Relationship between conductive hearing loss and maxillary constriction

AbstractObjective:To evaluate the relationship between conductive hearing loss and maxillary constriction.Method:A total of 120 people, aged from 7 to 40 years, who were referred to an audiologist when taking out health insurance or for school pre-registration check-up, were selected for this study. A total of 60 participants who had hearing threshold levels greater than 15 dB in both ears were chosen as the conductive hearing loss group. The remaining 60, with normal hearing thresholds of less than 15 dB, were used as the control group. All participants were referred to an orthodontic clinic. Participants who had a posterior crossbite and high palatal vault were considered to suffer from maxillary constriction.Results:There were no significant differences between the sex ratios and mean ages of the groups. However, participants with conductive hearing loss were 3.5 times more likely than controls to suffer from maxillary constriction.Conclusion:Patients who suffer from conductive hearing loss are likely to show a maxillary abnormality when examined by an orthodontist.

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Significance of Pseudo-conductive Hearing Loss and Positional Nystagmus on Perilymphatic Fistula: Are they related to third window effects?

Clinical and Experimental Otorhinolaryngology ◽

10.21053/ceo.2020.01942 ◽

2021 ◽

Author(s):

Jong Sei Kim ◽

Se-Eun Son ◽

Min Bum Kim ◽

Young Sang Cho ◽

Won-Ho Chung

Keyword(s):

Hearing Loss ◽

Clinical Features ◽

Conductive Hearing Loss ◽

Hearing Threshold ◽

Positional Nystagmus ◽

Horizontal Semicircular Canal ◽

Perilymphatic Fistula ◽

The Relationship ◽

Conductive Hearing ◽

Lower Frequencies

Objectives. Clinical presentation is critical to identify suspected perilymphatic fistula (PLF). To explain characteristic of PLF, it was hypothesized that a third window lesion might be involved in the pathomechanism. The purpose of this study is to investigate clinical features in PLF and figure out the relationship of third window effect and PLF. Methods. Sixty patients underwent surgical exploration under suspicion of PLF and reinforecmenet of oval window and round window was performed. Clinical features including demographics, pure tone audiometry (PTA), and videonystagmography (VNG) were evaluated preoperatively and 1 month after operation. Surgical outcomes were analyzed according to the improvement of hearing and vestibular symptoms and signs. The conductive components of PTA (air-bone gap (ABG)) were measured, and the relationship between ABG closure after surgery and hearing improvement was analyzed. In addition, the postoperative subjective dizziness was assessed by interview in clinic. The change of positional nystagmus was analyzed according to ABG closure and hearing improvement.Results. ABG at lower frequencies (LFABG, 250 Hz, 500 Hz, 1,000 Hz) was present in 27 patients (45%). Postoperatively, the PTA was significantly improved after surgical repair. Among the patients with preoperative LFABG (n=27), 15 (55.5%) showed postoperative ABG closure and significant improvement in PTA at all frequencies compared with the patients without ABG closure (P=0.012). The subjective dizziness improved in 56 patients (91.8%). Positional nystagmus was found in 45 of 49 patients. Multiple canal involvement was more common than single canal (67% vs. 33%). The horizontal semicircular canal was most commonly involved, followed by the posterior and anterior canals. Postoperatively, the positional nystagmus disappeared, or the number of involved canals decreased in 22 of 34 (64.7%) patients. Conclusions. Pseudo-conductive hearing loss at the lower frequencies and positional nystagmus originating from multiple semicircular canals were common findings in PLF. Surgical reinforcement of the RW and OW improved hearing threshold accompanied by closure of ABG. The third window lesion might explain these clinical features that indicate PLF.

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Comparisons of hearing threshold changes in male workers with unilateral conductive hearing loss exposed to workplace noise: a retrospective cohort study for 8 years

Annals of Occupational and Environmental Medicine ◽

10.1186/s40557-016-0132-1 ◽

2016 ◽

Vol 28 (1) ◽

Cited By ~ 1

Author(s):

Sang Jin Park ◽

Joo Hyun Sung ◽

Chang Sun Sim ◽

Seok Hyeon Yun ◽

Jeong Han Yeom ◽

...

