scholarly journals Hearing and hearing rehabilitation after obliteration of troublesome mastoid cavities

2020 ◽  
Vol 277 (12) ◽  
pp. 3307-3313
Author(s):  
Simon Geerse ◽  
Tim J. M. Bost ◽  
Samira Allagul ◽  
Maarten J. F. de Wolf ◽  
Fenna A. Ebbens ◽  
...  
Keyword(s):  
Hearing Aids ◽  
Revision Surgery ◽  
Residual Disease ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Patient Characteristics ◽  
Ossicular Chain ◽  
Mastoid Cavity ◽  
Hearing Thresholds ◽  
Ossicular Chain Reconstruction

Abstract Purpose The purpose of this study is the evaluation of post-operative hearing threshold after revision surgery and obliteration of troublesome canal wall down mastoidectomy cavities (CWDMCs). The ability to use and tolerate conventional hearing aids (CHAs) was also evaluated. Methods A retrospective chart analysis of 249 patients with chronically draining CWDMCs who underwent revision surgery including obliteration of the mastoid cavity between 2007 and 2017 at the AMC location of the Amsterdam University Medical Centers (Amsterdam UMC) was performed. Patient characteristics, pre- and post-operative Merchant grade, surgical outcomes, pre- and post-operative hearing thresholds, and the ability/necessity to use a CHA or the ability/necessity to use a Bone Conduction Device (BCD) were recorded. Results Dry ears were found in 95% of the total cohort. Residual disease was detected in 1.6% during MRI follow-up with no residual cholesteatoma in the obliterated area. In 3.2% of the patients, recurrent disease was found. A significant improvement in mean air conduction level, mean bone conduction level, and mean air-bone gap (ABG) was found post-operatively (p < 0.05). For all types of ossicular chain reconstruction, a significant improvement in mean Pure Tone Average was observed (p < 0.05). The percentage of patients with an indication for CHA was similar pre- and post-operatively (67% both pre- and post-operatively). The ability to use a CHA improved from 3% pre-operatively to 57% post-operatively (p < 0.001). Conclusion This study shows that revision surgery and obliteration of CWDMCs enable successful CHA rehabilitation post-operatively. Upon this type of surgery, hearing thresholds improve significantly, but the need for rehabilitation with a CHA remains necessary in most cases.

scholarly journals Monitoring of the auditory pathway maturation after early intervention during the first year of life in infants with sensorineural hearing loss

2020 ◽  
Author(s):  
F. Matin ◽  
S. Haumann ◽  
W. Roßberg ◽  
D. Mitovska ◽  
T. Lenarz ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Early Intervention ◽  
Hearing Aids ◽  
Hearing Threshold ◽  
Auditory Pathway ◽  
Auditory Brainstem Responses ◽  
First Year ◽  
Early Therapy ◽  
Hearing Thresholds ◽  
First Year Of Life

Abstract Purpose The objective of this study was to investigate the auditory pathway maturation monitored by auditory brainstem responses (ABR) in infants with hearing loss during the first year of life. ABR were used to estimate hearing thresholds and the effect of early intervention strategies using hearing aids (HA). Methods Click-evoked ABRs were measured in 102 infants aged from 0 to 12 months to determine their individual auditory threshold. Early therapy intervention was recommended before 12 months of age and analyzed. To evaluate the effect of hearing amplification on auditory maturation, different subgroups of infants with moderate hearing loss were analyzed and the auditory pathway maturation was determined based on IPL I–V shortening. Results Overall, 110 ears (54.0% of 204 ears) with mild to profound HL showed threshold changes of 10 dB up to 60 dB in the follow-up ABR testing. HA were prescribed at the age of 3.8 ± 3.9 months. Cochlear implantation (CI) was performed in cases of repeated profound HL at the age of 9.9 months ± 4.5 months. A significant shortening of IPL I–V in all subgroups of infants (with and without risk factors) who received HA was shown and assumed auditory pathway maturation. Conclusion An early intervention using optimally fitted HA influenced auditory pathway maturation and may lead to improvements of hearing thresholds during the first year of life in infants. This study underscores the importance of not only providing HAs to infants, but also controlling for hearing threshold changes ensuring that HAs provide the optimal level of intervention or CI is indicated.

