Vestibular Schwannoma Resection with Ipsilateral Simultaneous Cochlear Implantation in Patients with Normal Contralateral Hearing

2016 ◽  
Vol 21 (5) ◽  
pp. 286-295 ◽  
Author(s):  
Mario Sanna ◽  
María del Mar Medina ◽  
Aldin Macak ◽  
Gianluca Rossi ◽  
Valerio Sozzi ◽  
...  
Keyword(s):  
Sound Localization ◽  
Vestibular Schwannoma ◽  
Cochlear Implantation ◽  
Pure Tone ◽  
Cochlear Nerve ◽  
Hearing Results ◽  
Pure Tone Audiogram ◽  
Translabyrinthine Approach ◽  
The Mean ◽  
A Prospective Study

Objective: To report the hearing results of cochlear implantation simultaneous to vestibular schwannoma (VS) resection by means of a translabyrinthine approach in patients with normal contralateral hearing. Methods: This was a prospective study including adults with sporadic VS. Tumors were resected by means of a modified translabyrinthine approach with preservation of the cochlear nerve. Results: A total of 13 patients underwent cochlear implantation. At 14 months, the mean pure-tone audiogram was 56 dB. The mean speech recognition was 80%. Cochlear implantation provides monaural and binaural benefits in all the conditions tested, including sound localization. Conclusions: Cochlear implantation can be safely performed simultaneously to VS resection with satisfactory hearing results provided that the cochlear nerve is anatomically intact.

Ipsilateral Cochlear Implantation After Cochlear Nerve Preserving Vestibular Schwannoma Surgery in Patients With Neurofibromatosis Type 2

2014 ◽  
Vol 35 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Simon Kingsley Wickham Lloyd ◽  
Fergal John Glynn ◽  
Scott Alexander Rutherford ◽  
Andrew Thomas King ◽  
Deborah Jane Mawman ◽  
...  
Keyword(s):  
Vestibular Schwannoma ◽  
Cochlear Implantation ◽  
Neurofibromatosis Type ◽  
Neurofibromatosis Type 2 ◽  
Cochlear Nerve

ROLE OF VESTIBULAR EVOKED MYOGENIC POTENTIALS (VEMP) IN PREDICTING THE OUTCOME OF STAPEDOTOMY- A PROSPECTIVE OBSERVATIONAL STUDY

2021 ◽  
pp. 60-62
Author(s):  
Thirunavukarasu Palanisamy ◽  
Sathishkumar Jayagandhi ◽  
Somu Lakshmanan ◽  
Ajaykumar Prabakar ◽  
Arthi Arun ◽  
...  
Keyword(s):  
Observational Study ◽  
Pure Tone ◽  
Tertiary Care ◽  
Linear Acceleration ◽  
Vestibular Evoked Myogenic Potentials ◽  
Care Hospital ◽  
Non Invasive ◽  
Pure Tone Audiogram ◽  
The Mean

Vestibular evoked myogenic potentials (VEMP) is an objective and non-invasive measure of saccule function that primarily respond to linear acceleration in any direction. Stapedotomy is a procedure done for otosclerosis to improve hearing. The aim of this study was to correlate the VEMPresults with pure tone audiogram pre- and post- stapedotomy in otosclerotic patients. Aprospective observational study was conducted from 2017-2020 in a tertiary care hospital of south India. Patients who underwent stapedotomy for otosclerosis and satised the study criteria were included. Atotal of 22 patients were included in the study. All patients underwent pure tone audiogram (PTA) and VEMP preoperatively and postoperatively. The results were compared and analysed. The mean pre-operative and post-operative ABG were 26.32±9.36 dB and 18.10 ±8.06 dB respectively. (P=0.001). There was no signicant change in VEMP positivity rates, latency and amplitude. The results showed that there was no correlation between the PTAvalues and VEMPpositivity rate in otosclerotic patients. The VEMPpositivity rate was also not affected signicantly by stapedotomy. Based on above ndings we conclude that stapedotomy is a safe and effective procedure with no signicant inner ear trauma.

scholarly journals Effect of intratympanic dexamethasone injection in sudden idiopathic sensorineural hearing loss