Keyword(s):

Hearing Loss ◽

Cohort Study ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Conductive Hearing Loss ◽

Hearing Threshold ◽

Conductive Hearing ◽

Workplace Noise ◽

Male Workers

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Comparative study between over underlay with classical underlay techniques of tympanoplasty

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20201687 ◽

2020 ◽

Vol 6 (5) ◽

pp. 918

Author(s):

Prashanth Kudure Basavaraj ◽

Manjunatha H. Anandappa ◽

Veena Prabhakaran ◽

Nishtha Sharma ◽

Shreyas Karkala

Keyword(s):

Hearing Loss ◽

Informed Consent ◽

Conductive Hearing Loss ◽

Hearing Threshold ◽

Chronic Otitis Media ◽

Success Rates ◽

Hearing Improvement ◽

Group A ◽

Group B ◽

Conductive Hearing

Background: The objective of the study was to compare the over underlay tympanoplasty technique with classical underlay tympanoplasty in terms of hearing impairment, graft acceptance and complications.Methods: 60 patients of chronic otitis media, mucosal, inactive, aged between 16-60 years who presented to ENT OPD with small, medium, large and subtotal perforations having mild to moderate conductive hearing loss were included in the study. After taking informed consent, patients were randomly divided into 2 groups containing 30 patients each. In group A, graft was placed medial to the handle of malleus and medial to the annulus (underlay technique), while in group B, graft was placed lateral to the handle of malleus and medial to the annulus (over underlay technique). Both groups were reviewed after 6 months. Pre-operative and post-operative air bone gap were compared. Surgery was considered successful based on post-operative graft uptake, hearing improvement and maintenance of middle ear space. Results: In group A, re-perforation was seen in 8 cases (26.7%) whereas only 3 cases (10%) in group B had re-perforation. Medialization was noted among 4 patients in group A (13.3%), and was absent in group B. Lateralization was absent in both the groups. Post-operative hearing threshold in group A was 6.2±4.56 dB and in group B was 11.45±7.38 dB.Conclusions: Over underlay tympanoplasty is a safer technique as compared to classical underlay, showing lower rates of re-perforation or medialization and a significant improvement in hearing. Hence over-underlay is an effective method, having higher success rates.

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Correlation between Intraoperative Ossicular Status and Conductive Hearing Loss Degree among Chronic Suppurative Otitis Media Patients in Dr Mohammad Hoesin General Hospital Palembang

BioScientia Medicina ◽

10.32539/bsm.v5i4.409 ◽

2021 ◽

Vol 5 (4) ◽

pp. 1187-1198

Author(s):

Rizandiny ◽

Ahmad Hifni ◽

Erial Bahar ◽

Abla Ghanie

Keyword(s):

Hearing Loss ◽

Otitis Media ◽

Conductive Hearing Loss ◽

Hearing Threshold ◽

Chronic Suppurative Otitis Media ◽

Observational Research ◽

Strong Positive Correlation ◽

Suppurative Otitis Media ◽

Positive Correlation ◽

Conductive Hearing

Background: Chronic suppurative otitis media (CSOM) is a chronic inflammation of the mucosa and periosteum of the middle ear and mastoid cavity that defined as a perforated tympanic membrane with persistent drainage for more than 2 months. Preoperative hearing threshold and air bone gap (ABG) assessment are expected to predict the ossicular status which can only be ascertained intraoperatively. This study aimed to determine the correlation between intra-operative ossicular status and the degree of conductive hearing loss assessed based on the hearing threshold and average ABG among CSOM patients in RSUP Dr. Mohammad Hoesin Palembang. Methods: Observational research using a cross sectional design. The data were collected using medical record on 64 subjects with a diagnosis of CSOM who underwent mastoidectomy surgery at Dr. Mohammad Hoesin Hospital Palembang for the period of March 2019 to June 2021. Results: From 64 samples conducted in the study, the average ossicular status score in CSOM patients was 1.84 ± 1.48, with the highest group scoring 0 being the malleus incus and intact stapes as many as 21 patients (31.3%). There was a strong positive correlation between hearing threshold scores and intra-operative ossicular status scores (p<0.005, R=0.5) and there was a strong positive correlation between ABG scores and intra-operative ossicular status scores (p <0.005, R=0.6). From the linear regression test, the most influential in predicting intra-operative ossicular status scores were gender, hearing threshold value, ABG value, and the presence of cholesteatoma Conclusions: There is a significant relationship between intra-operative ossicular status and the degree of conductive hearing loss in CSOM patients.

