standard treatment. The average GCV concentration in all 17-day-old mice tissue was significantly higher than those in older 37-day-old mice. CONCLUSION Delayed GCV treatment provided a hearing benefit on ABR over untreated mCMV infected mice. Prolonged CGV administration showed no benefit compared to a shorter duration GCV treatment. GCV drug concentrations both systemically and in the cochlea are much lower in older mice. These results have potential implications for the clinical management of cCMV infected children. LEVEL OF EVIDENCE NA Laryngoscope, 134:433-438, 2024.
Collapse
Affiliation(s)
- Katrina Hillam
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Daniel Suarez
- Department of Otolaryngology, State University of New York Downstate Medical Center, Stony Brook, New York, U.S.A
| | - Christopher Nielson
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Abigail Traxler
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Elizabeth Sommer
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Anna Winslow
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Anna Holley
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Emily Huang
- Johns Hopkins University School of Medicine, Baltimore, Maryland, U.S.A
| | - Maura Hughes
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Matthew A Firpo
- Department of Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| | - Joseph Rower
- University of Utah Center for Human Toxicology and Department of Pharmacology and Toxicology, Salt Lake City, Utah, U.S.A
| | - Albert H Park
- Department of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, Utah, U.S.A
| |
Collapse
|
6
|
Mokhatrish M, Baek W, Nam G, Cho SI. Tinnitus characteristics in patients with idiopathic sudden sensorineural hearing loss and acute tinnitus. Laryngoscope Investig Otolaryngol 2023; 8:1384-1389. [PMID: 37899881 PMCID: PMC10601588 DOI: 10.1002/lio2.1137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/18/2023] [Accepted: 07/31/2023] [Indexed: 10/31/2023] Open
Abstract
Objective Tinnitus is a common symptom of idiopathic sudden sensorineural hearing loss (ISSHL). This study aimed to investigate the characteristics and outcomes of acute tinnitus in patients with ISSHL. Methods A total of 59 patients with ISSHL and acute tinnitus were enrolled. All patients underwent audiological assessment, tinnitus matching for loudness and frequency, and steroid treatment for sudden hearing loss. Tinnitus-related distress was assessed using the tinnitus handicap inventory (THI) questionnaire. The outcomes of hearing recovery and tinnitus remission were investigated retrospectively. Results The loudness and pitch of acute tinnitus were 63.2 ± 22.4 dB HL and 2010.63 ± 2368.99 Hz, respectively. Complete and partial recovery rates of acute tinnitus in ISSHL patients were 32.2% and 39% according to the THI scores. The group with complete recovery of hearing showed significantly greater improvement in tinnitus distress than the group with no improvement in hearing. The loudness and pitch of tinnitus did not correlate with tinnitus remission. Conclusion Hearing recovery is more important for tinnitus remission than the psychoacoustic characteristics of acute tinnitus. Timely identification and proper treatment of hearing loss are important to improve tinnitus remission in patients with ISSHL. Level of Evidence Level 4.
Collapse
Affiliation(s)
- Mohammad Mokhatrish
- Department of Otolaryngology‐Head and Neck SurgeryChosun University College of MedicineGwangjuSouth Korea
- Department of Otolaryngology‐Head and Neck Surgery, College of MedicinePrince Sattam Bin Abdulaziz UniversityAl‐KharjSaudi Arabia
| | - Wonyong Baek
- Department of Otolaryngology‐Head and Neck SurgeryChosun University College of MedicineGwangjuSouth Korea
| | - Gi‐Sung Nam
- Department of Otolaryngology‐Head and Neck SurgeryChosun University College of MedicineGwangjuSouth Korea
| | - Sung Il Cho
- Department of Otolaryngology‐Head and Neck SurgeryChosun University College of MedicineGwangjuSouth Korea
| |
Collapse
|
7
|
Sumalde AAM, Yang IV, Yarza TKL, Tobias-Grasso CAM, Tantoco MLC, Davidson E, Chan AL, Azamian MS, Cruz TLG, Lalani SR, Reyes-Quintos MRT, Cutiongco-de la Paz EM, Santos-Cortez RLP, Chiong CM. Lack of Methylation Changes in GJB2 and RB1 Non-coding Regions of Cochlear Implant Patients with Sensorineural Hearing Loss. Acta Med Philipp 2023; 57:116-120. [PMID: 37990697 PMCID: PMC10662870 DOI: 10.47895/amp.v57i9.5200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Objective Recent advances in epigenetic studies continue to reveal novel mechanisms of gene regulation and control, however little is known on the role of epigenetics in sensorineural hearing loss (SNHL) in humans. We aimed to investigate the methylation patterns of two regions, one in RB1 and another in GJB2 in Filipino patients with SNHL compared to hearing control individuals. Methods We investigated an RB1 promoter region that was previously identified as differentially methylated in children with SNHL and lead exposure. Additionally, we investigated a sequence in an enhancer-like region within GJB2 that contains four CpGs in close proximity. Bisulfite conversion was performed on salivary DNA samples from 15 children with SNHL and 45 unrelated ethnically-matched individuals. We then performed methylation-specific real-time PCR analysis (qMSP) using TaqMan® probes to determine percentage methylation of the two regions. Results Using qMSP, both our cases and controls had zero methylation at the targeted GJB2 and RB1 regions. Conclusion Our study showed no changes in methylation at the selected CpG regions in RB1 and GJB2 in the two comparison groups with or without SNHL. This may be due to a lack of environmental exposures to these target regions. Other epigenetic marks may be present around these regions as well as those of other HL-associated genes.
Collapse
Affiliation(s)
- Angelo Augusto M. Sumalde
- College of Medicine, University of the Philippines Manila, Manila, Philippines
- Department of Otolaryngology – Head and Neck Surgery, School of Medicine, University of Colorado Anschutz Medical Campus (CU-AMC), Aurora, Colorado, USA
- Department of Otolaryngology-Head and Neck Surgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Ivana V. Yang
- Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus (CU-AMC), Aurora, Colorado, USA
| | - Talitha Karisse L. Yarza
- Philippine National Ear Institute, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
- Newborn Hearing Screening Reference Center, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
| | | | - Ma. Leah C. Tantoco
- Department of Otolaryngology-Head and Neck Surgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
- Philippine National Ear Institute, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
- Newborn Hearing Screening Reference Center, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
| | - Elizabeth Davidson
- Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus (CU-AMC), Aurora, Colorado, USA
| | - Abner L. Chan
- College of Medicine, University of the Philippines Manila, Manila, Philippines
- Department of Otolaryngology-Head and Neck Surgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Mahshid S. Azamian
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Teresa Luisa G. Cruz
- College of Medicine, University of the Philippines Manila, Manila, Philippines
- Department of Otolaryngology-Head and Neck Surgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Seema R. Lalani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Maria Rina T. Reyes-Quintos
- Department of Otolaryngology-Head and Neck Surgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
- Philippine National Ear Institute, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
- Newborn Hearing Screening Reference Center, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
| | - Eva Maria Cutiongco-de la Paz
- National Institutes of Health, University of the Philippines Manila, Manila, Philippines
- Philippine Genome Center, UP Diliman Campus, Quezon City, Philippines
| | - Regie Lyn P. Santos-Cortez
- Department of Otolaryngology – Head and Neck Surgery, School of Medicine, University of Colorado Anschutz Medical Campus (CU-AMC), Aurora, Colorado, USA
| | - Charlotte M. Chiong
- College of Medicine, University of the Philippines Manila, Manila, Philippines
- Department of Otolaryngology-Head and Neck Surgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
- Philippine National Ear Institute, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
- Newborn Hearing Screening Reference Center, National Institutes of Health, University of the Philippines Manila, Manila, Philippines
| |
Collapse
|
8
|
Laakso M, Lipsanen J, Pajo K, Salmenlinna I, Aaltonen T, Ruusuvuori J, Aarnisalo A. Working-age first-time hearing aid users' self-reported outcomes. Int J Audiol 2023; 62:877-885. [PMID: 35994622 DOI: 10.1080/14992027.2022.2106454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study patient-reported hearing aid (HA) rehabilitation outcomes, social-communicative functioning, and expectations/experiences during eight months of HA use. DESIGN Three self-reporting instruments, the International Outcome Inventory for Hearing Aids (IOI-HA), the Quantified Denver Scale of Communicative Function (QDS), and questionnaires tapping pre-rehabilitation expectations (HA-EXP-Q1) and post-rehabilitation experiences (HA-EXP-Q2) were administered. STUDY SAMPLE 144 patients ages 23-66 with gradually acquired, adult-onset, mild-to-moderate sensorineural hearing loss affecting both ears who acquired their first HAs. RESULTS According to self-reports, HA rehabilitation outcomes were good, and everyday social-communicative functioning improved after one month and after eight months of HA use. When the effects from demographic and audiological variables were analysed, younger age and positive expectations of HAs were associated with better outcomes and social-communicative functioning. The form or hearing loss severity, and the type or number of HAs did not affect outcomes. CONCLUSION Working-age HA users reported better HA outcomes than older adults in previous studies. Coping in work life may be a strong motivator for active HA use. Considering that younger age and positive expectations resulted in better outcomes, early rehabilitation that supports positive and realistic expectations of HA performance is essential.
Collapse
Affiliation(s)
- Minna Laakso
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Jari Lipsanen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Kati Pajo
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
- Department of Audiology, Helsinki University Central Hospital, Helsinki, Finland
| | - Inkeri Salmenlinna
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Tarja Aaltonen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Johanna Ruusuvuori
- Faculty of Social Sciences, Unit of Social Research, Tampere University, Tampere, Finland
| | - Antti Aarnisalo
- Department of Audiology, Helsinki University Central Hospital, Helsinki, Finland
| |
Collapse
|
9
|
Suarez D, Nielson C, McVicar SB, Sidesinger M, Ostrander B, O'Brien E, Ampofo K, Ling CY, Miner LJ, Park AH. Analysis of an Expanded Targeted Early Cytomegalovirus Testing Program. Otolaryngol Head Neck Surg 2023; 169:679-686. [PMID: 36884018 DOI: 10.1002/ohn.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/03/2023] [Accepted: 01/27/2023] [Indexed: 03/09/2023]
Abstract
OBJECTIVE Determine the detection rate from an expanded targeted early cytomegalovirus (CMV) testing program implemented from a large healthcare system (Intermountain Healthcare, IHC). STUDY DESIGN Retrospective review. SETTING Tertiary medical center. METHODS An electronic system was modified to include indications for testing whenever a provider placed an order for CMV testing. A retrospective analysis of this database was performed. RESULTS From March 1, 2021 to August 31, 2022, there were 3450 (8.8%) patients who underwent CMV testing out of 39,245 total live births within the IHC system. Since the formal implementation of this program in 2019, annual CMV testing has increased almost 10-fold: 2668 CMV tests were performed in 2021 compared to 289 CMV tests in 2015. The most frequent indication for congenital CMV (cCMV) testing was small for gestational age (SGA) (68.2%), followed by macrocephaly (13.5%), an abnormal hearing test (5.0%), and microcephaly (4.4%). Fourteen cCMV-infected infants were diagnosed all of them meeting the criteria for symptomatic cCMV. The most common indication resulting in a positive diagnosis was those who presented with SGA (n = 10 patients). The positivity rate would result in a prevalence of 35.7 symptomatic cCMV cases diagnosed per 100,000 live births, numbers comparable to those expected for universal cCMV screening. CONCLUSION An expanded targeted early cCMV testing program may improve detection rates of symptomatic cCMV cases and should be considered as a feasible alternative approach to universal or hearing-targeted early CMV testing.
Collapse
Affiliation(s)
- Daniel Suarez
- Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Christopher Nielson
- Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | | | - Max Sidesinger
- Utah Department of Health and Human Services, Salt Lake City, Utah, USA
| | - Betsy Ostrander
- Department of Pediatrics, Division of Pediatric Neurology and Intermountain Healthcare, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Elizabeth O'Brien
- Department of Pediatrics, Division of Neonatology and Intermountain Healthcare, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Krow Ampofo
- Department of Pediatrics, Division of Pediatric Infectious Disease, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Con Y Ling
- Department of Pediatrics, Division of Neonatology and Intermountain Healthcare, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Lonnie J Miner
- Department of Pediatrics, Division of Neonatology and Intermountain Healthcare, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Albert H Park
- Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, Utah, USA
| |
Collapse
|
10
|
D DD, Patil GC. Cross-Sectional Study to Estimate the Prevalence of Inner-Ear Anomalies in Children With Congenital Sensorineural Hearing Loss by High-Resolution Computed Tomography (HRCT) Temporal Bone Scan. Cureus 2023; 15:e42160. [PMID: 37602054 PMCID: PMC10439020 DOI: 10.7759/cureus.42160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Background Congenital sensorineural hearing loss (SNHL) is one of the most common birth defects with an incidence ratio of 1:1000 live births in India. Imaging plays an important role in the evaluation of congenital SNHL. As there is a paucity of studies in the Indian setting to determine the prevalence of inner-ear abnormalities, this study attempts to throw light on the various inner-ear anomalies that are prevalent in our setup in the Northern part of Karnataka using high-resolution computed tomography (HRCT) temporal bone scan. Objectives The objectives of this study are estimation of the prevalence of inner-ear anomalies in children with congenital SNHL by employing a radiologic assessment of HRCT temporal bone scans and determination of the factors associated with the identification of these abnormalities like demographic factors and degree of hearing loss. Methods Children with congenital SNHL underwent clinical evaluation with history taking and general and ear examination. Otoacoustic emission (OAE) and brainstem evoked response audiometry (BERA) measurements were obtained. A radiological assessment by HRCT temporal bone scan was done. Using the classification criteria of inner-ear malformations by Jackler and Sennaroglu as a reference, diagnostic standards were established in studying inner-ear malformations. Data were collected and entered in a Performa, which includes patient's demography, audiological findings, and radiological findings, and the results were analyzed. Data were entered into Microsoft Excel, and statistical analysis was carried out using IBM SPSS Statistics for Windows, Version 27 (Released 2020; IBM Corp., Armonk, New York, United States). Categorical variables were presented as frequency and percentage. Then the prevalence of inner-ear anomaly was estimated. Correlation between inner-ear anomaly and other factors was calculated using the Chi-square test. Results The prevalence of inner-ear anomalies identified in congenital SNHL by HRCT scan was as follows: 26.08% (12/46), 26.1% (24/92) of inner ears was anomalous, 23.9% of the cochlea was anomalous, 6.5% of the vestibule was anomalous, 5.4% of the vestibular aqueduct was anomalous, and 3.2% of the semicircular canal was anomalous. Cochlear aplasia, incomplete partition, common cavity, and cochlear hypoplasia were the anomalies found. Few cochleas had an abnormal cochlear height, though they appeared normal structurally. The dilated vestibule was the most common vestibular abnormality. There was a negative association found between the inner-ear anomaly in children with congenital SNHL who had a history of consanguineous marriage in their parents. Conclusion High-resolution temporal CT scanning could provide detailed information on the pathology of the inner ear in congenital SNHL, which can help in better planning the surgery for cochlear implantation and understanding the prognosis.