The styloid process in ossicular chain reconstruction

1988 ◽  
Vol 102 (2) ◽  
pp. 136-137 ◽  
Author(s):  
S. B. Ogale ◽  
C. Desouza ◽  
J. Sheode ◽  
K. L. Shah
Keyword(s):  
Bone Conduction ◽  
Chronic Otitis Media ◽  
Ossicular Chain ◽  
Styloid Process ◽  
Long Term Results ◽  
Graft Material ◽  
Ossicular Chain Reconstruction ◽  
One Year

AbstractOur pilot study reports twenty-six cases of resolved chronic otitis media in which the human, cadaveric styloid process was used as an ossicular graft material. A maximum follow-up of one year is presented in this paper. There was no extrusion or rejection of the styloid processes. Hearing improvement with a closure of the air-bone gap to within 10–15 dB. of the pre-operative bone conduction was found in most cases. So far the styloid process has proved to be an ideal ossicular graft though the long-term results are yet to be seen.

scholarly journals Penanganan mikrotia bilateral: laporan kasus berbasis bukti

2014 ◽  
Vol 44 (1) ◽  
pp. 63
Author(s):  
Dini Widiarni Widodo ◽  
Harim Priyono ◽  
Irma Suryati
Keyword(s):  
Hearing Aids ◽  
Gold Standard ◽  
Bone Conduction ◽  
Third Grade ◽  
Evidence Based ◽  
Ear Reconstruction ◽  
Hearing Improvement ◽  
Rib Cartilage ◽  
Plastic Reconstruction ◽  
Hearing Thresholds

Latar Belakang: Mikrotia didefinisikan sebagai daun telinga berukuran kecil dengan insiden sekitar 1 dari 7000-8000 ribu kelahiran, dengan insiden pada satu telinga sekitar empat kali lipat lebih banyak dibanding dua telinga. Rekonstruksi mikrotia merupakan salah satu prosedur cukup sulit pada bidang plastik rekonstruksi. Saat ini, penggunaan tandur tulang rawan iga autologus masih menjadi baku emas untuk rekonstruksi mikrotia. Tujuan: mengingatkan kembali para ahli THT tentang pertimbangan pemilihan rekonstruksi bersamaan pada kasus mikrotia bilateral dengan pencarian literatur berbasis bukti. Kasus: dilaporkan satu kasus mikrotia bilateral derajat 3, dengan hantaran tulang telinga kanan 60 dB, dan hantaran tulang telinga kiri 72,5 dB. Dengan pertimbangan memilih rekonstruksi bersamaan atau bertahap pada kedua telinga dan mengetahui prediksi perbaikan fungsi pendengarannya. Penatalaksanaan: aurikuloplasti tahap 1 dilakukan bersamaan pada kedua telinga. Skor Jahrsdoefer kedua telinga masing-masing 3 dan karena keterbatasan ekonomi dianjurkan menggunakan alat bantu dengar bukan BAHA untuk mengatasi hambatan komunikasi. Kesimpulan: penatalaksanaan mikrotia bilateral di bidang THT tidak hanya mencakup aspek rekonstruksi bentuk namun menekankan fungsi telinga sebagai alat berkomunikasi yang optimal. Kata kunci: mikrotia bilateral, ambang pendengaran, aurikuloplasti. ABSTRACTBackground:Microtia is defined as small sized ear with incidence approximately 1 in 7000-8000 births, which incidents in one ear is 4 times more compared to bilateral ear. Microtia reconstruction is one of difficult procedures in plastic reconstruction field. Recently, the use of rib cartilage autograft is still the gold standard for ear reconstruction. Purpose: to inform otorhinolaryngologist concerning simultaneous ear reconstruction in bilateral microtia case with evidence based method. Case: a third grade bilateral microtia, with the result of bone conduction are 60 dB for right ear dan 72,5 dB for left ear, the consideration to reconstruct both ear simultaneously or gradually, and how to predict the hearing improvement Management: first step of auriculoplasty was done in both ears, with Jahrsdoefer score is 3 for each ear, BAHA is adviceable but due to economic limitation the patients chose hearing aids. Conclusion: Bilateral microtia management in otorhinolaryngology does not only emphasize on ear reconstruction aspects but also to restore ear function as a means of optimal communicating.Keywords: bilateral microtia, hearing thresholds, auriculoplasty.