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Prevalence of Hearing Loss, and Middle Ear Disease in 1351 School Age Children in Mekelle, Ethiopia

Annals of Otology Rhinology & Laryngology ◽

10.1177/0003489420967708 ◽

2020 ◽

pp. 000348942096770

Author(s):

Betelhem Birhanu ◽

Abel Shimeles ◽

Filmawit Gebremeskel ◽

Gabrielle Cager ◽

Miriam Redleaf

Keyword(s):

Hearing Loss ◽

Conductive Hearing Loss ◽

School Age Children ◽

Northern Ethiopia ◽

School Age ◽

Level Of Evidence ◽

Hearing Thresholds ◽

Middle Ear Disease ◽

Conductive Hearing ◽

Tympanic Membranes

Objectives: The objective of this study was to begin to measure the prevalence of elevated hearing thresholds in Ethiopia, with audiometric equipment, including bone oscillators and tympanometers. To that end Ethiopian nationals were trained in audiometric techniques to obtain sensorineural hearing loss (SNHL) and conductive hearing loss (CHL) rates in school age children. Methods: Five mainstreamed public grade schools in northern Ethiopia were the sites for audiometry campaigns examining 1351 children and testing them with behavioral audiometry. Results: Seven percent of students had SNHL > 20 dB in at least 1 frequency in at least 1 ear, and 0.6% of ears had SNHL > 50 dB. Eighteen percent8% of students had CHL > 20 dB in 1 or both ears. The frequency with the highest incidence of elevated pure tone thresholds was at 8000 Hz. Seven percent of students had an air bone gap at 2000 and/or 4000 Hz of at least 15 dB. Air bone gap is not obtained at 8000 Hz. There were 22 perforated tympanic membranes in 17 children (0.8% of tympanic membranes, 1% of students). Conclusion: This study gives a baseline for the prevalence of hearing loss in school age children in mainstreamed northern Ethiopian schools. It is the first of its kind and perhaps can help in estimated hearing health needs there. Level of Evidence: 2

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A Start Codon Variant in NOG Underlies Symphalangism and Ossicular Chain Malformations Affecting Both the Incus and the Stapes

Case Reports in Genetics ◽

10.1155/2019/2836263 ◽

2019 ◽

Vol 2019 ◽

pp. 1-5

Author(s):

Nathan R. Lindquist ◽

Eric N. Appelbaum ◽

Anushree Acharya ◽

Jeffrey T. Vrabec ◽

Suzanne M. Leal ◽

...

Keyword(s):

Hearing Loss ◽

Conductive Hearing Loss ◽

Ossicular Chain ◽

Start Codon ◽

Imaging Data ◽

Hearing Thresholds ◽

Stapes Footplate ◽

Multiple Abnormalities ◽

Protein Variants ◽

Conductive Hearing

We performed exome sequencing to evaluate the underlying molecular cause of a patient with bilateral conductive hearing loss due to multiple ossicular abnormalities as well as symphalangism of the fifth digits. This leads to the identification of a novel heterozygous start codon variant in the NOG gene (c.2T>C:p.Met1?) that hinders normal translation of the noggin protein. Variants in NOG lead to a spectrum of otologic, digit, and joint abnormalities, a combination suggested to be referred to as NOG‐related‐symphalangism spectrum disorder (NOG‐SSD). Conductive hearing loss from such variants may stem from stapes footplate ankylosis, fixation of the malleoincudal joint, or fixation of the incus short process. In this case, the constellation of both stapes and incus fixation, an exceptionally tall stapes suprastructure, thickened long process of the incus, and enlarged incus body was encountered, leading to distinct challenges during otologic surgery to improve hearing thresholds. This case highlights multiple abnormalities to the ossicular chain in a patient with a start codon variant in NOG. We provide detailed imaging data on these malformations as well as surgical considerations and outcomes.

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Audiological Performance of ADHEAR Systems in Simulated Conductive Hearing Loss: A Case Series with a Review of the Existing Literature

Audiology Research ◽

10.3390/audiolres11040048 ◽

2021 ◽

Vol 11 (4) ◽

pp. 537-546

Author(s):

Enrico Muzzi ◽

Valeria Gambacorta ◽

Ruggero Lapenna ◽

Giulia Pizzamiglio ◽

Sara Ghiselli ◽

...

Keyword(s):

Hearing Loss ◽

Conductive Hearing Loss ◽

Bone Conduction ◽

Free Field ◽

Hearing Threshold ◽

Case Series ◽

Binaural Hearing ◽

Bone Conduction Implant ◽

Conductive Hearing ◽

Loudness Summation

A new non-invasive adhesive bone conduction hearing device (ABCD) has been proposed as an alternative solution for reversible bilateral conductive hearing loss in recurrent or long-lasting forms of otitis media with effusion (OME) in children that cannot undergo surgical treatment. Our aim was to assess the effectiveness of ABCD in children with OME. Twelve normal-hearing Italian-speaking volunteers, in whom a conductive hearing loss was simulated, participated in the study. The free-field average hearing threshold was determined and, to evaluate binaural hearing skills, loudness summation and the squelch effect were assessed. Five conditions were tested: (1) unaided without earplugs, (2) unaided with bilateral earplugs, (3) aided right ear with bilateral earplugs, (4) aided left ear with bilateral earplugs, and (5) bilateral aid with bilateral earplugs. Post-hoc analysis showed a significant statistical difference between plugged, unplugged, and each aided condition. The main results were a better loudness summation and a substantial improvement of the squelch effect in the bilaterally aided. Our results suggest that ABCD is a valid treatment for patients with conductive hearing loss that cannot undergo bone conduction implant surgery. It is also important to consider bilateral aids in order to deal with situations in which binaural hearing is fundamental.