Collapse
Affiliation(s)
- Deeksha D D
- Otolaryngology-Head and Neck Surgery, Karnataka Institute of Medical Sciences, Hubballi, IND
| | - G C Patil
- Radiology, Karnataka Institute of Medical Sciences, Hubballi, IND
| |
Collapse
|
11
|
Kawakita M, Iwasaki S, Moteki H, Nishio SY, Kosho T, Usami SI. Otological Features of Patients with Musculocontractural Ehlers-Danlos Syndrome Caused by Pathogenic Variants in CHST14 (mcEDS- CHST14). Genes (Basel) 2023; 14:1350. [PMID: 37510254 PMCID: PMC10379827 DOI: 10.3390/genes14071350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Musculocontractural Ehlers-Danlos syndrome (EDS) caused by pathogenic variants in CHST14 (mcEDS-CHST14) is a subtype of EDS characterized by multisystem malformations and progressive fragility-related manifestations. A recent international collaborative study showed that 55% of mcEDS-CHST14 patients had hearing loss (HL), more commonly of the high-frequency type. Here, we report the first systemic investigation of the otological features of patients with this disorder based on the world's largest cohort at Shinshu University Hospital. Nine patients [18 ears; four male and five female patients; mean age, 18 years old (range, 10-28)] underwent comprehensive otological evaluation: audiogram, distortion product otoacoustic emission (DPOAE) test, and tympanometry. The audiogram, available in all 18 ears, showed HL in eight patients (8/9, 89%) and in 14 ears (14/18, 78%): bilateral in six patients (6/9, 67%) and unilateral in two (2/9, 22%); mild in eight ears (8/18, 44%) and moderate in six (6/18, 33%); and high-frequency HL in five (5/18, 28%) and low-frequency HL in five (5/18, 28%). An air-bone gap was detected in one ear (1/18, 6%). DPOAE was available in 13 ears, with the presence of a response in five (5/13, 38%) and the absence in eight (8/13, 62%), including in three ears of normal hearing. Tympanometry results were available in 12 ears: Ad type in nine (9/12, 75%) and As type in one (1/12, 8.3%). Patients with mcEDS-CHST14 had a high prevalence of HL, typically sensorineural and bilateral, with mild to moderate severity, of high-frequency or low-frequency type, and sometimes with no DPOAE response. The pathophysiology underlying HL might be complex, presumably related to alterations of the tectorial membrane and/or the basilar membrane of Corti associated with disorganized collagen fibril networks. Regular and careful check-ups of hearing using multiple modalities are recommended for mcEDS-CHST14 patients.
Collapse
Affiliation(s)
| | - Satoshi Iwasaki
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto 390-8621, Japan; (S.I.); (H.M.); (S.-y.N.); (S.-i.U.)
- Department of Otolaryngology, International University of Health and Welfare, Mita Hospital, Tokyo 108-8329, Japan
| | - Hideaki Moteki
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto 390-8621, Japan; (S.I.); (H.M.); (S.-y.N.); (S.-i.U.)
- Department of Otolaryngology, Aizawa Hospital, Matsumoto 390-8621, Japan
| | - Shin-ya Nishio
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto 390-8621, Japan; (S.I.); (H.M.); (S.-y.N.); (S.-i.U.)
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto 390-8621, Japan
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto 390-8621, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto 390-8621, Japan
- Research Center for Supports to Advanced Science, Shinshu University, Matsumoto 390-8621, Japan
| | - Shin-ichi Usami
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto 390-8621, Japan; (S.I.); (H.M.); (S.-y.N.); (S.-i.U.)
| |
Collapse
|
12
|
Paul M, Abdullah A, Hashim ND, Ismail NFM, Shah SA. Malay Version of Nijmegen Cochlear Implant Questionnaire and Quality of Life of Patients with Post-lingual Deafness. Medeni Med J 2023; 38:128-139. [PMID: 37338914 DOI: 10.4274/mmj.galenos.2023.60980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023] Open
Abstract
Objective The Nijmegen Cochlear Implant questionnaire (NCIQ) was used to gauge the quality of life (QOL) improvement among cochlear implant (CI) users who suffered from post-lingual deafness. This study aimed to determine the consistency and reliability of the Malay version of the Nijmegen Cochlear Implant questionnaire (NCIQ-M) and to report the QOL of patients using NCIQ-M. Methods This study has two phases: Phase I involves the translation of the NCIQ from English to Malay, followed by internal consistency and test-retest reliability assessment of the final version of NCIQ-M. Phase II involves QOL assessment of post-lingual deafness using NCIQ-M. Results Twenty CI users and 20 non-CI users answered the NCIQ-M. Test-retest reliability analysis of the NCIQ-M was performed using an intraclass correlation coefficient, achieving scores of more than 0.85. Internal consistency was analysed with Cronbach α of more than 0.70 in all subdomains. Scores between the two groups of subjects were analyzed using an independent sample t-test. Good internal consistency, intraclass correlation, and test-retest reliability were obtained. Scores in all six subdomains of the NCIQ-M are significantly higher in the CI user group than in the non-CI user group. Conclusions The NCIQ-M is a consistent and reliable subjective questionnaire to determine the QOL of CI users concerning physical, psychological, and social functioning.
Collapse
Affiliation(s)
- Mark Paul
- Hospital Sultanah Aminah Johor Bharu, Jalan Persiaran Abu Bakar Sultan, Department of Otorhinolaryngology Head and Neck Surgery, Johor Bharu, Malaysia
| | - Asma Abdullah
- Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Department of Otorhinolaryngology, Kuala Lumpur, Malaysia
| | - Noor Dina Hashim
- Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Department of Otorhinolaryngology, Kuala Lumpur, Malaysia
| | - Nur Fadhilah Megat Ismail
- Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Department of Otorhinolaryngology, Kuala Lumpur, Malaysia
| | - Shamsul Azhar Shah
- Pusat Perubatan Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Department of Community Health, Kuala Lumpur, Malaysia
| |
Collapse
|
13
|
Lee YH, Tsai CY, Lu YS, Lin PH, Chiang YT, Yang TH, Hsu JSJ, Hsu CJ, Chen PL, Liu TC, Wu CC. Revisiting Genetic Epidemiology with a Refined Targeted Gene Panel for Hereditary Hearing Impairment in the Taiwanese Population. Genes (Basel) 2023; 14:genes14040880. [PMID: 37107638 PMCID: PMC10137978 DOI: 10.3390/genes14040880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Hearing impairment is one of the most common sensory disorders in children, and targeted next-generation sequencing (NGS)-based genetic examinations can assist in its prognostication and management. In 2020, we developed a simplified 30-gene NGS panel from the original 214-gene NGS version based on Taiwanese genetic epidemiology data to increase the accessibility of NGS-based examinations. In this study, we evaluated the diagnostic performance of the 30-gene NGS panel and compared it with that of the original 214-gene NGS panel in patient subgroups with different clinical features. Data on the clinical features, genetic etiologies, audiological profiles, and outcomes were collected from 350 patients who underwent NGS-based genetic examinations for idiopathic bilateral sensorineural hearing impairment between 2020 and 2022. The overall diagnostic yield was 52%, with slight differences in genetic etiology between patients with different degrees of hearing impairment and ages of onset. No significant difference was found in the diagnostic yields between the two panels, regardless of clinical features, except for a lower detection rate of the 30-gene panel in the late-onset group. For patients with negative genetic results, where the causative variant is undetectable on current NGS-based methods, part of the negative results may be due to genes not covered by the panel or yet to be identified. In such cases, the hearing prognosis varies and may decline over time, necessitating appropriate follow-up and consultation. In conclusion, genetic etiologies can serve as references for refining targeted NGS panels with satisfactory diagnostic performance.
Collapse
Affiliation(s)
- Yen-Hui Lee
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - Cheng-Yu Tsai
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Graduate Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei 10055, Taiwan
| | - Yue-Sheng Lu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - Pei-Hsuan Lin
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - Yu-Ting Chiang
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Graduate Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei 10055, Taiwan
| | - Ting-Hua Yang
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - Jacob Shu-Jui Hsu
- Graduate Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei 10055, Taiwan
| | - Chuan-Jen Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Department of Otolaryngology, Buddhist Tzuchi General Hospital, Taichung Branch, Taichung 42743, Taiwan
| | - Pei-Lung Chen
- Graduate Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei 10055, Taiwan
- Department of Medical Genetics, National Taiwan University Hospital, Taipei 10041, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Tien-Chen Liu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Department of Otolaryngology, National Taiwan University College of Medicine, Taipei 10002, Taiwan
| | - Chen-Chi Wu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei 10002, Taiwan
- Department of Otolaryngology, National Taiwan University College of Medicine, Taipei 10002, Taiwan
- Department of Medical Research, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 30261, Taiwan
| |
Collapse
|
14
|
Daulay ER, Munir D, Lelo A, Putranto TA, Icksan AG, Haryuna TSH, Eyanoer PC, Tobing TCL. The Effect of the Intra-Arterial Heparin Flushing (IAHF) Procedure on Hearing Threshold in Sensorineural Hearing Loss Patients. Med Arch 2023; 77:218-221. [PMID: 37700919 PMCID: PMC10495158 DOI: 10.5455/medarh.2023.77.218-221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 05/18/2023] [Indexed: 09/14/2023] Open
Abstract
Background Sensorineural hearing loss (SNHL) is a frequent problem in Indonesia but its treatment is still limited. This type of hearing loss is related to oxidative stress and decreased vascularization, which can damage the hair cell. The intra-arterial heparin flushing (IAHF) is a procedure that can recover circulation and its agent, namely heparin, also has antioxidant activity. Therefore, the IAHF procedure has the potential to improve hearing function and can be considered an alternative therapy for SNHL. Objective The study evaluates the effect of the IAHF on hearing improvement based on the difference in hearing threshold values before and after the procedure. Methods This experimental study used a Pretest-Posttest One-Group Only design. A total of 17 patients with sensorineural hearing loss who met inclusion and exclusion criteria were subjected to pure tone audiometry tests before and 4 hours after the IAHF procedure. The mean difference in hearing threshold was analyzed using paired Students t-test for normally distributed data and Wilcoxon for non-normally distributed data. Results There was a decrease in the means of hearing threshold in the right and left ear 4 hours after the IAHF procedure. However, based on the paired Students t-test, there was not a significant difference in hearing threshold before and after the procedure (p-value > 0.05). Conclusion There was hearing threshold improvement 4 hours after the IAHF procedure. This study showed that the IAHF procedure can have a therapeutic effect on sensorineural hearing loss patients.