2016 ◽  
Vol 2 (4) ◽  
pp. 258
Author(s):  
K. Mallikarjuna Swamy ◽  
Arati Ganiger
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Pure Tone ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Hearing Improvement ◽  
Pure Tone Audiogram ◽  
Intravenous Steroid ◽  
A Prospective Study ◽  
Intratympanic Dexamethasone

<p class="abstract"><strong>Background:</strong> The aim of this study is to assess the effect of intratympanic dexamethasone injection (ITDI) in patients with idiopathic sudden sensorineural hearing loss (ISSNHL).</p><p><strong>Methods:</strong> A prospective study was conducted on 40 patients refractory to intravenous steroid therapy between May 2012 to March 2014. Intratympanic dexamethasone injection was given every week for 3 consecutive weeks. Hearing was assessed by performing pure tone audiogram before every ITDI and also 1 week after the completion of treatment.</p><p><strong>Results: </strong>Hearing improvement was seen in 27 out of the 40 cases (68%).<strong></strong></p><p class="abstract"><strong>Conclusions:</strong> Intratympanic dexamethasone significantly improves the prognosis of ISSNHL and is a safe, inexpensive and effective treatment in ISSNHL.</p>

scholarly journals A novel scoring system for vestibular schwannomas to identify candidacy for cochlear implantation

2021 ◽  
Author(s):  
Valerie Dahm ◽  
Ursula Schwarz-Nemec ◽  
Alice Auinger ◽  
Erdem Yildiz ◽  
Christian Matula ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Brain Stem ◽  
Vestibular Schwannoma ◽  
Cochlear Implantation ◽  
Scoring System ◽  
Cochlear Nerve ◽  
Vestibular Schwannomas ◽  
Open Set ◽  
Brain Stem Response ◽  
New Scoring

Objectives Here we present the audiometric outcomes of patients undergoing vestibular schwannoma resection and cochlear implantation. We additionally reviewed preoperative audiometric and radiological data, with the aim of developing a new scoring system to identify suitable patients for this treatment course. Methods After translabyrinthine vestibular schwannoma resection, cochlear nerve conduction was evaluated using intraoperative electrically evoked brain stem response audiometry. Patients with positive results received a cochlear implant. We evaluated the preoperative audiometric results, and vestibular schwannoma size and extension, to develop a new scoring system to identify patients with higher likelihood of nerve integrity after tumor removal and subsequent cochlear implantation. Results Seventeen patients with unilateral sporadic vestibular schwannomas underwent translabyrinthine resection, of whom ten received a cochlear implant. Ten patients are daily cochlear implant users. The mean word recognition score ss 28% at 65 dB, and 52% at 80 dB. Nine of the ten patients have open-set speech understanding. All patients whose vestibular schwannoma did not make contact with the modiolus were able to receive a cochlear implant, compared to none of the patients with modiolus infiltration. Tumor size alone did not predict the probability of sparing the cochlear nerve. Conclusions Simultaneous translabyrinthine vestibular schwannoma excision and cochlear implantation based on intraoperative electrically evoked brain stem response audiometry measurements is a good option for hearing rehabilitation. Preoperative exact assessment of the vestibular schwannoma extension, audiometric testing, and promontory stimulation electrically evoked brain stem response audiometry could improve preoperative patient selection and predict the possibility of cochlear implantation.

scholarly journals Dynamic Postural Stability and Hearing Preservation after Cochlear Implantation

2018 ◽  
Vol 23 (4) ◽  
pp. 222-228
Author(s):  
Christof Buhl ◽  
Dmitri Artemiev ◽  
Flurin Pfiffner ◽  
Jaap Swanenburg ◽  
Dorothe Veraguth ◽  
...  
Keyword(s):  
Cochlear Implantation ◽  
Postural Stability ◽  
Pure Tone ◽  
Hearing Preservation ◽  
Residual Hearing ◽  
Significant Difference ◽  
Before And After ◽  
The Mean ◽  
Functional Gait ◽  
Dynamic Postural Stability