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Monitoring of conductive hearing loss due to because of eustachian tube dysfunction preservative treated with the Otovent pneumotherapy method.

Journal of Medical Science ◽

10.20883/jms.2018.302 ◽

2018 ◽

Vol 87 (3) ◽

pp. 133-137

Author(s):

Małgorzata Nowak ◽

Beata Wolnowska ◽

Alicja Sekula

Keyword(s):

Hearing Loss ◽

Eustachian Tube ◽

Research Group ◽

Pure Tone ◽

Conductive Hearing Loss ◽

Pure Tone Audiometry ◽

Control Group ◽

Tube Obstruction ◽

Before And After ◽

Conductive Hearing

INTRODUCTION. A conductive hearing loss is a very common problem in childhood. It is possible to indicate many reasons for the problem, but most of the times it is caused by the infectious process, as well as the typical adenoid hypertrophy in children. Very often this disease is associated with obstruction of the eustachian tube.OBJECTIVE. In this study, the authors present the results of the hearing tests of patients who underwent the treatment of the eustachian tube obstruction by pneumotherapy with otovent. The aim of the work was to monitor the effectiveness of this method of OME treatment.RESEARCH GROUP AND METHODOLOGY. The research group consisted of 54 children aged 4 to 15 years, including 23 girls and 31 boys. The control group consisted of 16 children. Pure tone audiometry and impedance audiometry were performed before and after the therapy, for all of the participants.RESULTS. Obtained results of the study showed improvement in hearing in children correctly using the Otovent set. Hearing improvement was recorded both in the results of pure tone audiometry and impedance audiometry.CONCLUSIONS. The obtained results showed the effectiveness of the pneumotherapy method. In the case of the research group, 81.4% of children achieved the auditory norm (44 people). In the case of the control group, after a fixed period of application of the Otovent set, this value was 0%. The intergroup comparative analysis clearly shows that the research group obtained significantly better results within all of the parameters assessed, than the control group.

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Association between Ocular Pseudoexfoliation and Sensorineural Hearing Loss

Journal of Ophthalmology ◽

10.1155/2014/825936 ◽

2014 ◽

Vol 2014 ◽

pp. 1-4 ◽

Cited By ~ 2

Author(s):

Nandini Vijaya Singham ◽

Mimiwati Zahari ◽

Mohammadreza Peyman ◽

Narayanan Prepageran ◽

Visvaraja Subrayan

Keyword(s):

Hearing Loss ◽

Sensorineural Hearing Loss ◽

Hearing Threshold ◽

Pure Tone Audiometry ◽

The Body ◽

Sensorineural Hearing ◽

Control Group ◽

Speech Comprehension ◽

Hearing Thresholds ◽

Significant Difference

Background. Our study aimed to investigate an association between ocular pseudoexfoliation (PXF) and sensorineural hearing loss (SNHL) and to compare them with age and sex matched controls without pseudoexfoliation.Method. This was a case-control study of 123 patients which included 68 cases with PXF (at least one eye) and 55 controls without pseudoexfoliation. Pure-tone audiometry (PTA) was done for these patients at sound frequencies taken as important for speech comprehension, that is, 250 Hertz (Hz), 500 Hz, 1000 Hz, and 2000 Hz.Results. There were 41 patients with pseudoexfoliation syndrome (PXE) and 27 with pseudoexfoliative glaucoma (PXEG). The majority of patients with hearing loss (60%;n=51) were PXF patients and the remaining 40%(n=34)were controls. Below average hearing thresholds were significantly higher in the pseudoexfoliation group compared to the control group (P=0.01; odds ratio (OR), 3.00; 95% confidence interval (CI), 1.25–7.19). However, there was no significant difference in the mean hearing threshold levels between the three groups (PXE, PXEG, and controls) in either ear (ANOVA, right ear:P=0.46and left earP=0.36).Conclusion. Our study found an association between PXF and SNHL, confirming that PXF can involve organs in the body other than the eye.

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