Collapse
Affiliation(s)
- Elvita Rahmi Daulay
- Philosophy Doctor in Medicine Program, Faculty of Medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia
| | - Delfitri Munir
- Department of Ear, Nose and Throat, Head and Neck, Faculty of Medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia
| | - Aznan Lelo
- Department of Pharmacology & Therapeutic, Faculty of Medicine, Universitas Sumatera, Utara, Medan, Sumatera Utara, Indonesia
| | | | - Aziza Ghanie Icksan
- Department of Radiology, Persahabatan Hospital, Jalan Persahabatan, Rawamangun, Jakarta, Indonesia
| | - Tengku Siti Hajar Haryuna
- Department of Ear, Nose and Throat, Head and Neck, Faculty of Medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia
| | - Putri C. Eyanoer
- Department of Community Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia
| | - Tina Christina L Tobing
- Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia
| |
Collapse
|
15
|
Rahimi Z, Saki N, Cheraghian B, Amini P, Solaymani Dodaran M. Association between individual, household, and area-level socioeconomic status indicators and sensorineural hearing loss in adults in southwest Iran: a population-based study. Front Public Health 2023; 11:1140500. [PMID: 37139397 PMCID: PMC10150087 DOI: 10.3389/fpubh.2023.1140500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Introduction Hearing loss is the fourth most common chronic disease, but studies on the relationship between hearing loss and socioeconomic factors are limited. We aimed to examine the association between hearing loss and socioeconomic factors among 35-70 year adults in southwest Iran. Materials and methods This population-based cross-sectional study was conducted in the baseline of Hoveyzeh cohort study in adults aged 35-70 in southwest Iran between 2017 and 2021. Information on socioeconomic factors, demographic characteristics, comorbidities, family history of hearing loss, and noise exposure was collected. We assessed the relationship between three levels of socioeconomic factors (individual, household, and area level) with sensorineural hearing loss (SNHL). Multiple logistic regression was used to adjust the potential confounders. Results Among a total of 1,365 assessed participants, 485 patients were diagnosed as having hearing loss, and the other 880 individuals were diagnosed without hearing loss, which is considered the case and the control group, respectively. At the individual level of socioeconomic, the odds of having hearing loss in the participants with high school education and diploma, [OR = 0.51 (95%CI:0.28-0.92)], and the individuals with university education [OR = 0.44 (95%CI:0.22-0.87)] were significantly lower than the illiterate participants. At the household socioeconomic level, the odds of having hearing loss were lower for those with poor [OR = 0.63 (95%CI:0.41-0.97)] and moderate [OR = 0.62 (95%CI:0.41-0.94)] wealth status vs. those with the poorest wealth status. In the area level socioeconomic, although the odds of hearing loss in the residents of affluent areas were slightly lower than the residents of deprived areas, there was no significant difference among the groups. Conclusion The individuals with hearing loss may have insufficient education and income.
Collapse
Affiliation(s)
- Zahra Rahimi
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Nader Saki
- Hearing Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Otolaryngology–Head & Neck Surgery, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Bahman Cheraghian
- Hearing Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Biostatistics and Epidemiology, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Payam Amini
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Masoud Solaymani Dodaran
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- *Correspondence: Masoud Solaymani Dodaran
| |
Collapse
|
16
|
Ekobena P, Rothuizen LE, Bedussi F, Guilcher P, Meylan S, Ceschi A, Girardin F, Dao K. Four cases of audio-vestibular disorders related to immunisation with SARS-CoV-2 mRNA vaccines. Int J Audiol 2022:1-5. [PMID: 35510657 DOI: 10.1080/14992027.2022.2056721] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To gain medical insight into the clinical course and safety of otolaryngologic disorders following immunisation with severe acute respiratory coronavirus (SARS-CoV-2) mRNA-based vaccines. DESIGN Case description. STUDY SAMPLE We report four cases of transient audio-vestibular symptoms, which occurred shortly after inoculation of two BNT162b2 (Pfizer-BioNTech®) and mRNA-1273 (Moderna®) vaccines. RESULTS Hearing loss was unilateral in all cases and recovered at least partially: it was associated with persistent gait instability in two cases, after 1 and 7 months. Trigger mechanisms underpinning audio-vestibular impairment remain uncertain. Immune tolerance mechanisms with off-target innate activation of T-lymphocytes may be involved in vestibulocochlear nerve disorders, as for other cranial nerves involvement. CONCLUSIONS The occurrence of audio-vestibular manifestations following mRNA-based vaccines needs ENT monitoring to support their causality in such rare vaccine-related adverse events. Audio-vestibular disorders appeared of transitory nature, including hearing loss, and should not deter further efforts in large-scale vaccination campaigns against SARS-CoV-2.
Collapse
Affiliation(s)
- Pierre Ekobena
- Department of Laboratory Medicine and Pathology, Service of Clinical Pharmacology, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Laura E Rothuizen
- Department of Laboratory Medicine and Pathology, Service of Clinical Pharmacology, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Francesca Bedussi
- Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Pierre Guilcher
- Department of Otorhinolaryngology, Head & Neck Surgery, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Sylvain Meylan
- Department of Medicine, Infectious Diseases Service, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Alessandro Ceschi
- Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - François Girardin
- Department of Laboratory Medicine and Pathology, Service of Clinical Pharmacology, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| | - Kim Dao
- Department of Laboratory Medicine and Pathology, Service of Clinical Pharmacology, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
| |
Collapse
|
17
|
Cushing SL, Purcell PL, Papaiaonnou V, Neghandi J, Daien M, Blaser SI, Ertl-Wagner B, Wagner M, Sheng M, James AL, Bitnun A, Papsin BC, Gordon KA. Hearing Instability in Children with Congenital Cytomegalovirus: Evidence and Neural Consequences. Laryngoscope 2022; 132 Suppl 11:S1-S24. [PMID: 35302239 DOI: 10.1002/lary.30108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 02/05/2022] [Accepted: 03/03/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE/HYPOTHESIS Sensorineural hearing loss (SNHL) is a common sequela of congenital cytomegalovirus (cCMV), potentially exacerbating neurocognitive delay. The objectives of this study were to assess: (1) age at which SNHL in children with cCMV; (2) stimulability of the auditory system in children with cCMV following cochlear implantation (CI); and (3) whether features of magnetic resonance imaging (MRI) potentially are predictive of hearing outcomes. METHODS In this retrospective study of a prospectively acquired cohort, 123 children with cCMV who were referred for hearing loss at a single tertiary referral hospital over 20 years were compared with an unmatched comparative group of 90 children with GJB2-related deafness. Outcome measures were results of newborn hearing screening (NHS), behavioral audiograms, and, in a subgroup of cochlear implant (CI) users, responses from the auditory nerve and brainstem evoked by CI at initial activation, as well as lesional volume of FLAIR-hyperintense signal alterations on MRI. RESULTS All but 3 of 123 children with cCMV had confirmed and persistent SNHL. At birth, 113 children with cCMV underwent NHS, 31 (27%) passed in both ears and 23 (20%) passed in one ear (no NHS data in 10 children). At the first audiologic assessment, 32 of 123 (26%) had normal hearing bilaterally; 35 of 123 (28%) had unilateral SNHL; and 57 of 123 (46%) had bilateral SNHL. More than half (67 of 123, 54%) experienced hearing deterioration in at least one ear. Survival analyses suggested that 60% of children who developed SNHL did so by 2.5 years and 80% by 5 years. In the children who passed NHS in one or both ears, 50% developed hearing loss by 3.5 years in the ear, which passed unilaterally (n = 23 ears), and 50% by 5 years in bilateral passes (n = 62 ears). Hearing loss was significant enough in all but one child with isolated high-frequency loss for rehabilitation to be indicated. Hearing thresholds in individual ears were in the CI range in 83% (102 of 123), although duration of deafness was sufficient to preclude implantation at our center in 13 children with unilateral SNHL. Hearing aids were indicated in 16% (20 of 123). Responses from the auditory nerve and brainstem to initial CI stimulation were similar in children with cCMV-related SNHL compared with GJB2-related SNHL. Characteristic white matter changes on MRI were seen in all children with cCMV-related SNHL (n = 91), but the lesion volume in each cortical hemisphere did not predict degree of SNHL. CONCLUSIONS cCMV-related SNHL is often not detected by NHS but occurs with high prevalence in early childhood. Electrophysiological measures suggest equivalent stimulability of the auditory nerve and brainstem with CI in children with cCMV and GJB2-related SNHL. Hyperintense white matter lesions on FLAIR MRI are consistently present in children with cCMV-related SNHL but cannot be used to predict its time course or degree. Combined, the data show early and rapid deterioration of hearing in children with cCMV-related SNHL with potential for good CI outcomes if SNHL is identified and managed without delay. Findings support universal newborn screening for cCMV followed by careful audiological monitoring. LEVEL OF EVIDENCE 3 Laryngoscope, 2022.
Collapse
Affiliation(s)
- Sharon L Cushing
- Department of Otolaryngology: Head & Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology: Head & Neck Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Archie's Cochlear Implant Laboratory, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Patricia L Purcell
- C.S. Mott Children's Hospital, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Vicky Papaiaonnou
- Department of Otolaryngology: Head & Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology: Head & Neck Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Communication Disorders, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jaina Neghandi
- Archie's Cochlear Implant Laboratory, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Maya Daien
- Archie's Cochlear Implant Laboratory, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Susan I Blaser
- Department of Otolaryngology: Head & Neck Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Department of Diagnostic Imaging, Division of Paediatric Neuroradiology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Birgit Ertl-Wagner
- Department of Diagnostic Imaging, Division of Paediatric Neuroradiology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Matthias Wagner
- Department of Diagnostic Imaging, Division of Paediatric Neuroradiology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Min Sheng
- Department of Diagnostic Imaging, Division of Paediatric Neuroradiology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Adrian L James
- Department of Otolaryngology: Head & Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology: Head & Neck Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ari Bitnun
- Department of Pediatrics (Infectious Diseases), University of Toronto, Toronto, Ontario, Canada
| | - Blake C Papsin
- Department of Otolaryngology: Head & Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology: Head & Neck Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Archie's Cochlear Implant Laboratory, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Karen A Gordon
- Department of Otolaryngology: Head & Neck Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology: Head & Neck Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Archie's Cochlear Implant Laboratory, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Communication Disorders, Hospital for Sick Children, Toronto, Ontario, Canada
| |
Collapse
|
18
|
Li CL, Ma SH, Wu CY, Chang PH, Chang YT, Wu CY. Association Between Sensorineural Hearing Loss and Vitiligo: A Nationwide Population-Based Cohort Study. J Eur Acad Dermatol Venereol 2022; 36:1097-1103. [PMID: 35274365 DOI: 10.1111/jdv.18047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 02/17/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Vitiligo is an acquired depigmentation disease of the skin due to melanocyte destruction. A shared pathogenesis affecting melanocytes in the cochlea has been postulated. However, the association between vitiligo and sensorineural hearing loss (SNHL) is unclear. OBJECTIVE To identify the association between vitiligo and SNHL. METHODS This retrospective, nationwide cohort study included patients with vitiligo and age-, sex-, and comorbidities-matched controls (propensity score matching; 1:4 ratio) from the National Health Insurance Research Database in Taiwan from January 1, 2000 to December 31, 2013. RESULTS In total, 13048 patients with vitiligo and 52192 controls were included. SNHL developed in 0.61% patients with vitiligo and 0.29% controls. After adjusting for sex, age, and comorbidities, a significant association between vitiligo and SNHL was found (adjusted hazard ratio, 2.18; 95% CI, 1.66-2.86). The other risk factors for developing SNHL included increased age, male sex, hyperlipidemia, coronary artery disease, and diffuse connective tissue diseases. In subgroup analysis, the association between vitiligo and SNHL remained significant in almost all the subgroups. CONCLUSION A 2.2-fold increased risk of developing SNHL was found in patients with vitiligo. Proper referral to otologists for early screening and closer follow-up of SNHL should be considered for patients with vitiligo, especially for patients with older age.
Collapse
Affiliation(s)
- Chia-Lun Li
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Sheng-Hsiang Ma
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chun-Ying Wu
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Public Health and Department of Public Health, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Translational Research and Center of Excellence for Cancer Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Public Health, China Medical University, Taichung, Taiwan
| | - Pei-Hsuan Chang
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yun-Ting Chang
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Dermatology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chen-Yi Wu
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Public Health and Department of Public Health, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Dermatology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| |
Collapse
|
19
|
Ryan MT, Riley CA, Tolisano AM. Novel Case of Profound Hearing Loss and Cochlear Implantation From New-Generation Iron Chelation Therapy. OTO Open 2021; 5:2473974X211061408. [PMID: 34870066 PMCID: PMC8637715 DOI: 10.1177/2473974x211061408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/03/2021] [Indexed: 11/17/2022] Open
Affiliation(s)
- Mathew T Ryan
- Department of Otolaryngology-Head and Neck Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Charles A Riley
- Department of Otolaryngology-Head and Neck Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.,Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - Anthony M Tolisano
- Department of Otolaryngology-Head and Neck Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.,Department of Surgery, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| |
Collapse
|
20
|
Chen K, Huang B, Sun J, Liang Y, Xiong G. Cochlear Implantation Outcomes in Children With CDH23 Mutations-Associated Hearing Loss. Otolaryngol Head Neck Surg 2021; 167:560-565. [PMID: 34752165 DOI: 10.1177/01945998211057427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Mutations in the cadherin 23 gene (CDH23) have been reported to cause cochlear damage, but few studies have investigated the auditory and speech outcome of patients after cochlear implantation. Here, we describe the genetic, auditory, and postoperative outcomes of patients with CDH23 mutations who received cochlear implants. STUDY DESIGN Retrospective case review. SETTING Tertiary referral center. METHODS Targeted deafness-related gene panels were sequenced in Chinese families with profound sensorineural hearing loss. The clinical features of subjects carrying potentially pathogenic CDH23 mutations were analyzed. RESULTS Between 2017 and 2019, we identified 5 children with prelinguistically profound hearing loss at our center who harbored 6 variants of CDH23 that segregated with the disease. Of these, 4 variants were novel (c.2591G>T, c.4785G>C, c.5765A>G, and c.9280_9281insTT). All affected individuals had a loss of outer hair cell function, with an average residual hearing level of 3 to 10 dB SPL. Cochlear implantations were arranged for the patients at 11 to 36 months of age. All children made gains in their hearing, language, and speech performances 14 to 120 months after surgery. Their auditory outcomes improved during follow-up intervals. CONCLUSION This study revealed that children with congenital cochlear defects caused by CDH23 variants can acquire an acceptable auditory and speech outcome after cochlear implantation. Early genetic detection and prenatal counseling for rare deafness genes such as CDH23 remain a priority for the future.