Objectives: (1) To assess dynamic postural stability before and after cochlear implantation using a functional gait assessment (FGA). (2) To evaluate the correlation between loss of residual hearing and changes in dynamic postural stability after cochlear implantation. Methods: Candidates for first-sided cochlear implantation were prospectively included. The FGAs and pure-tone audiograms were performed before and 4–6 weeks after cochlear implantation. Results: Twenty-three subjects were included. Forty-eight percent (n = 11) showed FGA performance below the age-referenced norm before surgery. One subject had a clinically relevant decrease of the FGA score after cochlear implantation. No significant difference between the mean pre- and postoperative FGA scores was detectable (p = 0.4). Postoperative hearing loss showed no correlation with a change in FGA score after surgery (r = 0.3, p = 0.3, n = 16). Conclusion: Single-sided cochlear implantation does not adversely affect dynamic postural stability 5 weeks after surgery. Loss of functional residual hearing is not correlated with a decrease in dynamic postural stability.

Role of stapes surgery in improving hearing loss caused by otosclerosis

2006 ◽  
Vol 121 (5) ◽  
pp. 438-443 ◽  
Author(s):  
M R Marchese ◽  
G Paludetti ◽  
E De Corso ◽  
F Cianfrone
Keyword(s):  
Pure Tone ◽  
Functional Results ◽  
Oval Window ◽  
Stapes Surgery ◽  
Hearing Results ◽  
Pure Tone Average ◽  
Group A ◽  
The Mean ◽  
Group B ◽  
Operative Assessment

The aim of our study was to evaluate the functional results of stapes surgery and to compare the effectiveness of small fenestra stapedotomy with that of total stapedectomy in improving hearing in patients affected by otosclerosis.Three hundred and fifty-seven consecutive ears, in 265 patients affected by otosclerosis, underwent surgery. All cases underwent either primary small fenestra stapedotomy (group A, 196/357, 54.91 per cent) or stapedectomy (group B, 161/357, 45.09 per cent). After surgery, 256/357 (71.71 per cent) cases showed a 0–20 dB gap. There were no significant differences in hearing results between the two groups at either early or late post-operative assessment. The mean post-operative pure tone average and air–bone gap results were slightly greater for group B than for group A, at both early and late post-operative assessments, but these differences were not statistically significant. Therefore, in group A, the mean pure tone average at 4 kHz significantly improved, from 56.60 to 47.66 dB at early post-operative assessment and to 52.98 dB at late post-operative assessment.Our study suggests that the technique of microtomy of the oval window is able to improve hearing results especially at high frequencies.

scholarly journals Does Attempt at Hearing Preservation Microsurgery of Vestibular Schwannoma Affect Postoperative Tinnitus?

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Martin Chovanec ◽  
Eduard Zvěřina ◽  
Oliver Profant ◽  
Zuzana Balogová ◽  
Jan Kluh ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Vestibular Schwannoma ◽  
Hearing Preservation ◽  
Cochlear Nerve ◽  
Hearing Level ◽  
Eighth Cranial Nerve ◽  
A Prospective Study ◽  
Tumor Consistency ◽  
Neurovascular Structures ◽  
New Onset

Background. The aim of this study was to analyze the effect of vestibular schwannoma microsurgery via the retrosigmoid-transmeatal approach with special reference to the postoperative tinnitus outcome.Material and Methods. A prospective study was performed in 89 consecutive patients with unilateral vestibular schwannoma indicated for microsurgery. Patient and tumor related parameters, pre- and postoperative hearing level, intraoperative findings, and hearing and tinnitus handicap inventory scores were analyzed.Results. Cochlear nerve integrity was achieved in 44% corresponding to preservation of preoperatively serviceable hearing in 47% and useful hearing in 21%. Main prognostic factors of hearing preservation were grade/size of tumor, preoperative hearing level, intraoperative neuromonitoring, tumor consistency, and adhesion to neurovascular structures. Microsurgery led to elimination of tinnitus in 66% but also new-onset of the symptom in 14% of cases. Preservation of useful hearing and neurectomy of the eighth cranial nerve were main prognostic factors of tinnitus elimination. Preservation of cochlear nerve but loss of preoperative hearing emerged as the main factor for tinnitus persistence and new onset tinnitus. Decrease of THI scores was observed postoperatively.Conclusions. Our results underscore the importance of proper pre- and intraoperative decision making about attempt at hearing preservation versus potential for tinnitus elimination/risk of new onset of tinnitus.