scholarly journals Examination of Insert Ear Interaural Attenuation (IA)Values in Audiological Evaluations

2016 ◽  
Vol 39 (6) ◽  
pp. 82
Author(s):  
Nebi M Gumus ◽  
Merve Gumus ◽  
Selim Unsal ◽  
Mustafa Yuksel ◽  
Mehmet Gunduz
Keyword(s):  
Healthy Subjects ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Hearing Thresholds ◽  
Bone Conduction Hearing ◽  
Insert Earphones ◽  
Otoscopic Examination

Purpose: The purpose of this study was to evaluate Interaural Attenuation (IA) in frequency base in the insert earphones that are used in audiological assessments. Methods: Thirty healthy subjects between 18-65 years of age (14 female and 16 male) participated in our study. Otoscopic examination was performed on all participants. Audiological evaluations were performed using the Interacoustics AC40 clinical audiometer and ER-3A insert earphones. IA value was calculated by subtracting good ear bone conduction hearing thresholds of the worst airway hearing threshold. Results: In our measuring for 0.125-8.0 kHz frequency were performed in our audiometry device separately for each frequency. IA amount in the results we found in 1000 Hz and below frequencies about 75-110 dB range avarage is 89±5dB, in above 1000 Hz frequencies in 50-95 dB range and avarage it is changed to 69±5dB. Conclusion: According to the obtained findings the quantity of melting in the transition between the ears are increasing with the insert earphones. The insert earphone should be beside supraaural earphone that is routinely used in clinics. Difficult masking applications due to the increase in the value of IA can be easily done with insert earphones.

scholarly journals Objective Estimation of Frequency-Specific Pure-Tone Hearing Thresholds following Bone-Conduction Hearing Aid Stimulation

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Torsten Rahne ◽  
Thomas Ehelebe
Keyword(s):  
Pure Tone ◽  
Auditory Evoked Potentials ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Mixed Hearing Loss ◽  
Hearing Thresholds ◽  
Bone Conduction Hearing ◽  
Highly Correlated ◽  
Fitting In ◽  
Hearing System

Patients suffering from conductive or mixed hearing loss may benefit from bone-conduction hearing systems (BAHS). The amount of amplification provided by the hearing system is selected based on the individual’s sensorineural frequency-specific threshold. With patients who are not able to provide thresholds behaviorally, such as young children, objective methods are required to estimate the unaided and aided hearing threshold and thus the success of the hearing system fitting. In a prospective study with ten adult Baha softband users, aided and unaided frequency-specific thresholds were estimated. Aided thresholds to tone bursts via Baha stimulation were obtained behaviorally and electrophysiologically using cortical auditory evoked potentials (CAEPs) and were compared to pure-tone thresholds using routine clinical audiometry. For all stimulation frequencies, the frequency-specific electrophysiological and behavioral hearing thresholds measured with Baha stimulation were highly correlated and not different. Increased thresholds were observed only with the 0.5 kHz Baha stimulation as compared to the pure-tone audiogram. Objective measurement of frequency-specific hearing thresholds with CAEPs is applicable to BAHS users.