Collapse
Affiliation(s)
- Kaitian Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Guangzhou, China
| | - Bixue Huang
- Department of Otorhinolaryngology, the First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Guangzhou, China
| | - Jincangjian Sun
- Department of Otorhinolaryngology, the First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Guangzhou, China
| | - Yue Liang
- Department of Otorhinolaryngology, the First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Guangzhou, China
| | - Guanxia Xiong
- Department of Otorhinolaryngology, the First Affiliated Hospital, Sun Yat-sen University and Institute of Otorhinolaryngology, Guangzhou, China
| |
Collapse
|
21
|
Abstract
Since the declaration of coronavirus disease 2019 (COVID-19) as a pandemic, it remains a widespread infection with a major impact on global resources and health infrastructure. The hallmark of COVID-19 continues to be the well-documented effects it has on the respiratory system. With the passage of time, the involvement of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus in other systems has become more apparent, with the increased incidence of thromboembolic events, cardiac involvement as well as gastrointestinal and neurological symptoms secondary to the infection. Our case report demonstrates a presentation of vertigo, hearing loss, tinnitus, and aural fullness. Our patient was diagnosed as positive for COVID-19 by reverse transcription-polymerase chain reaction (RT-PCR) nine days prior to developing these symptoms. Her COVID-19 infection was otherwise relatively mild, for which she did not seek any medical intervention. A careful assessment ruled out cerebrovascular causes and led us to the diagnosis of SARS-CoV-2-induced labyrinthitis. Our patient was successfully treated as an outpatient without unnecessary investigations and responded well to standard therapy for viral labyrinthitis as per National Health Service (NHS) guidelines. She eventually reported having made a full recovery within three weeks of the initial encounter. Audio-vestibular consequences of COVID-19 are less reported compared to other symptoms of neurological involvement, such as gustatory or olfactory dysfunction, which have become key indicators aiding in the diagnosis of the infection. Among these disorders, the commonly reported presentation is that of vestibular neuronitis. Our case report demonstrates that labyrinthitis is also among the neurological manifestations to be considered as a result of COVID-19, which can be safely managed in the community with the same strategies as those employed for other viral triggers. It also reveals the need for further research into the effects that COVID-19 may have on the audio-vestibular system.
Collapse
Affiliation(s)
- Haider Bokhary
- Emergency Medicine, University Hospital of North Tees, Stockton-on-Tees, GBR
| | | | - S M Rafey Abidi
- Medicine, Services Hospital, Lahore, PAK
- Medicine, Shifa International Hospital, Islamabad, PAK
| |
Collapse
|
22
|
Mahendran GN, Rosenbluth T, Featherstone M, Vivas EX, Mattox DE, Hobson CE. Racial Disparities in Adult Cochlear Implantation. Otolaryngol Head Neck Surg 2021; 166:1099-1105. [PMID: 34311626 DOI: 10.1177/01945998211027340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To compare rates of cochlear implant referral and cochlear implantation across different races and to compare audiometric profiles of these patients. STUDY DESIGN Retrospective study. SETTING Academic tertiary care institution. METHODS Demographic and audiometric data were collected for patients who underwent cochlear implant evaluation or cochlear implantation from 2010 to 2020. RESULTS A total of 504 patients underwent cochlear implant evaluation; 388 met cochlear implant candidacy criteria, and 258 underwent implantation. Of the patients referred for cochlear implant evaluation, 68.5% were White, 18.5% were Black, and 12.3% were Asian, while the institution's primary service area is 46.9% White, 42.3% Black, and 7.7% Asian (P < .001). Black patients referred for cochlear implant evaluation had significantly worse hearing (mean pure-tone average [PTA] 84.5 dB, 26.1% word recognition) than White patients (mean PTA 78.2 dB, P = .005; 35.7% word recognition, P = .015) and Asians patients (mean PTA 77.9 dB, P = .04; 36.5% word recognition, P = .04). Black patients who underwent cochlear implant evaluation also had significantly worse AzBio scores than White patients: 24.5% versus 36.7% (P = .003). There was no significant difference in cochlear implantation rates between Black and White candidates (P = .06). CONCLUSION Black patients undergo cochlear implant evaluation and cochlear implantation at rates disproportionately lower than expected based on local demographics. In addition, Black patients have significantly worse hearing at the time of cochlear implant referral than White and Asian patients. Identifying and increasing awareness of these disparities are essential steps to improving cochlear implant access for potentially disadvantaged populations.
Collapse
Affiliation(s)
| | | | - Miriam Featherstone
- Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Georgia, USA
| | - Esther X Vivas
- Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Georgia, USA
| | - Douglas E Mattox
- Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Georgia, USA
| | - Candace E Hobson
- Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Georgia, USA
| |
Collapse
|
23
|
Chung J, Jung Y, Hur S, Kim JH, Kim SJ, Kim WD, Choung YH, Oh SH. Development and Characterization of a Biomimetic Totally Implantable Artificial Basilar Membrane System. Front Bioeng Biotechnol 2021; 9:693849. [PMID: 34336805 PMCID: PMC8324085 DOI: 10.3389/fbioe.2021.693849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/23/2021] [Indexed: 11/13/2022] Open
Abstract
Cochlear implants (CIs) have become the standard treatment for severe-to-profound sensorineural hearing loss. Conventional CIs have some challenges, such as the use of extracorporeal devices, and high power consumption for frequency analysis. To overcome these, artificial basilar membranes (ABMs) made of piezoelectric materials have been studied. This study aimed to verify the conceptual idea of a totally implantable ABM system. A prototype of the totally implantable system composed of the ABM developed in previous research, an electronic module (EM) for the amplification of electrical output from the ABM, and electrode was developed. We investigated the feasibility of the ABM system and obtained meaningful auditory brainstem responses of deafened guinea pigs by implanting the electrode of the ABM system. Also, an optimal method of coupling the ABM system to the human ossicle for transducing sound waves into electrical signals using the middle ear vibration was studied and the electrical signal output according to the sound stimuli was measured successfully. Although the overall power output from the ABM system is still less than the conventional CIs and further improvements to the ABM system are needed, we found a possibility of the developed ABM system as a totally implantable CIs in the future.
Collapse
Affiliation(s)
- Juyong Chung
- Department of Otolaryngology, Wonkwang University School of Medicine, Iksan, South Korea
| | - Youngdo Jung
- Department of Nature-Inspired System and Application, Korea Institute of Machinery and Materials, Daejeon, South Korea
| | - Shin Hur
- Department of Nature-Inspired System and Application, Korea Institute of Machinery and Materials, Daejeon, South Korea
| | - Jin Ho Kim
- Nano-Bioelectronics & Systems Laboratory, Department of Electrical and Computer Engineering, Seoul National University, Seoul, South Korea
| | - Sung June Kim
- Nano-Bioelectronics & Systems Laboratory, Department of Electrical and Computer Engineering, Seoul National University, Seoul, South Korea
| | - Wan Doo Kim
- Department of Nature-Inspired System and Application, Korea Institute of Machinery and Materials, Daejeon, South Korea
| | - Yun-Hoon Choung
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, South Korea
| | - Seung-Ha Oh
- Department of Otorhinolaryngology, Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul National University College of Medicine, Seoul, South Korea
| |
Collapse
|
24
|
Yang Y, Hood LJ, McPherson B. Association between ABO blood group status and cochlear/neural function: auditory brainstem response findings. Acta Otolaryngol 2021; 141:273-278. [PMID: 33428490 DOI: 10.1080/00016489.2020.1858236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND ABO blood group status may be a risk factor for some diseases, including hearing loss. Individuals with blood group O show a higher prevalence of hearing loss after industrial noise exposure. Group O individuals with normal hearing show reduced amplitudes in otoacoustic emission recordings. Whether blood group status affects auditory brainstem responses (ABR), which reflect cochlear hair cell and auditory nerve bioelectric activity, is unclear. AIMS/OBJECTIVES To compare cochlear and peripheral neural function across ABO blood groups by recording cochlear microphonic (CM) and wave I ABR responses. MATERIAL AND METHODS Sixty normal-hearing young adults, with 15 participants from each blood group, completed 70 dB nHL click stimulus ABR measures. CM amplitude, wave I amplitude and wave I latency data were obtained for both ears. One-way ANOVA tests compared results across the ABO groups. RESULTS A statistically significant difference for wave I peak-to-peak amplitudes across the four groups was found. Post-hoc comparisons revealed group O had significantly reduced wave I amplitudes compared to group A participants. A consistent trend of reduced CM amplitudes and prolonged wave I latencies was shown in group O participants. CONCLUSIONS AND SIGNIFICANCE Emerging evidence exists that ABO blood group status may influence auditory function.
Collapse
Affiliation(s)
- Yunqiu Yang
- Faculty of Education, Human Communication, Development and Information Sciences, University of Hong Kong, Hong Kong SAR, China
| | - Linda J. Hood
- Department of Hearing and Speech Sciences, Vanderbilt University, Nashville, TN, USA
| | - Bradley McPherson
- Faculty of Education, Human Communication, Development and Information Sciences, University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
25
|
Zalewski CK, Sydlowski SA, King KA, Bianconi S, Dang Do A, Porter FD, Brewer CC. Auditory phenotype of Smith-Lemli-Opitz syndrome. Am J Med Genet A 2021; 185:1131-1141. [PMID: 33529473 DOI: 10.1002/ajmg.a.62087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/23/2020] [Accepted: 01/07/2021] [Indexed: 11/11/2022]
Abstract
Smith-Lemli-Opitz syndrome (SLOS) is an autosomal recessive multiple congenital malformation and intellectual disability syndrome resulting from variants in DHCR7. Auditory characteristics of persons with SLOS have been described in limited case reports but have not been systematically evaluated. The objective of this study is to describe the auditory phenotype in SLOS. Age- and ability-appropriate hearing evaluations were conducted on 32 patients with SLOS. A subset of 21 had auditory brainstem response testing, from which an auditory neural phenotype is described. Peripheral or retrocochlear auditory dysfunction was observed in at least one ear of 65.6% (21) of the patients in our SLOS cohort. The audiometric phenotype was heterogeneous and included conductive, mixed, and sensorineural hearing loss. The most common presentation was a slight to mild conductive hearing loss, although profound sensorineural hearing loss was also observed. Abnormal auditory brainstem responses indicative of retrocochlear dysfunction were identified in 21.9% of the patients. Many were difficult to test behaviorally and required objective assessment methods to estimate hearing sensitivity. Individuals with SLOS are likely to have hearing loss that may impact communication, including speech and language development. Routine audiologic surveillance should be conducted to ensure prompt management of hearing loss.
Collapse
Affiliation(s)
| | - Sarah A Sydlowski
- NIDCD, National Institutes of Health, Bethesda, Maryland, USA.,Cleveland Clinic Head & Neck Institute, Cleveland, Ohio, USA
| | - Kelly A King
- NIDCD, National Institutes of Health, Bethesda, Maryland, USA
| | - Simona Bianconi
- NICHD, National Institutes of Health, Bethesda, Maryland, USA
| | - An Dang Do
- NICHD, National Institutes of Health, Bethesda, Maryland, USA
| | - Forbes D Porter
- NICHD, National Institutes of Health, Bethesda, Maryland, USA
| | - Carmen C Brewer
- NIDCD, National Institutes of Health, Bethesda, Maryland, USA
| |
Collapse
|
26
|
Olajuyin OA, Olatunya OS, Olajide TG, Olajuyin AB, Olajuyin AA, Babatola AO, Komolafe AK. Aetiologies of profound bilateral sensorineural hearing loss among children in Ekiti State, South Western Nigeria. Pan Afr Med J 2021; 38:98. [PMID: 33889264 PMCID: PMC8035681 DOI: 10.11604/pamj.2021.38.98.21438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/02/2020] [Indexed: 11/11/2022] Open
Abstract
Introduction a strong need exists for the knowledge of aetiologies of diseases as this will guide the clinicians on the strategies for their treatment and prevention. In this study, we determined the aetiologies of profound bilateral sensorineural hearing loss (pbSNHL) with a view to provide the relevant data needed for preventive and therapeutic intervention among children in Ekiti State, South Western Nigeria. Methods medical records of children with pbSNHL seen over a ten-year period were analysed. Results in all, records of 142 children with pbSNHL were analysed. The results showed spectrum of aetiologies that were similar to those reported decades ago with the 'unknown' assuming a recurring decimal. Of the known (acquired) cases, measles takes up the largest 'chunk' with a prevalence of 45.8%. Twenty-eight (32.2%) of those with febrile illnesses had treated their fever with ototoxic antibiotics. Late diagnosis was characteristic of the pbSNHL. Conclusion this study shows that there hasn't been any significant shift in the common causes of pbSNHL. Of great concern is the persistence of the 'unknown' causes which assumes a recurring decimal in this and previous studies. Also worrisome is the high prevalence of measles-induced pbSNHL despite the availability of anti-measles vaccine. We therefore suggest effective immunization against measles and other vaccine-preventable causes of pbSNHL. The need for intensive research on the unknown causes of pbSNHL is hereby stressed. Also recommended is routine hearing assessment for survivors of febrile conditions so as to detect, if any, hearing loss promptly.