Intraoperative Cochlear Nerve Monitoring for Vestibular Schwannoma Resection and Simultaneous Cochlear Implantation in Neurofibromatosis Type 2: A Case Series

2021 ◽  
Author(s):  
Margaret J Butler ◽  
Cameron C Wick ◽  
Matthew A Shew ◽  
Michael R Chicoine ◽  
Amanda J Ortmann ◽  
...  
Keyword(s):  
Vestibular Schwannoma ◽  
Cochlear Implantation ◽  
Case Series ◽  
Neurofibromatosis Type ◽  
Neurofibromatosis Type 2 ◽  
Cochlear Nerve ◽  
Tumor Removal ◽  
Nerve Monitoring ◽  
Brainstem Response

Abstract BACKGROUND Neurofibromatosis type 2 (NF2) often results in profound hearing loss and cochlear implantation is an emerging hearing rehabilitation option. However, cochlear implant (CI) outcomes in this population vary, and intraoperative monitoring to predict cochlear nerve viability and subsequent outcomes is not well-established. OBJECTIVE To review the use of intraoperative electrically evoked cochlear nerve monitoring in patients with NF2 simultaneous translabyrinthine (TL) vestibular schwannoma (VS) resection and cochlear implantation. METHODS A retrospective review was performed of 3 patients with NF2 that underwent simultaneous TL VS resection and cochlear implantation with electrical auditory brainstem response (eABR) measured throughout tumor resection. Patient demographics, preoperative assessments, surgical procedures, and outcomes were reviewed. RESULTS Patients 1 and 3 had a reliable eABR throughout tumor removal. Patient 2 had eABR pretumor removal, but post-tumor removal eABR presence could not be reliably determined because of electrical artifact interference. All patients achieved auditory percepts upon CI activation. Patients 1 and 2 experienced a decline in CI performance after 1 yr and after 3 mo, respectively. Patient 3 continues to perform well at 9 mo. Patients 2 and 3 are daily users of their CI. CONCLUSION Cochlear implantation is attainable in cases of NF2-associated VS resection. Intraoperative eABR may facilitate cochlear nerve preservation during tumor removal, though more data and long-term outcomes are needed to refine eABR methodology and predictive value for this population.

scholarly journals Intratympanic dexamethasone for managing pregnant women with sudden hearing loss

2018 ◽  
Vol 47 (1) ◽  
pp. 377-382 ◽  
Author(s):  
Yaoyao Fu ◽  
Jianghua Jing ◽  
Tongli Ren ◽  
Hui Zhao
Keyword(s):  
Hearing Loss ◽  
Pregnant Women ◽  
Sudden Hearing Loss ◽  
Pure Tone Audiogram ◽  
Randomized Controlled ◽  
Randomized Controlled Studies ◽  
Middle Ear Infection ◽  
The Mean ◽  
A Prospective Study ◽  
Intratympanic Dexamethasone

Objective This study aimed to investigate the effect and safety of intratympanic dexamethasone in pregnant women with idiopathic sudden sensorineural hearing loss (ISSNHL). Methods We performed a prospective study on pregnant women who suffered from ISSNHL and were treated in our clinic during 2016. The patients received intratympanic treatment three to four times a week. A pure tone audiogram (PTA) was performed before treatment and patients were followed up until 2 months after treatment was finished. Results A total of six pregnant women were included. All of the patients tolerated intratympanic treatment well. The mean improvement in hearing was 48 ± 7.33 dB. There were no complications, including permanent perforation of the ear drum or middle ear infection. Each patient delivered a healthy newborn. Conclusion Intratympanic dexamethasone is effective and safe for treating pregnant women with ISSNHL. Further randomized, controlled studies on this treatment need to be performed.

Sign in / Sign up

Export Citation Format

Share Document