Temporary Increase in Sensorineural Hearing Loss with Hearing Aid Use

1979 ◽  
Vol 88 (1) ◽  
pp. 86-91 ◽  
Author(s):  
H. Patricia Heffernan ◽  
Marsha R. Simons
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Hearing Aids ◽  
Hearing Aid ◽  
Hearing Threshold ◽  
Sensorineural Hearing ◽  
Temporary Increase ◽  
Hearing Aid Use ◽  
Hearing Thresholds ◽  
Power Outputs

Two cases are presented exhibiting temporary increases in sensorineural hearing loss following hearing aid use. Data suggesting this correlation are shown. There were no contributing middle ear problems during the period surveyed. The most significant changes in hearing thresholds were at frequencies 1000 and 2000 Hz. The use of different hearing aids, with decreased maximum power outputs, was not found to have similar effects on hearing threshold levels. A scheduling regime is recommended for introducing any new hearing aid to a child.

scholarly journals Vibration direction sensitivity of the cochlea with bone conduction stimulation in guinea pigs

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mingduo Zhao ◽  
Anders Fridberger ◽  
Stefan Stenfelt
Keyword(s):  
Guinea Pig ◽  
Round Window ◽  
Bone Conduction ◽  
Three Dimensional ◽  
Hearing Threshold ◽  
Laser Doppler Vibrometer ◽  
Vibration Direction ◽  
Velocity Magnitude ◽  
Hearing Thresholds ◽  
Direction Sensitivity

AbstractSound and vibrations that cause the skull bone to vibrate can be heard as ordinary sounds and this is termed hearing by bone conduction (BC). Not all mechanisms that causes a skull vibration to result in BC hearing are known, and one such unknown is how the direction of the vibration influences BC hearing. This direction sensitivity was investigated by providing BC stimulation in five different directions at the vertex of the guinea pig skull. The hearing thresholds for BC stimulation was obtained in the frequency range of 2 to 20 kHz by measurements of compound action potential. During the stimulation by BC, the vibration of the cochlear promontory was measured with a three-dimensional laser Doppler vibrometer resulting in a set of unique three-dimensional velocity magnitude combinations for each threshold estimation. The sets of three-dimensional velocity magnitude at threshold were used to investigate nine different predictors of BC hearing based on cochlear promontory velocity magnitudes, six single direction (x, y and z directions in isolation, the normal to the stapes footplate, the oval to round window direction, and the cochlear base to apex direction), one linear combination of the three dimension velocity magnitudes, one square-rooted sum of the squared velocity magnitudes, and one sum of the weighted three dimensional velocity magnitudes based on a restricted minimum square error (MSE) estimation. The MSE gave the best predictions of the hearing threshold based on the cochlear promontory velocity magnitudes while using only a single direction gave the worst predictions of the hearing thresholds overall. According to the MSE estimation, at frequencies up to 8 kHz the vibration direction between the right and left side gave the greatest contribution to BC hearing in the guinea pig while at the highest frequencies measured, 16 and 20 kHz, the anteroposterior direction of the guinea pig head gave the greatest contribution.

Clinical Assessment of Ossicular Mobility by a Ceramic Vibrator Designed for Implantable Hearing AIDS

1986 ◽  
Vol 95 (4) ◽  
pp. 323-326 ◽  
Author(s):  
Kiyofumi Gyo ◽  
Naoaki Yanagihara
Keyword(s):  
Hearing Aids ◽  
Piezoelectric Ceramic ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Middle Ear Surgery ◽  
Ear Surgery ◽  
Hydroxyapatite Ceramic ◽  
Bone Conduction Threshold ◽  
Implantable Hearing Aids ◽  
Vibration Threshold