Collapse
Affiliation(s)
- Oyebanji Anthony Olajuyin
- Department of Ear, Nose and Throat, Ekiti State University Teaching Hospital, Ado Ekiti, Ekiti State, Nigeria
| | - Oladele Simeon Olatunya
- Department of Paediatrics, Ekiti State University Teaching Hospital, Ado Ekiti, Ekiti State, Nigeria
| | - Toye Gabriel Olajide
- Department of Ear, Nose and Throat, Federal Teaching Hospital, Ido Ekiti/Afe Babalola University, Ado Ekiti (ABUAD), Ekiti State, Nigeria
| | - Ademola Busayo Olajuyin
- Department of Family Medicine, Ekiti State University Teaching Hospital, Ado Ekiti, Ekiti State, Nigeria
| | - Adebola Ayotomiwa Olajuyin
- Department of Obstetrics-gynaecology, Ekiti State University Teaching Hospital, Ado Ekiti, Ekiti State, Nigeria
| | | | | |
Collapse
|
27
|
Ma SH, Ang MD, Chang YT, Dai YX. Association between vitiligo and hearing loss: A systemic review and metaanalysis. J Am Acad Dermatol 2021; 85:1465-1472. [PMID: 33359081 DOI: 10.1016/j.jaad.2020.12.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/20/2020] [Accepted: 12/09/2020] [Indexed: 01/11/2023]
Abstract
BACKGROUND Vitiligo is a common depigmenting disorder caused by the autoimmune destruction of melanocytes. Some evidence suggests the involvement of melanocytes in the auditory system in the disease process. However, the relationship between vitiligo and sensorineural hearing loss (SNHL) remains uncertain. OBJECTIVE We investigated the association between vitiligo and SNHL. METHODS In this systematic review and meta-analysis, EMBASE, MEDLINE, PubMed, and the Cochrane database were searched for studies examining the association between SNHL and vitiligo from inception to June 28, 2020. RESULTS A total of 14 case-control studies with 938 patients with vitiligo were included. The meta-analysis showed a significant association of SNHL with vitiligo (odds ratio [OR] 6.02 [95% confidence interval {CI} 3.41-10.62]). The association remained significant after adjustment of study quality and publication bias, with ORs of 5.30 (95% CI 1.53-18.35), and 3.45 (95% CI 1.75-6.81), respectively. LIMITATIONS Heterogenous definition and measurement of hearing loss and racial differences are potential sources of bias. CONCLUSION The evidence to date supports an association of SNHL with vitiligo. These results suggest audiologic assessment for early recognition and management of hearing loss in patients with vitiligo.
Collapse
Affiliation(s)
- Sheng-Hsiang Ma
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Min-De Ang
- School of Medicine, National Taiwan University, Taipei, Taiwan; Department of Internal Medicine, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Yun-Ting Chang
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ying-Xiu Dai
- Department of Dermatology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan.
| |
Collapse
|
28
|
Yao Q, Jiang Z, Zhang J, Huang S, He S, Feng Y, Wang H, Yin S. Steroid Administration Approach for Idiopathic Sudden Sensorineural Hearing Loss: A National Survey in China. Ann Otol Rhinol Laryngol 2020; 130:752-759. [PMID: 33185127 DOI: 10.1177/0003489420968879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To optimize a protocol for the steroid administration approach for idiopathic sudden sensorineural hearing loss (ISSNHL) in China. METHODS A questionnaire was distributed to otolaryngologists. The data on demographics, indications for first-line and salvage treatment, such as intratympanic administration of steroids (ITS) and postauricular steroids (PAS), and procedures were analyzed. RESULTS 74 respondents used oral steroids, 112 used intravenous injections, 10 used ITS and 6 used PAS as a monotherapy for first-line treatment, and 135 used ITS or PAS in conjunction with oral or intravenous injection as a first-line treatment. Of the 249 respondents who used ITS, 97.19% adopted it as salvage therapy. The most commonly used steroid was 0.5 ml dexamethasone at 5 mg/ml and the most common side effect was pain. Of the 174 respondents who used PAS, 94.25% used it as salvage therapy. The most commonly used steroid was 0.5 ml methylprednisolone mixed with 0.5 ml lidocaine. CONCLUSIONS The obtained data suggested that intravenous injection of steroids was the most popular treatment for ISSNHL and that ITS or PAS were used as a salvage treatment in China.
Collapse
Affiliation(s)
- Qingxiu Yao
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Zhuang Jiang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Jiajia Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Shujian Huang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Shouhuan He
- Department of Otolaryngology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Yanmei Feng
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Hui Wang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| | - Shankai Yin
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China
| |
Collapse
|
29
|
Abstract
INTRODUCTION Sweet syndrome (SS) is an idiopathic autoimmune disease which has been associated with various extracutaneous manifestations. Otologic symptoms secondary to SS are characterized by bilateral, progressive, sensorineural hearing loss, which requires auditory rehabilitation with, for example, cochlear implantation. PATIENT CONCERNS A 43-year-old woman complaining of bilateral sudden hearing loss visited the Emergency Department of our University. Abrupt onset of fever peaking up to 40°C and vomiting accompanied the hearing loss and other associated symptoms were: tinnitus that sounded like a machine humming, mild dizziness, a painful rash (on the right upper eyelid, chest, back, forearms, and lower extremities), arthralgia in both the hip and knee joints, and vision loss in the right eye. The patient had no history of autoimmune diseases or surgery. DIAGNOSIS Pure tone audiometry and biopsy on the skin lesion were performed. SS with bilateral sudden sensorineural hearing loss was confirmed. INTERVENTIONS The patient was treated with intravenous prednisolone and topical steroids. OUTCOMES After a week of treatment, skin lesions had improved. And 3 months after treatment, the hearing test showed full recovery. CONCLUSION This case emphasizes the point that early diagnosis and timely treatment are essential for hearing recovery in patients with SS who have otologic symptoms.
Collapse
Affiliation(s)
- Yeon Seok You
- Department of Otorhinolaryngology-Head and Neck Surgery
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeon-ju, Republic of Korea
| | - Sang Woo Park
- Department of Dermatology, Chonbuk National University, School of Medicine
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeon-ju, Republic of Korea
| | - Seok Kweon Yun
- Department of Dermatology, Chonbuk National University, School of Medicine
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeon-ju, Republic of Korea
| | - Eun Jung Lee
- Department of Otorhinolaryngology-Head and Neck Surgery
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeon-ju, Republic of Korea
| |
Collapse
|
30
|
Alvarado JC, Fuentes-Santamaría V, Juiz JM. Antioxidants and Vasodilators for the Treatment of Noise-Induced Hearing Loss: Are They Really Effective? Front Cell Neurosci 2020; 14:226. [PMID: 32792910 PMCID: PMC7387569 DOI: 10.3389/fncel.2020.00226] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/29/2020] [Indexed: 12/26/2022] Open
Abstract
We live in a world continuously immersed in noise, an environmental, recreational, and occupational factor present in almost every daily human activity. Exposure to high-level noise could affect the auditory function of individuals at any age, resulting in a condition called noise-induced hearing loss (NIHL). Given that by 2018, more than 400 million people worldwide were suffering from disabling hearing loss and that about one-third involved noise over-exposure, which represents more than 100 million people, this hearing impairment represents a serious health problem. As of today, there are no therapeutic measures available to treat NIHL. Conventional preventive measures, including public awareness and education and physical barriers to noise, do not seem to suffice, as the population is still being affected by damaging noise levels. Therefore, it is necessary to develop or test pharmacological agents that may prevent and/or diminish the impact of noise on hearing. Data availability about the pathophysiological processes involved in triggering NIHL has allowed researchers to use compounds, that could act as effective therapies, by targeting specific mechanisms such as the excess generation of free radicals and blood flow restriction to the cochlea. In this review, we summarize the advantages/disadvantages of these therapeutic agents, providing a critical view of whether they could be effective in the human clinic.
Collapse
Affiliation(s)
- Juan Carlos Alvarado
- Facultad de Medicina, Instituto de Investigación en Discapacidades, Neurológicas (IDINE), Universidad de Castilla-La Mancha, Albacete, Spain
| | - Verónica Fuentes-Santamaría
- Facultad de Medicina, Instituto de Investigación en Discapacidades, Neurológicas (IDINE), Universidad de Castilla-La Mancha, Albacete, Spain
| | - José M Juiz
- Facultad de Medicina, Instituto de Investigación en Discapacidades, Neurológicas (IDINE), Universidad de Castilla-La Mancha, Albacete, Spain.,Department of Otolaryngology, Hannover Medical School, NIFE-VIANNA, Cluster of Excellence Hearing4all-German Research Foundation, Hannover, Germany
| |
Collapse
|
31
|
Khoza-Shangase K, Masondo N. What Are the Current Audiological Practices for Ototoxicity Assessment and Management in the South African Healthcare Context? Int J Environ Res Public Health 2020; 17:E2613. [PMID: 32290287 PMCID: PMC7178081 DOI: 10.3390/ijerph17072613] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 11/17/2022]
Abstract
The study was an initial exploration of the current ototoxicity assessment and management practices by audiologists in South Africa. An exploratory survey research methodology through a cross-sectional research design was adopted where audiologists were recruited from professional associations' databases in South Africa, using specific inclusion criteria. The study made use of an 18-item web-based survey guided by the Health Professions Council of South Africa (HPCSA) (2018) guidelines which were developed from reviewing international guidelines such as the American Speech-Language-Hearing Association (ASHA,1994) and the American Academy of Audiology (AAA, 2009). The study surveyed 31 audiologists from across the country. Data were analyzed through descriptive statistics. Findings implied significant gaps between knowledge and translation of this knowledge into practice. Over two thirds of the participants engage with ototoxicity monitoring and management, but the practices adopted by them do not align with international standards nor with the national HPCSA guidelines on assessment and management of patients on ototoxic medications. Most participants do not conduct baseline assessments, and the frequency of monitoring is irregular and reduced from the recommended; thus influencing ability for early detection and intervention of ototoxicity within this context. Non-standard assessment battery is used for assessment and monitoring, raising questions about the reliability and validity of the data used to make preventive treatment decisions. Lack of collaborative work between audiologists and the rest of the clinical team involved in the treatment of patients on ototoxic medications was found to be an important contributing factor to the less than optimal ototoxicity management practices. Of factors potentially influencing adherence to guidelines, the institution of employment, specifically employment in a tuberculosis hospital, seemed to have a positive influence, possibly due to the focused nature of the audiologists' scope of practice there as well as availability of resources. The level of education appeared to have no influence. Current findings provide contextually relevant evidence on ototoxicity assessment and management within this context. They raise important implications for guidelines adherence and translating knowledge, policies and guidelines into practice, clinical assessment and management protocols followed, appropriate resource allocation per programme, as well as strategic planning for national ototoxicity assessment and management programmes in context. The findings also raise important implications for low- and middle-income countries, in terms of adopting international guidelines without considering context.
Collapse
Affiliation(s)
- Katijah Khoza-Shangase
- Department of Speech Pathology and Audiology, School of Human and Community Development, University of the Witwatersrand, Johannesburg 2050, South Africa;
| | | |
Collapse
|
32
|
Abouzari M, Goshtasbi K, Chua JT, Tan D, Sarna B, Saber T, Lin HW, Djalilian HR. Adjuvant Migraine Medications in the Treatment of Sudden Sensorineural Hearing Loss. Laryngoscope 2020; 131:E283-E288. [PMID: 32243585 DOI: 10.1002/lary.28618] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/30/2020] [Accepted: 02/11/2020] [Indexed: 01/03/2023]
Abstract
OBJECTIVES/HYPOTHESIS To examine the hearing outcomes of patients with sudden sensorineural hearing loss (SSNHL) treated with oral and intratympanic (IT) steroid only or a combination of steroid and migraine treatment. Our hypothesis was that adjuvant migraine medications may improve outcomes in SSNHL. METHODS A retrospective chart review at a tertiary otology center was conducted to identify patients with SSNHL who received oral steroid and IT dexamethasone injection(s) with or without migraine medications (a combination of nortriptyline and topiramate). RESULTS A total of 47 patients received oral steroid and IT dexamethasone injection(s) only, and 46 patients received oral steroid and IT dexamethasone injection(s) as well as migraine lifestyle changes plus a combination of nortriptyline and topiramate. There were no significant differences in demographics and baseline audiometric data between the two groups. Both groups demonstrated improvements in pure tone average (PTA) and hearing thresholds at 250 Hz and 8000 Hz posttreatment. However, compared to steroid-only group, the adjuvant migraine medications group had significantly greater improvements in hearing thresholds at the lower frequencies (250 Hz, 500 Hz, 1000 Hz). Patients in the latter cohort also had greater improvement in PTA (P = .01) and received fewer IT injections (P = .04) PTA improvement of ≥ 10 dB was observed in 36 patients (78%) in the adjuvant migraine medications group and 22 patients (46%) in the control group (P < .001). CONCLUSION In multimodal treatment of SSNHL, supplementing oral and IT steroid with migraine medications may result in greater improvements in lower frequency hearing thresholds and PTA. Furthermore, adjuvant migraine treatment can lead to decrease in number of IT injections, thus reducing procedure-related risks and complications. LEVEL OF EVIDENCE 3 Laryngoscope, 131:E283-E288, 2021.
