scholarly journals Quality control after cochlear intralabyrinthine schwannoma resection and cochlear implantation

2021 ◽  
Author(s):  
A Kilgué ◽  
H Sudhoff ◽  
Björn Gehl ◽  
I Todt ◽  
C Riemann ◽  
...  
Keyword(s):  
Quality Control ◽  
Cochlear Implantation ◽  
Intralabyrinthine Schwannoma

scholarly journals Quality Control after Intracochlear Intralabyrinthine Schwannoma Resection and Cochlear Implantation

2021 ◽  
Vol 11 (9) ◽  
pp. 1221
Author(s):  
Holger Sudhoff ◽  
Lars Uwe Scholtz ◽  
Hans Björn Gehl ◽  
Ingo Todt
Keyword(s):  
Quality Control ◽  
Cochlear Implantation ◽  
Surgical Removal ◽  
Slice Thickness ◽  
Residual Rate ◽  
Implant Position ◽  
Post Surgery ◽  
Quality Control Tool ◽  
Intralabyrinthine Schwannoma

Background: The combination of intralabyrinthine schwannoma (ILS) removal and cochlear implantation is the standard of care after surgical resection for audiological rehabilitation. Intracochlear ILS is not only the most frequent tumor in this group of schwannomas, but it is also, to some degree, surgically the most challenging because of its position behind the modiolus. Recent developments in the knowledge of implant position, implant magnet choice, and magnetic resonance imaging (MRI) sequences make an MRI follow-up after surgical removal possible. Thus far, no results are known about the surgical success and residual rate of these kind of tumors. The aim of the present study was to perform an early MRI follow-up for the evaluation of residual or recurrent intracochlear ILS after surgical removal and cochlear implantation. Methods: In a retrospective study, we evaluated seven patients after an intracochlear ILS removal and single-stage cochlear implantation with a mean period of 13.4 months post surgery with a 3T T1 GAD 2 mm sequence for a residual ILS. Patients were operated on using an individualized technique concept. Results: In six out of seven cases, 3 T T1 GAD 2 mm MRI follow-up showed no residual or recurrent tumor. In one case, a T1 signal indicated a tumor of the upper inner auditory canal (IAC) at the MRI follow up. Conclusion: MRI follow-up as a quality control tool after ILS removal and cochlear implantation is highly important to exclude residual tumors. Long-term MRI evaluation results are needed and can be obtained under consideration of implant position, implant magnet, and MRI sequence choice. A preoperative MRI slice thickness less than 2 mm can be recommended to visualize possible modiolar and IAC expansion.

Cochlear implantation after resection of an intralabyrinthine schwannoma

2014 ◽  
Vol 35 (2) ◽  
pp. 257-260 ◽  
Author(s):  
Christopher A. Schutt ◽  
John F. Kveton
Keyword(s):  
Cochlear Implantation ◽  
Intralabyrinthine Schwannoma

scholarly journals A Case of Intralabyrinthine Schwannoma Removal and Sequential BonebridgeTM Implantation

2021 ◽  
Vol 64 (12) ◽  
pp. 949-953
Author(s):  
Jeong Hae Park ◽  
Jae Sang Han ◽  
Yeonji Kim ◽  
Shi Nae Park
Keyword(s):  
Hearing Loss ◽  
Cochlear Implantation ◽  
Benign Tumor ◽  
Bone Conduction ◽  
Tumor Removal ◽  
Hearing Rehabilitation ◽  
Bone Conduction Implant ◽  
Intralabyrinthine Schwannoma ◽  
Rare Benign Tumor ◽  
Cochlear Ossification

Intralabyrinthine schwannoma (ILS) is a rare benign tumor that arises within the membranous labyrinthine. Since hearing loss is inevitable after tumor removal in most cases, an appropriate rehabilitation method should be considered. A 41-year-old male, who was diagnosed with ILS underwent tumor removal via translabyrinthine approach, has subsequently experienced right-side deafness as a result. Seventeen months after the tumor removal, a surgery for hearing rehabilitation was performed. Since cochlear implantation was not doable due to cochlear ossification, an active transcutaneous bone conduction implant (BonebridgeTM , MEDEL) was placed at the sinodural angle. To the best of our knowledge, this is the first report describing hearing rehabilitation with BonebridgeTM implantation after ILS removal.

scholarly journals Enhanced quality control after cochlear implantation by flat detector computer tomography

2019 ◽  
Author(s):  
P Schendzielorz ◽  
M Köping ◽  
T Neun ◽  
R Hagen ◽  
K Rak
Keyword(s):  
Quality Control ◽  
Computer Tomography ◽  
Cochlear Implantation ◽  
Flat Detector

scholarly journals Challenges of Cochlear Implantation in Intralabyrinthine Schwannoma Patients: Surgical Procedures and Auditory Outcome

2021 ◽  
Vol 10 (17) ◽  
pp. 3899
Author(s):  
Sophia Marie Häussler ◽  
Agnieszka J. Szczepek ◽  
Stefan Gräbel ◽  
Heidi Olze
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implantation ◽  
Benign Tumor ◽  
Tumor Location ◽  
Tumor Removal ◽  
Intralabyrinthine Schwannoma ◽  
Rare Benign Tumor ◽  
Lost To Follow Up

Intralabyrinthine schwannoma (ILS) is a rare benign tumor of the inner ear potentially causing unilateral sensorineural hearing loss and vertigo. This study evaluated the outcome of one surgical session comprising microsurgical ILS resection and cochlear implantation in terms of surgical feasibility, complications, and auditory outcome. Ten clinically and histologically confirmed ILS patients included in this study (three women and seven men; mean age 56.4 ± 8.6) underwent surgery between July 2015 and February 2020. Eight patients had intracochlear tumor location; the remaining two had vestibulocochlear and intravestibular ILS. One of the three following methods was used for tumor removal: an extended cochleostomy, subtotal cochleoectomy, or a translabyrinthine approach. Although negligible improvement was observed in two of the patients, two patients were lost to follow-up, and one opted out from using CI, the speech perception of the five remaining ILS patients improved as per the Freiburg Monosyllable Test (FMT) from 0% before surgery to 45– 50% after the implantation. Our study supports the presented surgical approach’s feasibility and safety, enabling tumor removal and hearing restoration shortly after surgery.

Cochlear implantation: auditory perception in prelingually deaf children

1998 ◽  
Vol 23 (4) ◽  
pp. 372-372 ◽  
Author(s):  
Nikolopoulos ◽  
Archbold ◽  
O'donoghue
Keyword(s):  
Cochlear Implantation ◽  
Auditory Perception ◽  
Deaf Children ◽  
Prelingually Deaf

Health communication ethics and CDC quality-control guidelines for information

2003 ◽  
Vol 118 (3) ◽  
pp. 193-196 ◽  
Author(s):  
Jeffrey W McKenna ◽  
Terry F Pechacek ◽  
Donna F Stroup
Keyword(s):  
Quality Control ◽  
Health Communication ◽  
Communication Ethics
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