Ossicular mobility was assessed by direct coupling of a piezoelectric ceramic vibrator to the ossicles during middle ear surgery. The sites excited were 1) body of the incus, 2) head of the stapes, and 3) footplate of the stapes through a hydroxyapatite ceramic strut. The threshold of the vibratory hearing was determined by the patient's response as a minimum audition, and the vibration threshold was obtained by subtracting the preoperative bone conduction threshold from the vibratory hearing threshold. The results were analyzed by the state of hearing after the operation, which revealed that a patient with a good vibration threshold during the operation had a tendency to get good postoperative hearing. This may mean that postoperative hearing can be predicted to some extent during the operation by the measurement of ossicular mobility.

scholarly journals Experimental middle ear surgery in rabbits: a new approach for reconstructing the ossicular chain

2009 ◽  
Vol 43 (2) ◽  
pp. 198-204 ◽  
Author(s):  
M Stieve ◽  
H J Hedrich ◽  
R D Battmer ◽  
P Behrens ◽  
P Müller ◽  
...  
Keyword(s):  
Middle Ear ◽  
Bone Conduction ◽  
Hearing Threshold ◽  
Ossicular Chain ◽  
Ceramic Materials ◽  
Middle Ear Surgery ◽  
Electric Response ◽  
Hearing Level ◽  
Erbium:Yag Laser ◽  
Significant Difference

This experimental animal study aimed at evaluating a new prosthesis to replace the ossicular chain; we developed a new technique for surgical implantation into the middle ear of rabbits. The rabbit middle ear is, owing to the relative anatomical dimensions involved, an ideal environment for implantation procedures involving the ossicles, as the surgical conditions are similar to those of the human middle ear. This study included a total of 34 approximately six-month-old female white rabbits (New Zealand) weighing between 3.2 and 4.4 kg. The implants used were constructed of ceramic materials (titania, TiO2) of various pore sizes. Directly prior to implanting the total ossicular reconstruction prostheses (TORPs), as well as at 28, 84 and 300 days after implantation, electric response audiometry was used to determine the hearing thresholds of the animals (bone conduction; click stimulus nHL). An erbium:YAG laser was used to excise the original ossicular chain. Following implantation, we were unable to detect any stenosis of the outer ear canal or perforation of the tympanic membrane. The conductive hearing threshold was in the range of 4.21 ± 6.68 dB nHL ( n = 131). The hearing level showed no significant difference before and after surgery ( P < 0.05).

scholarly journals Stapes Surgery for Profound Hearing Loss Secondary to Otosclerosis

2019 ◽  
Vol 98 (5) ◽  
pp. 273-278
Author(s):  
Louis Dwyer-Hemmings ◽  
Joseph G. Manjaly ◽  
Robert Nash ◽  
Abir Mukherjee ◽  
Jeremy A. Lavy
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Hearing Threshold ◽  
Life Quality ◽  
Primary Outcome Measure ◽  
Stapes Surgery ◽  
Patient Questionnaire ◽  
Profound Hearing Loss ◽  
Hearing Thresholds ◽  
Glasgow Benefit Inventory

The objective of this study is to evaluate stapes surgery in patients with otosclerosis and “profound” hearing loss. This means they meet hearing threshold criteria for cochlear implantation (CI). We performed a retrospective study and patient questionnaire. The results from 33 patients (35 ears) were recorded (mean age: 63.6, range: 40-85). The primary outcome measure was hearing thresholds recorded before and after surgery at 0.5, 1, 2, 3, and 4 kHz. Hearing thresholds at 2 and 4 kHz were also analyzed. Glasgow Benefit Inventory (GBI) was used in 21 patients to assess life quality changes. Hearing thresholds improved in 80% of ears (mean improvement, 26.3 dB), were unchanged in 11.4%, and worsened in 8.6%. Mean GBI score was +20.7. Hearing aid use decreased in 23.8% and ceased in 28.6%. One patient subsequently underwent CI. For patients with profound otosclerosis, stapes surgery provides a quantitative improvement in hearing thresholds and improvement in quality of life, with reduced reliance on hearing aids. This avoids CI, auditory rehabilitation, and a change in quality and tonality of sound.

Sign in / Sign up

Export Citation Format

Share Document