Collapse
Affiliation(s)
- Mehdi Abouzari
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Khodayar Goshtasbi
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Janice T Chua
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Donald Tan
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Brooke Sarna
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Tina Saber
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Harrison W Lin
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A
| | - Hamid R Djalilian
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, California, U.S.A.,Department of Biomedical Engineering, University of California, Irvine, California, U.S.A
| |
Collapse
|
33
|
Christiansen M, Jensen ES, Brandt CT, Kirchmann M. Otoacoustic emissions in patients with bacterial meningitis. Int J Audiol 2020; 59:647-653. [PMID: 32100579 DOI: 10.1080/14992027.2020.1727967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objective: Systematic evaluation of studies using otoacoustic emissions (OAEs) to monitor cochlear damage in patients with bacterial meningitis.Design: Systematic review. This includes articles retrieved from PUBMED and EMBASE. The search-strategy was based on the PICO-model. Data processing involved Cochrane Public Health Data Extraction template in addition to assessment of risk of bias and applicability with the Second Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) tool.Study samples: Thirty-eight articles were identified with 6 studies comprising 391 children and 17 adult patients eligible for full assessment.Results: Studies were heterogenic and the timing of OAE was incomparable between studies. The frequency of severe loss of hearing was reported to occur between 1.6 and 21% of the patients with culture-proven meningitis. The included studies, albeit heterogenic, found OAE-screening feasible and sensitive in children recovering from bacterial meningitis.Conclusion: No children with hearing loss were reported to pass an OAE screening in any of the included studies. The timing, sensitivity and extent of sensorineural hearing loss determined by OAE could not be assessed from the included studies. Levels of risk of bias were inconsistent and the clinical feasibility for routine inclusion of patients with bacterial meningitis was uncertain. The technological development within this field implies the need for further research.
Collapse
Affiliation(s)
- Malina Christiansen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Oto-Rhino-Laryngology, Nordsjaellands Hospital, Hillerod, Denmark
| | | | - Christian Thomas Brandt
- Department of Infectious Diseases, Nordsjaellands Hospital, Copenhagen Denmark.,Department of Clinical Medicine, Zealand University Hospital, University of Copenhagen
| | - Malene Kirchmann
- Department of Oto-Rhino-Laryngology, Nordsjaellands Hospital, Hillerod, Denmark
| |
Collapse
|
34
|
Aremu SK, Adewoye RK, Adeyanju AT, Ekpo DS. Prevalence, Awareness, and Factors Associated with Noise-induced Hearing Loss in Occupational Motorcyclists in Southwestern Nigeria. Niger J Surg 2020; 26:53-58. [PMID: 32165837 PMCID: PMC7041349 DOI: 10.4103/njs.njs_26_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/29/2019] [Accepted: 09/16/2019] [Indexed: 11/04/2022] Open
Abstract
Background There is generally a lack of awareness among professional motorcycle riders on the risk of noise-induced hearing loss; due to a variety of factors, they are exposed to by the nature of their job. This study, therefore, aimed to determine the prevalence, awareness, and factors associated with noise-induced hearing loss among motorcycle riders in Ido-Ekiti, Ekiti State, Nigeria. Methodology A cross-sectional descriptive study was conducted between February and March 2019 among 420 motorcycle riders in Ido-Ekiti, Ekiti State, Southwestern Nigeria. Data analyses were performed using the SPSS software version 20. P ≤ 0.05 was considered as statistically significant. Three hundred and sixty of the total of 420 consented for pure-tone audiometry which was done to assess their hearing thresholds. Results Majority of the respondents had at least a secondary level of education. About 14.5% of the total study population had hearing loss, among which 15% also reported an accompanying ear discharge. All of the respondents did not have any history of hearing loss before they started the occupation. More than half of the study population was aware of noise-induced hearing loss and was able to link it to their profession. None of the study participants used a hearing aid, but 17.9% reported using ear mufflers and 16.2% used earphones while riding. Conclusion Majority of our respondents had secondary school education and 14.5% of the total study population reported hearing loss, among which 15% also reported an accompanying ear discharge. Furthermore, more than half of the study population was aware of noise-induced hearing loss and was able to link it to their profession, whereas 50% agreed that their occupation placed them at risk of hearing loss.
Collapse
Affiliation(s)
- Shuaib Kayode Aremu
- Department of Ear, Nose and Throat, Federal Teaching Hospital Ido-Ekiti/Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Rasaq Kayode Adewoye
- Department of Community Medicine Federal Teaching Hospital, Ido Ekiti/Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Alao Taiye Adeyanju
- Department of Community Medicine Federal Teaching Hospital, Ido Ekiti, Ekiti State, Nigeria
| | - David Sylvanus Ekpo
- Department of Community Medicine Federal Teaching Hospital, Ido Ekiti, Ekiti State, Nigeria
| |
Collapse
|
35
|
Affiliation(s)
- Joseph W Clyde
- The Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Vijay A Patel
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Sangam Kanekar
- Department of Radiology, Division of Neuroradiology, The Pennsylvania State University, College of Medicine, Hershey, PA, USA
| | - Huseyin Isildak
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA, USA
| |
Collapse
|
36
|
Amarillo E, Navarro A, Hernández-García E, Plaza G. Intratympanic steroids for combined treatment of idiopathic sudden hearing loss: when is it too late? Acta Otolaryngol 2019; 139:632-635. [PMID: 31124732 DOI: 10.1080/00016489.2019.1614222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Background: Idiopathic sudden sensorineural hearing loss (ISSNHL) requires early treatment. Objective: To describe our experience on intratympanic steroid treatment (ITS) of ISSNHL analyzing the delay to start therapy as prognostic factor. Material and methods: We perform a retrospective study on ISSNHL treated with systemic steroids without full recovery on PTA (pure tone average) according to Siegel criteria. They were divided into two different groups: one group that additionally received ITS as combined therapy (treatment group), and another without it (control group). We analyzed the hearing recovery at 6 months and 2 years, and the influence of the delay to start ITS in the recovery. Results: After ITS was added, further complete recovery was achieved in 10 patients of the treatment group. After 6 months, PTA improvement in the treatment group was 10.84 dB, compared to 1.13 dB in the control group (p<.0001). Nevertheless, patients starting such combination of oral steroids and ITS within 8 days of diagnosis had an additional gain of 15 dB in the first 6 months, that increased to 19.17 dB after 24 months (p<.022). Conclusions: When ITS was added within the first 8 days, a significantly better and more stable response was obtained.
Collapse
Affiliation(s)
- Elizabeth Amarillo
- Otolaryngology Department, Complejo Hospitalario La Mancha Centro, Alcázar de San Juan, Spain
- Rey Juan Carlos University, International doctoral school. Madrid, Spain
| | - Andres Navarro
- Otolaryngology Department, Fuenlabrada Universitary Hospital. Fuenlabrada, Spain
| | - Estefania Hernández-García
- Rey Juan Carlos University, International doctoral school. Madrid, Spain
- Otolaryngology Department, Fuenlabrada Universitary Hospital. Fuenlabrada, Spain
| | - Guillermo Plaza
- Rey Juan Carlos University, International doctoral school. Madrid, Spain
- Otolaryngology Department, Fuenlabrada Universitary Hospital. Fuenlabrada, Spain
| |
Collapse
|
37
|
Dobrianskyj FM, Dias Gonçalves ÍR, Tamaoki Y, Mitre EI, Quintanilha Ribeiro FA. Correlation Between Sensorineural Hearing Loss and Chronic Otorrhea. Ear Nose Throat J 2019; 98:482-485. [PMID: 31142161 DOI: 10.1177/0145561319840573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Many studies have been trying to correlate chronic otorrhea, both in children and in adults, with the sensorineural hearing loss in the affected ear, but have been obtaining contradictory results. This loss might be due to the likely toxicity of the bacteria involved, effects of inflammatory cytokines, or constant use of ototoxic antibiotics. All the studies evaluated up to the present date compared the affected ear with the normal contralateral ear. From the digitized archive of otological surgery files of the Department of Otorhinolaryngology, the ears of patients with chronic otorrhea were evaluated visually and compared with the normal contralateral ears. Ears with otorrhea were also compared to ears with dry tympanic perforation of other patients. Ears with suppuration were evaluated for cholesteatoma. The duration of otorrhea was taken into account. The sensorineural hearing threshold was evaluated for the frequencies of 500, 1000, 2000, and 4000 Hz. A total of 98 patients with chronic otorrhea and 60 with dry tympanic membrane perforation were evaluated. From a statistical study, a correlation between sensorineural hearing loss and the chronic otorrhea was observed, in comparison both with contralateral normal ears and with dry perforated ears of other patients. There was no relationship with the duration of suppuration or with whether this was due to cholesteatoma. Sensorineural hearing loss occurs in ears with chronic otorrhea. The duration of otorrhea and the etiology of suppuration did not influence the hearing loss. The great majority of otorrhea cases begin during childhood.
Collapse
Affiliation(s)
| | - Ísis Rocha Dias Gonçalves
- Department of Otorhinolaryngology, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil
| | - Yumi Tamaoki
- Department of Otorhinolaryngology, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil
| | - Edson Ibrahim Mitre
- Department of Otorhinolaryngology, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil
| | | |
Collapse
|
38
|
Dobbels B, Mertens G, Gilles A, Claes A, Moyaert J, van de Berg R, Van de Heyning P, Vanderveken O, Van Rompaey V. Cognitive Function in Acquired Bilateral Vestibulopathy: A Cross-Sectional Study on Cognition, Hearing, and Vestibular Loss. Front Neurosci 2019; 13:340. [PMID: 31105513 PMCID: PMC6492511 DOI: 10.3389/fnins.2019.00340] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/25/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Several studies have demonstrated cognitive deficits in patients with bilateral vestibulopathy (BVP). So far, little attention has been paid to the hearing status of vestibular patients when evaluating their cognition. Given the well-established link between sensorineural hearing loss (SNHL) and cognitive decline and the high prevalence of SNHL in BVP patients, it is therefore uncertain if the cognitive deficits in BVP patients are solely due to their vestibular loss or might be, partially, explained by a concomitant SNHL. OBJECTIVE To evaluate the link between cognition, hearing, and vestibular loss in BVP patients. DESIGN Prospective cross-sectional analysis of cognitive performance in patients with BVP and control participants without vestibular loss. Both groups included subjects with a variety of hearing (dys)function. Cognition was assessed by means of the Repeatable Battery for the Assessment of Neuropsychological Status for Hearing Impaired Individuals (RBANS-H). RESULTS Sixty-four BVP patients were evaluated and compared with 83 control participants. For each subscale and the totale RBANS-H scale a multiple linear regression model was fitted with the following variables: vestibular loss, hearing loss, age, gender, and education. Hearing loss seemed to be associated with worse outcome on the total RBANS-H scale and subscales immediate memory and language. Vestibular loss, on the other hand, was linked to worse performance on the attention subscale of the RBANS-H. Furthermore, we did not observe a correlation between saccular function and cognition. CONCLUSION This study has found general cognitive deficits in a large sample size of BVP patients. Multiple linear regression models revealed that both vestibular and hearing dysfunction were associated with different subscales of the cognitive test battery, the RBANS-H. Whereas hearing loss was associated with worse performance on total RBANS-H score, immediate memory and language, vestibular loss was observed to negatively affect attention performance.
Collapse
Affiliation(s)
- Bieke Dobbels
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Griet Mertens
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Annick Gilles
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Annes Claes
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Julie Moyaert
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Raymond van de Berg
- Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Center, Maastricht, Netherlands
- Faculty of Physics, Tomsk State University, Tomsk, Russia
| | - Paul Van de Heyning
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Olivier Vanderveken
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Vincent Van Rompaey
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| |
Collapse
|
39
|
Lechner M, Sutton L, Ferguson M, Abbas Y, Sandhu J, Shaida A. Intratympanic Steroid Use for Sudden Sensorineural Hearing Loss: Current Otolaryngology Practice. Ann Otol Rhinol Laryngol 2019; 128:490-502. [PMID: 30770021 DOI: 10.1177/0003489419828759] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To investigate the current practice of intratympanic steroid (ITS) injection for sudden sensorineural hearing loss (SSNHL) in the United Kingdom and link the data with data from the United States and continental Europe. METHODS A survey of 21 questions was distributed to members of the British Society of Otology using an online survey platform via ENT UK. Data obtained from UK otolaryngologists (n = 171) were integrated with previously published data from other countries, including the United States (n = 63) and continental Europe (n = 908). RESULTS In the United Kingdom, 62% of responding otolaryngologists use ITS injection for SSNHL, while 38% do not. Of those using ITS, 59% use it as first-line treatment, either using it in conjunction with oral steroids (51%) or using it as monotherapy (8%). Of those that use ITS, a majority (83%) use it as salvage therapy when primary treatment with systemic steroids has failed, and similar results are found in the continental Europe and US surveys. The most commonly used preparation is dexamethasone. Responses to questions regarding treatment regimes used are enlightening and show considerable variation in the treatment regimes used within and between countries. CONCLUSIONS There is a wide variation in practice with regards to ITS for SSNHL hearing loss in the United Kingdom, United States, and continental Europe. In the absence of protocols or definitive guidance from published literature, knowledge of contemporary practice may help guide or encourage reevaluation of clinical practice and will help guide the design of future clinical trials.
