scholarly journals Surgical Planning for Cochlear Implantation in Far-Advanced Otosclerosis: The Utility of OTOPLAN

2021 ◽  
Vol 58 (4) ◽  
pp. 289-290
Author(s):  
Andrea Lovato ◽  
◽  
Cosimo de Filippis ◽  
Keyword(s):  
Cochlear Implantation ◽  
Surgical Planning

Post-operative problems and complications in 313 consecutive cochlear implantations

2008 ◽  
Vol 123 (5) ◽  
pp. 492-496 ◽  
Author(s):  
T Ovesen ◽  
L V Johansen
Keyword(s):  
Cochlear Implantation ◽  
Surgical Planning ◽  
Chart Review ◽  
Retrospective Chart Review ◽  
Safe Procedure ◽  
Tertiary Referral Centre ◽  
Antibiotic Resistant ◽  
Danish Patient ◽  
Study Population ◽  
Radical Cavity

AbstractObjective:To describe problems and complications associated with cochlear implantation, and their management, in a Danish patient population comprising both paediatric and adult patients.Design:Retrospective chart review.Setting:Tertiary referral centre.Subjects:Three hundred and thirteen consecutive cochlear implantations were studied. The median age of the study population was 10 years. Sixty per cent of patients were children and 40 per cent were adult; 52 per cent were female and 48 per cent were male.Intervention:Two hundred and ninety-four patients received a Cochlear Nucleus®implant. The remaining 19 received an Advanced Bionics implant.Main outcome measure:Presence of problems and complications after cochlear implantation.Results:Post-operative complications were found in 15.7 per cent of patients. The majority of these complications (11.2 per cent) were minor; 4.5 per cent were major. The major complications included one patient with meningitis, one patient with multiple antibiotic resistantStaphylococcus aureusinfection of a radical cavity, and one diabetic patient who developed a severe skin infection and whose implant became exposed.Conclusion:Cochlear implantation is a safe procedure within the studied setting. However, it is essential that careful attention be paid to surgical planning and technique, and it is important that healthcare staff and patients be aware of the possible problems and complications.

scholarly journals Implementation of secondary reconstructions of flat-panel volume computed tomography (fpVCT) and otological planning software for anatomically based cochlear implantation

2021 ◽  
Author(s):  
Franz-Tassilo Müller-Graff ◽  
Lukas Ilgen ◽  
Philipp Schendzielorz ◽  
Johannes Voelker ◽  
Johannes Taeger ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cochlear Implantation ◽  
Surgical Planning ◽  
Imaging Data ◽  
Flat Panel ◽  
Implanted Electrodes ◽  
Volume Computed Tomography ◽  
Planning Software ◽  
Postoperative Setting

Abstract Purpose For further improvements in cochlear implantation, the measurement of the cochlear duct length (CDL) and the determination of the electrode contact position (ECP) are increasingly in the focus of clinical research. Usually, these items were investigated by multislice computed tomography (MSCT). The determination of ECP was only possible by research programs so far. Flat-panel volume computed tomography (fpVCT) and its secondary reconstructions (fpVCTSECO) allow for high spatial resolution for the visualization of the temporal bone structures. Using a newly developed surgical planning software that enables the evaluation of CDL and the determination of postoperative ECP, this study aimed to investigate the combination of fpVCT and otological planning software to improve the implementation of an anatomically based cochlear implantation. Methods Cochlear measurements were performed utilizing surgical planning software in imaging data (MSCT, fpVCT and fpVCTSECO) of patients with and without implanted electrodes. Results Measurement of the CDL by the use of an otological planning software was highly reliable using fpVCTSECO with a lower variance between the respective measurements compared to MSCT. The determination of the inter-electrode-distance (IED) between the ECP was improved in fpVCTSECO compared to MSCT. Conclusion The combination of fpVCTSECO and otological planning software permits a simplified and more reliable analysis of the cochlea in the pre- and postoperative setting. The combination of both systems will enable further progress in the development of an anatomically based cochlear implantation.

On the Accuracy of Clinical Insertion Angle Predictions With a Surgical Planning Platform for Cochlear Implantation

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Emilio Avallone ◽  
Thomas Lenarz ◽  
Max E. Timm
Keyword(s):  
Cochlear Implantation ◽  
Surgical Planning ◽  
Insertion Angle

MAGNETIC RESONANCE IMAGING IN SURGICAL PLANNING FOR COCHLEAR IMPLANTATION

1993 ◽  
Vol 86 (Supplement) ◽  
pp. 90
Author(s):  
Moises Arriaga ◽  
David Carrier ◽  
Phyllis Chapel ◽  
Richard Kluznick
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Cochlear Implantation ◽  
Surgical Planning ◽  
Resonance Imaging

scholarly journals Scala vestibuli cochlear implant supported by 3D modeling of the inner ear

2021 ◽  
Author(s):  
Clemens Holzmeister ◽  
Alexandros Andrianakis ◽  
Peter Kiss ◽  
Ulrich Moser ◽  
Matthias Graupp
Keyword(s):  
Inner Ear ◽  
Cochlear Implantation ◽  
Surgical Planning ◽  
Present Report ◽  
Hearing Threshold ◽  
Pure Tone Audiometry ◽  
Electrode Placement ◽  
3D Segmentation ◽  
Brainstem Response ◽  
Scala Vestibuli

SummaryPatients with scala tympani (ST) ossification present a distinct surgical challenge. Three-dimensional (3D) segmentation of the inner ear offers accurate identification of ossification and surgical planning of the cochleostomy to access the scala vestibuli. The scala vestibuli placement of cochlear implantation electrode is an alternate solution in these patients and is well supported by the literature.The present report describes a case of cochlear implantation in the scala vestibuli assisted by 3D segmentation of the cochlea for a patient with ossification in the ST and reviews the relevant literature. Clinical presentation of a 45-year-old Austrian female who was referred with a history of sudden sensorineural hearing loss 2 years ago in the right ear, confirmed by pure tone audiometry (PTA) and acoustically evoked auditory brainstem response (ABR). 3D segmentation of the inner ear identified the extent of ossification in the ST and assisted in the surgical planning of cochleostomy drilling anterior-superior to the round window to access the scala vestibuli for the electrode placement. Postoperative computed tomography (CT) to confirm the electrode placement in the scala vestibuli and PTA was performed to assess the hearing threshold following the cochlear implantation. Postoperative CT confirmed the full insertion of a flexible electrode. The hearing threshold measured by PTA was ≤ 40 dB across all frequencies tested. Review of the literature identified a total of 13 published reports on cochlear implantation electrode placement in scala vestibuli in cases with ossification in the ST.

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
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