Collapse
Affiliation(s)
- Matt Lechner
- 1 Royal National Throat, Nose and Ear Hospital, University College London Hospitals NHS Trust, London, UK.,2 Royal London Hospital, Barts Health NHS Trust, London, UK.,3 UCL Cancer Institute, University College London, London, UK
| | - Liam Sutton
- 1 Royal National Throat, Nose and Ear Hospital, University College London Hospitals NHS Trust, London, UK
| | - Mark Ferguson
- 1 Royal National Throat, Nose and Ear Hospital, University College London Hospitals NHS Trust, London, UK
| | - Yasmin Abbas
- 2 Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Jaswinder Sandhu
- 4 Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Azhar Shaida
- 1 Royal National Throat, Nose and Ear Hospital, University College London Hospitals NHS Trust, London, UK
| |
Collapse
|
40
|
Pasternak Y, Ziv L, Attias J, Amir J, Bilavsky E. Valganciclovir Is Beneficial in Children with Congenital Cytomegalovirus and Isolated Hearing Loss. J Pediatr 2018; 199:166-170. [PMID: 29605391 DOI: 10.1016/j.jpeds.2018.02.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/30/2018] [Accepted: 02/13/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To evaluate the efficacy of antiviral treatment for infants with congenital cytomegalovirus (cCMV) with isolated sensorineural hearing loss (SNHL). STUDY DESIGN Data were reviewed retrospectively for infants with isolated SNHL who received prolonged antiviral treatment between 2005 and 2017. Hearing status was evaluated for infants who had been followed for >1 year. RESULTS Among 329 infants treated for cCMV, 59 (18%) were born with isolated SNHL. Hearing impairment was unilateral in 38 (64.4%) infants and bilateral in 21 (35.6%). Of the 80 affected ears at baseline, 55 (68.8%) improved, and only 2 (2.5%) deteriorated. Most of the improved ears (53/55 = 96.3%) returned to normal hearing with no deterioration observed in the ears that were unaffected at baseline. On best ear evaluation, of 21 infants who had bilateral hearing loss, 16 (76.1%) improved (93.7% regaining normal functional hearing); none deteriorated. CONCLUSION Infants born with isolated SNHL due to cCMV were found to benefit from prolonged antiviral treatment. These children (and ears) showed significant improvement in hearing status and no deterioration of unaffected ears at baseline. Our data serve as observational evidence of the benefits of antiviral treatment in these children. Avoiding treatment of these children due to the lack of prospective data is debatable.
Collapse
Affiliation(s)
- Yehonatan Pasternak
- Department of Pediatrics A, Schneider Children's Medical Center, Petah Tiqva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Liron Ziv
- Department of Pediatrics A, Schneider Children's Medical Center, Petah Tiqva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Joseph Attias
- Institute of Audiology and Clinical Neurophysiology, Schneider Children's Medical Center, Petah Tiqva, Israel; Department of Communication Sciences & Disorders, University of Haifa, Haifa, Israel
| | - Jacob Amir
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Department of Gynecology and Obstetrics, Rabin Medical Center, Beilinson Hospital, Petah Tiqva, Israel
| | - Efraim Bilavsky
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Department of Pediatrics C, Schneider Children's Medical Center, Petah Tiqva, Israel.
| |
Collapse
|
41
|
Sheppard S, Biswas S, Li MH, Jayaraman V, Slack I, Romasko EJ, Sasson A, Brunton J, Rajagopalan R, Sarmady M, Abrudan JL, Jairam S, DeChene ET, Ying X, Choi J, Wilkens A, Raible SE, Scarano MI, Santani A, Pennington JW, Luo M, Conlin LK, Devkota B, Dulik MC, Spinner NB, Krantz ID. Utility and limitations of exome sequencing as a genetic diagnostic tool for children with hearing loss. Genet Med 2018; 20:1663-1676. [PMID: 29907799 PMCID: PMC6295269 DOI: 10.1038/s41436-018-0004-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 03/20/2018] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Hearing loss (HL) is the most common sensory disorder in children. Prompt molecular diagnosis may guide screening and management, especially in syndromic cases when HL is the single presenting feature. Exome sequencing (ES) is an appealing diagnostic tool for HL as the genetic causes are highly heterogeneous. METHODS ES was performed on a prospective cohort of 43 probands with HL. Sequence data were analyzed for primary and secondary findings. Capture and coverage analysis was performed for genes and variants associated with HL. RESULTS The diagnostic rate using ES was 37.2%, compared with 15.8% for the clinical HL panel. Secondary findings were discovered in three patients. For 247 genes associated with HL, 94.7% of the exons were targeted for capture and 81.7% of these exons were covered at 20× or greater. Further analysis of 454 randomly selected HL-associated variants showed that 89% were targeted for capture and 75% were covered at a read depth of at least 20×. CONCLUSION ES has an improved yield compared with clinical testing and may capture diagnoses not initially considered due to subtle clinical phenotypes. Technical challenges were identified, including inadequate capture and coverage of HL genes. Additional considerations of ES include secondary findings, cost, and turnaround time.
Collapse
Affiliation(s)
- Sarah Sheppard
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sawona Biswas
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Mindy H Li
- Division of Genetics, Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA
| | - Vijayakumar Jayaraman
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ian Slack
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Edward J Romasko
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ariella Sasson
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Joshua Brunton
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ramakrishnan Rajagopalan
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Mahdi Sarmady
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jenica L Abrudan
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sowmya Jairam
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Elizabeth T DeChene
- Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Xiahoan Ying
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jiwon Choi
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Alisha Wilkens
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sarah E Raible
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Maria I Scarano
- Division of Genetics, Cooper University Health Care, Camden, NY, USA
| | - Avni Santani
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Jeffrey W Pennington
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Minjie Luo
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Laura K Conlin
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Batsal Devkota
- Department of Biomedical and Health Informatics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Matthew C Dulik
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Nancy B Spinner
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Division of Genomic Diagnostics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ian D Krantz
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| |
Collapse
|
42
|
Plevova P, Tvrda P, Paprskarova M, Turska P, Kantorova B, Mrazkova E, Zapletalova J. Genetic Aetiology of Nonsyndromic Hearing Loss in Moravia-Silesia. Medicina (Kaunas) 2018; 54:medicina54020028. [PMID: 30344259 PMCID: PMC6037260 DOI: 10.3390/medicina54020028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/01/2018] [Accepted: 05/02/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVE Hearing loss is the most common sensory deficit in humans. The aim of this study was to clarify the genetic aetiology of nonsyndromic hearing loss in the Moravian-Silesian population of the Czech Republic. PATIENTS AND METHODS This study included 200 patients (93 males, 107 females, mean age 16.9 years, ranging from 4 months to 62 years) with nonsyndromic sensorineural hearing loss. We screened all patients for mutations in GJB2 and the large deletion del(GJB6-D13S1830). We performed further screening for additional genes (SERPINB6, TMIE, COCH, ESPN, ACTG1, KCNQ4, and GJB3) with Sanger sequencing on a subset of patients that were negative for GJB2 mutations. RESULTS We detected biallelic GJB2 mutations in 44 patients (22%). Among these patients, 63.6%, 9.1% and 2.3% exhibited homozygous c.35delG, p.Trp24*, and p.Met34Thr mutations, respectively. The remaining 25% of these patients exhibited compound heterozygous c.35delG, c.-23+1G>A, p.Trp24*, p.Val37Ile, p.Met34Thr, p.Leu90Pro, c.235delC, c.313_326del14, p.Ser139Asn, and p.Gly147Leu mutations. We found a monoallelic GJB2 mutation in 12 patients (6.6%). We found no pathogenic mutations in the other tested genes. Conclusions: One fifth of our cohort had deafness related to GJB2 mutations. The del(GJB6-D13S1830), SERPINB6, TMIE, COCH, ESPN, ACTG1, GJB3, and KCNQ4 mutations were infrequently associated with deafness in the Moravian-Silesian population. Therefore, we suggest that del(GJB6-D13S1830) testing should be performed only when patients with deafness carry the monoallelic GJB2 mutation.
Collapse
Affiliation(s)
- Pavlina Plevova
- Department of Medical Genetics, University Hospital Ostrava, 17. listopadu 1790, 708 52 Ostrava, Czech Republic.
| | - Petra Tvrda
- Department of Medical Genetics, University Hospital Ostrava, 17. listopadu 1790, 708 52 Ostrava, Czech Republic.
| | - Martina Paprskarova
- Department of Medical Genetics, University Hospital Ostrava, 17. listopadu 1790, 708 52 Ostrava, Czech Republic.
| | - Petra Turska
- Department of Medical Genetics, University Hospital Ostrava, 17. listopadu 1790, 708 52 Ostrava, Czech Republic.
| | - Barbara Kantorova
- Department of Medical Genetics, University Hospital Ostrava, 17. listopadu 1790, 708 52 Ostrava, Czech Republic.
| | - Eva Mrazkova
- Department of Epidemiology and Public Health, Faculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava, Zábřeh, Czech Republic.
- Department of Otorhinolaryngology, Hospital of Havířov, Dělnická 1132/24, 736 01 Havířov, Czech Republic.
| | - Jana Zapletalova
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, 775 15 Olomouc, Czech Republic.
| |
Collapse
|
43
|
Gettelfinger JD, Dahl JP. Syndromic Hearing Loss: A Brief Review of Common Presentations and Genetics. J Pediatr Genet 2018; 7:1-8. [PMID: 29441214 PMCID: PMC5809162 DOI: 10.1055/s-0037-1617454] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/29/2017] [Indexed: 02/07/2023]
Abstract
Congenital hearing loss is one of the most common birth defects worldwide, with around 1 in 500 people experiencing some form of severe hearing loss. While over 400 different syndromes involving hearing loss have been described, it is important to be familiar with a wide range of syndromes involving hearing loss so an early diagnosis can be made and early intervention can be pursued to maximize functional hearing and speech-language development in the setting of verbal communication. This review aims to describe the presentation and genetics for some of the most frequently occurring syndromes involving hearing loss, including neurofibromatosis type 2, branchio-oto-renal syndrome, Treacher Collins syndrome, Stickler syndrome, Waardenburg syndrome, Pendred syndrome, Jervell and Lange-Nielsen syndrome, Usher syndromes, Refsum disease, Alport syndrome, MELAS, and MERRF.
Collapse
Affiliation(s)
- John D. Gettelfinger
- Department of Otolaryngology – Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - John P. Dahl
- Department of Otolaryngology – Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
| |
Collapse
|
44
|
Grasty MA, Ittenbach RF, Knightly C, Solot CB, Gerdes M, Bernbaum JC, Wernovsky G, Spray TL, Nicolson SC, Clancy RR, Licht DJ, Zackai E, Gaynor JW, Burnham NB. Hearing Loss after Cardiac Surgery in Infancy: An Unintended Consequence of Life-Saving Care. J Pediatr 2018; 192:144-151.e1. [PMID: 29246336 PMCID: PMC6447030 DOI: 10.1016/j.jpeds.2017.09.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 08/30/2017] [Accepted: 09/20/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES To investigate the prevalence of hearing loss after cardiac surgery in infancy, patient and operative factors associated with hearing loss, and the relationship of hearing loss to neurodevelopmental outcomes. STUDY DESIGN Audiologic and neurodevelopmental evaluations were conducted on 348 children who underwent repair of congenital heart disease at the Children's Hospital of Philadelphia as part of a prospective study evaluating neurodevelopmental outcomes at 4 years of age. A prevalence estimate was calculated based on presence and type of hearing loss. Potential risk factors and the impact of hearing loss on neurodevelopmental outcomes were evaluated. RESULTS The prevalence of hearing loss was 21.6% (95% CI, 17.2-25.9). The prevalence of conductive hearing loss, sensorineural hearing loss, and indeterminate hearing loss were 12.4% (95% CI, 8.8-16.0), 6.9% (95% CI, 4.1-9.7), and 2.3% (95% CI, 0.6-4.0), respectively. Only 18 of 348 subjects (5.2%) had screened positive for hearing loss before this study and 10 used a hearing aid. After adjusting for patient and operative covariates, younger gestational age, longer postoperative duration of stay, and a confirmed genetic anomaly were associated with hearing loss (all P < .01). The presence of hearing loss was associated with worse language, cognition and attention (P <.01). CONCLUSIONS These findings suggest that the prevalence of hearing loss in preschool children after heart surgery in infancy may be 20-fold higher than in the 1% prevalence seen in the general population. Younger gestational age, presence of a genetic anomaly, and longer postoperative duration of stay were associated with hearing loss. Hearing loss was associated with worse neurodevelopmental outcomes.
Collapse
Affiliation(s)
- Madison A. Grasty
- Division of Cardiothoracic Surgery, Children’s Hospital of
Philadelphia, Philadelphia, Pennsylvania
| | - Richard F. Ittenbach
- Division of Biostatistics and Epidemiology, Cincinnati
Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Carol Knightly
- Center for Childhood Communication, Children’s Hospital of
Philadelphia, Philadelphia, Pennsylvania
| | - Cynthia B. Solot
- Center for Childhood Communication, Children’s Hospital of
Philadelphia, Philadelphia, Pennsylvania
| | - Marsha Gerdes
- Center for Psychology, Children’s Hospital of Philadelphia,
Philadelphia, Pennsylvania
| | - Judy C. Bernbaum
- Center for Pediatrics, Children’s Hospital of Philadelphia,
Philadelphia, Pennsylvania
| | - Gil Wernovsky
- Center for Cardiology, Children’s Hospital of Philadelphia,
Philadelphia, Pennsylvania,Department of Anesthesia and Critical Care Medicine,
Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Thomas L. Spray
- Division of Cardiothoracic Surgery, Children’s Hospital of
Philadelphia, Philadelphia, Pennsylvania
| | - Susan C. Nicolson
- Department of Anesthesia and Critical Care Medicine,
Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Robert R. Clancy
- Department of Pediatrics Division of Neurology, Children’s
Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Daniel J. Licht
- Department of Pediatrics Division of Neurology, Children’s
Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Elaine Zackai
- Center for Pediatrics, Children’s Hospital of Philadelphia,
Philadelphia, Pennsylvania,Department of Genetics, Children’s Hospital of Philadelphia,
Philadelphia, Pennsylvania
| | - J. William Gaynor
- Division of Cardiothoracic Surgery, Children’s Hospital of
Philadelphia, Philadelphia, Pennsylvania
| | - Nancy B. Burnham
- Division of Cardiothoracic Surgery, Children’s Hospital of
Philadelphia, Philadelphia, Pennsylvania
| |
Collapse
|
45
|
Katipoğlu N, Karapinar TH, Demir K, Aydin Köker S, Nalbantoğlu Ö, Ay Y, Korkmaz HA, Oymak Y, Yıldız M, Tunç S, Hazan F, Vergin C, Ozkan B. Infantile-onset thiamine responsive megaloblastic anemia syndrome with SLC19A2 mutation: a case report. ARCH ARGENT PEDIATR 2017; 115:e153-e156. [PMID: 28504500 DOI: 10.5546/aap.2017.eng.e153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 12/05/2016] [Indexed: 11/12/2022]
Abstract
BACKGROUND Thiamine-responsive megaloblastic anemia syndrome (TRMA), also known as Rogers syndrome, is characterized by megaloblastic anemia, sensorineural hearing loss, and diabetes mellitus. Disturbances of the thiamine transport into the cells results from homozygous or compound heterozygous mutations in the SLC19A2 gene. CASE PRESENTATION We report a girl which presented with sensorineural deafness treated with a hearing prosthesis, insulin requiring diabetes, macrocytic anemia, treated with thiamine (100 mg/day). Hemoglobin level improved to 12.1 g/dl after dose of thiamine therapy increased up to 200 mg/day. CONCLUSION Patients with TRMA must be evaluated for megaloblastic anemia, sensorineural hearing loss, and diabetes mellitus. They must be followed for response of hematologic and diabetic after thiamine therapy. It should be kept in mind that dose of thiamine therapy may be increased according to the clinical response. Genetic counseling should be given.
Collapse
Affiliation(s)
- Nagehan Katipoğlu
- Department of Pediatrics, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Tuba H Karapinar
- Department of Pediatric Hematology and Oncology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Korean Demir
- Department of Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Sultan Aydin Köker
- Department of Pediatric Hematology and Oncology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey.
| | - Özlem Nalbantoğlu
- Department of Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Yılmaz Ay
- Department of Pediatric Hematology and Oncology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Hüseyin A Korkmaz
- Department of Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Yeşim Oymak
- Department of Pediatric Hematology and Oncology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Melek Yıldız
- Department of Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Selma Tunç
- Department of Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Filiz Hazan
- Department of Medical Genetics, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Canan Vergin
- Department of Pediatric Hematology and Oncology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| | - Behzat Ozkan
- Department of Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital, Izmir, Turkey
| |
Collapse
|
46
|
Abstract
In response to toxic stressors, cancer cells defend themselves by mobilizing one or more epidermal growth factor receptor (EGFR) cascades that employ xeroderma pigmentosum-A (XPA) to repair damaged genes. Recent experiments discovered that neurons within the auditory nerve exhibit basal levels of EGFR+XPA co-expression. This finding implied that auditory neurons in particular or neurons in general have the capacity to mobilize an EGFR+XPA defense. Therefore, the current study tested the hypothesis that noise stress would alter the expression pattern of EGFR/XPA within the auditory nerve. Design-based stereology was used to quantify the proportion of neurons that expressed EGFR, XPA, and EGFR+XPA with and without noise stress. The results revealed an intricate neuronal response that is suggestive of alterations to both co-expression and individual expression of EGFR and XPA. In both the apical and middle cochlear coils, the noise stress depleted EGFR+XPA expression. Furthermore, there was a reduction in the proportion of neurons that expressed XPA-alone in the middle coils. However, the noise stress caused a significant increase in the proportion of neurons that expressed EGFR-alone in the middle coils. The basal cochlear coils failed to mobilize a significant response to the noise stress. These results suggest that EGFR and XPA might be part of the molecular defense repertoire of the auditory nerve.
Collapse
Affiliation(s)
- O'neil W Guthrie
- Cell & Molecular Pathology Laboratory, Department of Communication Sciences and Disorders, Northern Arizona University, Flagstaff, Arizona (OWG).,Research Service-151, Loma Linda Veterans Affairs Medical Center, Loma Linda, California (OWG).,Department of Otolaryngology and Head & Neck Surgery, School of Medicine, Loma Linda University Medical Center, Loma Linda, California (OWG)
| |
Collapse
|
47
|
Tighilet B, Dutheil S, Siponen MI, Noreña AJ. Reactive Neurogenesis and Down-Regulation of the Potassium-Chloride Cotransporter KCC2 in the Cochlear Nuclei after Cochlear Deafferentation. Front Pharmacol 2016; 7:281. [PMID: 27630564 PMCID: PMC5005331 DOI: 10.3389/fphar.2016.00281] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 08/16/2016] [Indexed: 12/26/2022] Open
Abstract
While many studies have been devoted to investigating the homeostatic plasticity triggered by cochlear hearing loss, the cellular and molecular mechanisms involved in these central changes remain elusive. In the present study, we investigated the possibility of reactive neurogenesis after unilateral cochlear nerve section in the cochlear nucleus (CN) of cats. We found a strong cell proliferation in all the CN sub-divisions ipsilateral to the lesion. Most of the newly generated cells survive up to 1 month after cochlear deafferentation in all cochlear nuclei (except the dorsal CN) and give rise to a variety of cell types, i.e., microglial cells, astrocytes, and neurons. Interestingly, many of the newborn neurons had an inhibitory (GABAergic) phenotype. This result is intriguing since sensory deafferentation is usually accompanied by enhanced excitation, consistent with a reduction in central inhibition. The membrane potential effect of GABA depends, however, on the intra-cellular chloride concentration, which is maintained at low levels in adults by the potassium chloride co-transporter KCC2. The KCC2 density on the plasma membrane of neurons was then assessed after cochlear deafferentation in the cochlear nuclei ipsilateral and contralateral to the lesion. Cochlear deafferentation is accompanied by a strong down-regulation of KCC2 ipsilateral to the lesion at 3 and 30 days post-lesion. This study suggests that reactive neurogenesis and down-regulation of KCC2 is part of the vast repertoire involved in homeostatic plasticity triggered by hearing loss. These central changes may also play a role in the generation of tinnitus and hyperacusis.
Collapse
Affiliation(s)
- Brahim Tighilet
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260 - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition) - Aix-Marseille Université - Centre National de la Recherche Scientifique Marseille, France
| | - Sophie Dutheil
- Department of Psychiatry, School of Medicine, Yale University, New Haven CT, USA
| | - Marina I Siponen
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260 - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition) - Aix-Marseille Université - Centre National de la Recherche Scientifique Marseille, France
| | - Arnaud J Noreña
- Laboratoire de Neurosciences Intégratives et Adaptatives, UMR 7260 - Comportement, Cerveau, Cognition (Behavior, Brain, and Cognition) - Aix-Marseille Université - Centre National de la Recherche Scientifique Marseille, France
| |
Collapse
|
48
|
Mehta D, Noon SE, Schwartz E, Wilkens A, Bedoukian EC, Scarano I, Crenshaw EB, Krantz ID. Outcomes of evaluation and testing of 660 individuals with hearing loss in a pediatric genetics of hearing loss clinic. Am J Med Genet A 2016; 170:2523-30. [PMID: 27480936 DOI: 10.1002/ajmg.a.37855] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/07/2016] [Indexed: 11/11/2022]
Abstract
Hearing loss is a relatively common condition in children, occurring in approximately 2 out of every 1,000 births with approximately 50% of reported diagnoses having a primary genetic etiology. Given the prevalence and genetic component of hearing loss, coupled with a trend toward early diagnosis with the institution of universal newborn hearing screening, The Genetics of Hearing Loss Clinic was established at The Children's Hospital of Philadelphia to manage the diagnosis, testing, and genetic counseling for individuals and families. This paper described a cohort of 660 individuals with a diagnosis of hearing loss evaluated between July 2008 and July 2015 in the Genetics of Hearing Loss Clinic. To elucidate the cause of hearing loss in this cohort for better management and prognostication, testing included single nucleotide polymorphism chromosomal microarray, hearing loss next generation sequencing panel, and additional clinical tests inclusive of thyroid and renal function studies, temporal bone magnetic resonance imaging, and electrocardiogram. Of those evaluated, most had bilateral sensorineural hearing loss, occurring in 489/660 (74%). Additionally, 612/660 (93%) of patients presented with a nonsyndromic form of hearing loss (no other observed clinical findings at the time of exam), of which pathogenic mutations in GJB2 were most prevalent. Of the individuals with syndromic manifestations (48/660), Usher and Waardenburg syndrome were most commonly observed. A family history of hearing loss (first degree relative) was present in 12.6% of families with available information. Through molecular analyses, clinical examination, and laboratory testing, a definitive etiologic diagnosis was established in 157/660 (23.8%) of individuals. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Devanshi Mehta
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sarah E Noon
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Emily Schwartz
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Alisha Wilkens
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Emma C Bedoukian
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Irene Scarano
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - E Bryan Crenshaw
- Center for Childhood Communication, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Otorhinolaryngology: Head and Neck Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Ian D Krantz
- Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania. .,The Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
| |
Collapse
|
49
|
Rossini BAA, Penido NDO, Munhoz MSL, Bogaz EA, Curi RS. Sudden Sensorioneural Hearing Loss and Autoimmune Systemic Diseases. Int Arch Otorhinolaryngol 2016; 21:213-223. [PMID: 28680488 PMCID: PMC5495599 DOI: 10.1055/s-0036-1586162] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 06/03/2016] [Indexed: 10/25/2022] Open
Abstract
Introduction Several authors have demonstrated the relationship between sudden sensorineural hearing loss (SNHL) and systemic autoimmune diseases (SAD). Immune-mediated SNHL can rarely present as unilateral sudden SNHL and manifests itself in the contralateral ear only after years. It presents clinical relevance for being one of the few SNHL that may be reversible given that early and appropriate treatment is applied. Objective The objective of this study is to describe the clinical presentations and audiological findings from patients with idiopathic sudden SNHL and SAD associated with a probable diagnosis of immune-mediated SNHL. Furthermore, we strive to estimate the prevalence of SAD in patients with sudden SNHL. Methods This is an observational retrospective cohort. We have selected and studied patients with SAD. Revision of available literature on scientific repositories. Results We evaluated 339 patients with sudden SNHL. Among them, 13 (3.83%) patients suffered from SAD. Three patients had bilateral involvement, a total of 16 ears. We evaluate and describe various clinical, epidemiological, and audiological aspects of this sample. Conclusion In our sample of patients with sudden SNHL, the prevalence of SAD was found relevant. The majority had tinnitus and dizziness concomitant hearing loss, unilateral involvement and had experienced profound hearing loss at the time of the installation. In spite of instituted treatment, most cases showed no improvement in audiometric thresholds. Apparently, patients with sudden SNHL and SAD have a more severe initial impairment, higher percentage of bilateral, lower response to treatment, and worse prognosis than patients with sudden SNHL of unknown etiology.
Collapse
Affiliation(s)
| | | | | | | | - Renata Souza Curi
- Department of ENT, Universidade Federal de São Paulo, São Paulo, Brazil
| |
Collapse
|
50
|
Baxter R, Lewis N, Bohrer P, Harrington T, Aukes L, Klein NP. Sudden-Onset Sensorineural Hearing Loss after Immunization: A Case-Centered Analysis. Otolaryngol Head Neck Surg 2016; 155:81-6. [PMID: 27026733 DOI: 10.1177/0194599816639043] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 02/24/2016] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Case reports of sudden sensorineural hearing loss (SSHL) following vaccines have led to concerns that vaccines may rarely cause hearing loss. Because of this concern, we analyzed for an association between SSHL and vaccinations. STUDY DESIGN We used a case-centered method, equivalent to a case control design using immunization dates from all matched members of the population to calculate exposure to vaccines, rather than sampling. SETTING Kaiser Permanente Northern California (KPNC), 2007 to 2013. SUBJECTS AND METHODS We searched KPNC databases from 2007 to 2013 for all first-time diagnoses of SSHL. We used the date of any hearing- or ear-related visit in the 60 days prior to the first SSHL diagnosis as the onset date. Using only SSHL cases immunized in the prior 9 months, we compared the vaccine exposure in several risk intervals prior to onset with the exposure to the same vaccine during the same time period in all KPNC membership, matched to sex and age. RESULTS During the study period, >20 million vaccines were administered at KPNC. In all risk intervals prior to onset of SSHL, we found no evidence of increased risk of immunization compared with matched controls. The odds ratios for vaccination 1 week prior to SSHL were 0.965 (95% confidence interval, 0.61-1.50) for trivalent inactivated influenza vaccine (TIV); 0.842 (0.39-1.62) for tetanus, reduced diphtheria, and reduced acellular pertussis; and 0.454 (0.08-1.53) for zoster vaccine. CONCLUSION A large-scale analysis applying a case-centered method did not detect any association between SSHL and previous receipt of TIV or other vaccines.
Collapse
Affiliation(s)
- Roger Baxter
- Northern California Kaiser Permanente Vaccine Study Center, Oakland, California, USA
| | - Ned Lewis
- Northern California Kaiser Permanente Vaccine Study Center, Oakland, California, USA
| | - Pamela Bohrer
- The Permanente Medical Group, Santa Rosa, California, USA
| | - Theresa Harrington
- CDC, Division of Healthcare Quality Promotion, Immunization Safety Office, Atlanta, Georgia, USA
| | - Laurie Aukes
- Northern California Kaiser Permanente Vaccine Study Center, Oakland, California, USA
| | - Nicola P Klein
- Northern California Kaiser Permanente Vaccine Study Center, Oakland, California, USA
| |
Collapse
|